how do you solve a stoichiometry?

Answers

Answer 1

Answer:

Explanation:

Although stochiometry is very scary loking math it is very easy and and fun to learn.

First Balance the chemical equation (Meaning there are equal amounts of elements at end and begining

Second Convert your units to mols

mols are what allows for stochiometry math to work to know how to find the mols takes practice and knowing when to write the math.

Then from there is just knowing how to go from grams to kg or g to mg and etc

How Do You Solve A Stoichiometry?

Related Questions

calculate the mass of .00566 mol of germanium, show work.

Answers

1 mol of germanium = molar mass = 72.630 grams.

(0.00566 mol Ge) x (72.630 grams/1 mol Ge) = 0.410 grams age

Atoms of chlorine-37 have a mass number of 37.
Calculate the number of neutrons in atoms of chlorine-37.

Answers

Answer:

20

Explanation:

17 proton and 20 neutrons

Answer: #Neutrons= 20

Explanation: Cl with 37 mass number has the atomic number of 17.

Solution:

mass number = Protons + Neutrons

But # Protons = 17

Therefore, N= A-P= 37-17= 20 neutrons

what is purpose of fine sand filter in purification of water

Answers

Sand filtration is used for the removal of suspended matter, as well as floating and sinkable particles. The wastewater flows vertically through a fine bed of sand and/or gravel. Particles are removed by way of absorption or physical encapsulation. If there is excessive pressure loss on the filter, it must be rinsed.

A sample of methane collected when the temp was 30 C mmHg measures 398 mL. What would be the volume of the sample at -5 C and 616 mmHg pressure

Answers

Question

A sample of methane collected when the temp was 30 C and 760mmHg measures 398 mL. What would be the volume of the sample at -5 C and 616 mmHg pressure

Answer:

434.32mL

Explanation:

Using the combined gas law:

[tex]\frac{PV}{T}[/tex] = k

Where;

P = Pressure

V = Volume

T = Temperature

k = constant.

It can be deduced that:

[tex]\frac{P_1V_1}{T_1}[/tex] = [tex]\frac{P_2V_2}{T_2}[/tex] = k           ---------------------(i)

Where:

P₁ and P₂ are the initial and final pressures of the given gas

V₁ and V₂ are the initial and final volumes of the given gas

T₁ and T₂ are the initial and final temperatures of the gas.

From the question:

the gas is methane

P₁  = 760mmHg

P₂ = 616mmHg

V₁ = 398mL

V₂ = ?

T₁ = 30°C = (30 +273)K = 303K

T₂ = -5°C = (-5 +273)K = 268K

Substitute these values into equation (i) as follows;

[tex]\frac{760*398}{303}[/tex] = [tex]\frac{616*V_2}{268}[/tex]

Solve for V₂

V₂ = [tex]\frac{760*398*268}{616*303}[/tex]

V₂ = 434.32mL

Therefore, the volume of the sample at -5C and 616mmHg pressure is 434.32mL

N2+ 3H2= 2NH3+ energy Design criteria are the desired features of a design. Identify at least two criteria for the design of the ammonia-making process. Explain why these criteria are important.

Answers

Efficiency and safety are important criteria for the design of ammonia production processes, as they consume less energy and reliably produce large amounts of ammonia with minimal risk of accidents.

What are Design Criteria?

Design criteria are specific characteristics or requirements that a design must meet in order to be successful. They provide clear and measurable criteria for evaluating designs, ensuring that the final product meets the needs and expectations of customers or users. Design criteria include not only technical specifications such as size, weight and materials, but also performance requirements such as safety, efficiency and durability. It can also include cost-related criteria such as manufacturing cost, ease of maintenance, and environmental aspects. The process of identifying and defining design criteria is an important step in the design process as it helps ensure that the final product meets user needs and is fit for purpose. This is important because as much of the reactants (nitrogen and hydrogen) as possible are converted to ammonia, thereby maximizing the yield of the process. This is important to make the process economical and produce large amounts of ammonia.

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How many grams of hydrogen gas is produced in Zn + HCl

Answers

Answer:

3.08 grams

Explanation:

Answer:3.08 grams

Explanation:

faxxxsss

1) HA + H2O <--> H3O+ + A- ....what is HA considered?
O
Acid
Base
Conjugate Acid
Conjugate Base

Answers

HA is considered as acid and

There are 20 mg of cromolyn sodium in 2 ml of normal saline. What is the percentage strength of the solution

Answers

The percentage strength of the solution is 1%.

According to question,

we are given that the 20mg of cromolyn sodium in 2 ml of normal saline is taken.

Now, to find the percentage strength first know the meaning of percentage strength.

The amount of solute dissolved in gram per liter of the solution is used to determine the solution's strength. It stands for the solution's potency or concentration. It uses gram per liter of expression.

Now here we are given the the mass and volume connection so we have to find the percentage in terms of it.

percentage strength=[tex]\frac{mass}{volume} *100[/tex]

percentage strength=[tex]\frac{0.020*100}{2}[/tex]

on solving we get,

percentage strength=1%

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Place the following in order of increasing radius.
Br- Na+ Rb+

Answers

The order of increasing radius is:  Na+ < Rb+ < Br-

The radius of an atom or ion is a measure of the size of the atomic nucleus and the electron cloud that surrounds it. The radius of an atom or ion can be affected by various factors such as the number of protons, neutrons and electrons it has, as well as the electron configuration. In general, as we move from left to right across the periodic table, atomic radius tends to increase.

In the case of the three ions you provided, Br-, Na+ and Rb+ , the order of increasing radius is as follows:

Na+ has the smallest atomic radius among the three, as it has lost one electron and become a positive ion, the removal of the electron increases the effective nuclear charge, making the electron cloud more tightly held.

Rb+ has a slightly larger atomic radius than Na+ as it has one more electron and one more proton in its nucleus than Na+, making the electron cloud slightly less tightly held.

Br- has the largest atomic radius among the three as it has gained an electron and become a negative ion, the addition of the electron decreases the effective nuclear charge, making the electron cloud less tightly held.

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HELP NOW PLEASE Which is not a type of RNA in the diagram
mRNA
rRNA
tRNA
zRNA

Answers

Answer:

zRNA

Explanation:

RNA is a nucleic acid responsible for the synthesis of proteins, since it is the molecule that carries the information contained in DNA for the biological process called transcription.

There are three types of RNA, the mRNA, the tRNA and the rRNA. There is no RNA called a zRNA, however, existing RNAs have different functions. These functions are listed below:

The mRNA is called messenger RNA and is the RNA responsible for containing the DNA information that will be translated into proteins created during protein synthesis.

The tRNA is responsible for identifying the information presented by the mRNA, creating amino acids from it and transporting those amino acids in the right order to form proteins.

rRNA is also called ribosomal RNA and is responsible for creating ribosomes, which are the organelles where protein synthesis will take place.

Which statement is TRUE about liquid and gases? *

a. They have both definite shape.
b. They have both definite volume
c. Their particles are incompressible
d. They assume the shape of container.

Answers

Answer:

The Answer is gonna be d. They assume the shape of container

This is the right Answer

I hope you are having a great day :3

N2(g) + 3 H2(g) + 2 NH3(g)
What is the mole-to-mole ratio between nitrogen gas and hydrogen gas?

Answers

Answer:

Notice that you have a 1:3. mole ratio between nitrogen gas and hydrogen gas. This means that, regardless of how many moles of nitrogen gas you have, the reaction will always consume twice as many moles of hydrogen gas.

Explanation:

1. In your own words, differentiate absorption, reflection, refraction.


2. Compare/Contrast Sound Waves and Light Waves.


FOR 20 POINTS

Answers

Answer:

Reflection: reflection is the process of returning of light into the same medium after striking a surface.

How do we measure energy of a reaction?

Answers

Answer:

joules.

Explanation:

A measure of the total internal heat content.

which could be exothermic or endothermic

Which of the following elements will form positive ions Na N Cu Br

Answers

Answer:

Na, Cu, and Br will form positive ions

Explanation:

Na, Cu, and Br have more protons than electrons, so they will form positive ions.

Na, Cu, and Br are all elements that have an atomic number greater than their number of electrons. This means that they have more protons than electrons, so they will form positive ions when they react with other elements. Na will form Na+, Cu will form Cu+ and Br will form Br+.

What were the 3 missing elements in the periodic table?

Answers

The three missing elements in the periodic table are gallium, germanium and scandium.

Gallium, germanium, and scandium have been all unknown in 1871, however, Mendeleev left areas for every and expected their atomic loads and different chemical properties. Within 15 years, the “lacking” factors have been discovered, conforming to the simple traits Mendeleev had recorded. Scientists in Japan suppose they have eventually created the elusive detail 113, one of the lacking gadgets at the periodic table of factors. Element 113 is an atom with 113 protons in its nucleus — a kind of depend that should be created inner a laboratory as it isn't always located evidently on Earth.

The elements are gallium, germanium and scandium.

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what are the two quantities in this module for which we will develop unit factors to do dimensional analysis with chemical substances?

Answers

The two quantities in this module for which we will develop unit factors to do dimensional analysis with chemical substances are mass (m) and volume (V).

To calculate the unit factor, we need to divide the unit of the desired quantity by the unit of the given quantity. For example, to convert from mass to volume, the unit factor is V/m.

This unit factor can then be used to convert mass to volume or vice versa. Dimensional analysis helps us to determine the proper units for a given equation and to convert from one unit to another.

It also allows us to compare different units of measurement and to check that the units in both sides of an equation match. This is especially useful in chemical calculations, where it is important to ensure the correct units are used.

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Anyone know this question

Answers

Answer:

Second option. 3

Explanation:

In order to balance a equation you need to have the same amount of atoms/moles in both sides.

Na₃PO₄  +  _ HCl  →  3NaCl  + H₃PO₄

In reactant side we have 3 Na and we have the same amount in product side.

We also have 1 P and 4 O in both sides of the equation.

As we have 3 moles of NaCl in product side, this means we have:

NaCl →  Na⁺  +  Cl⁻

3 moles of Na⁺ and 3 moles of Cl⁻. In conclussion we need 3 moles of Cl⁻ in reactant side.Then, the stoichiometry of HCl must be, 3.

3 moles of HCl means that we have 3 moles of protons (H⁺).

HCl  → H⁺  +  Cl⁻

If you see the phosphoric acid, we also have 3 moles of protons.

H₃PO₄ →  3H⁺  +  PO₄³⁻

Complete balanced equation is:

Na₃PO₄  +  3HCl  →  3NaCl  + H₃PO₄

How the structure of molecule affects physical properties?

Answers

The structure of a molecule affects its physical properties because the arrangement of the atoms in the molecule determines the type of forces that interact between molecules.

And that forces affect how the molecules move and interact with each other. This, in turn, affects the physical properties of the molecule, such as its melting point, boiling point, polarity, and solubility.

For example, when a molecule has a higher number of non-polar bonds due to symmetrical structures, it will be less polar overall and have fewer attractive forces acting between molecules, resulting in a higher boiling point and lower solubility.

On the other hand, a molecule with a higher number of polar bonds due to asymmetrical structures will be more polar overall, leading to stronger attractive forces acting between molecules, resulting in a lower boiling point and higher solubility.

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Al + Ni(NO3)2 + Al(NO3)3 + Ni

Answers

Answer:

Aluminum + Nickel(Ii) Nitrate = Nickel + Aluminum Nitrate

Explanation:

Give the orbital configuration of the following elements using the s, p, d, f type representation. (Answer format is: 1se2

Answers

The orbital configuration of following elements is as follows: i) helium- 1 s² ii)nitrogen- 1 s² 2 s²  2 p³ iii)silicon-1 s² 2 s² 2 p⁶ 3 s² 3 p²

What are elements?

It is defined as a substance which cannot be broken down further into any other substance. Each element is made up of its own type of atom. Due to this reason all elements are different from one another.

Elements can be classified as metals and non-metals. Metals are shiny and conduct electricity and are all solids at room temperature except mercury. Non-metals do not conduct electricity and are mostly gases at room temperature except carbon and sulfur.

The number of protons in the nucleus is the defining property of an element and is related to the atomic number. All atoms with same atomic number are atoms of same element.

Here,

The orbital configuration of following elements is as follows: i) helium- 1 s² ii)nitrogen- 1 s² 2 s²  2 p³ iii)silicon-1 s² 2 s² 2 p⁶ 3 s² 3 p²

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It is known that the reaction A - B is
second order with a rate constant of
k= 0.1 s-1 a 200°C. If the initial
concentration of A is 0.5 M, what is the
concentration of A after 30 seconds?

Answers

Answer:

0.0203M

Explanation:

We'll use the integrated rate law for second order reactions:

1/[A]=1/[A]initial+kt

[A]initial=0.5M

k=0.1/s

t=200°C but we need in Kelvins

t=200 +273.15K=473.15K

1/[A]=1/[0.5]+[0.1 x 473.15]

1/[A]=49.315M

[A]~0.0203M

Hope it helps:)

An extremely efficient enzyme has a ____ KM and a ____ kcat.

Answers

An extremely efficient enzyme has a small KM and a large kcat.

The conversion rate at the lowest substrate concentration is measured in kcat/km. This interpretation is accurate. kcat/Km is a good indicator of an enzyme's effectiveness since it takes into account both the enzyme's maximum rate, kcat, and its affinity for its substrate (Km).The turnover number, or the number of molecules that may be created per second per active site, of an enzyme is provided by the formula k c a t / kM.Because the substrate concentration is almost usually much greater than the Km, in many situations, enzymes are only better when they have a larger kcat. It seems disingenuous to me to use the ratio when this is plainly the case, yet it still happens much too frequently. It could serve as a useful benchmark when compared to enzymes in particular situations.

complete question:An extremely efficient enzyme has a _____ KM and a _____ kcat.

A) small; small

B) small; large

C) large; large

D) large; small

E) kcat and KM do nothing to predict the efficiency of an enzyme

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if a molecule has a phase transition from gas to liquid, does that mean it increases attractive force

Answers

When a molecule undergoes phase transition from gas to liquid, it means that there is an increase in the attractive force.

The matter which is present around us exists in three major states which are solids, liquids and gases. The attractive forces that are present between the particles of matter are known as the intermolecular forces and they change with the change or transition in state of matter.

The particles of solids have the highest intermolecular force followed by liquids and then followed by gas. When a particular gas changes into the liquid state, the attractive forces between its particles increases.

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The reaction of solid sodium metal with gaseous diatomic chlorine produces common table salt and lots of heat. The chemical equation for this reaction is best written as

Answers

The chemical equation for this reaction is best written as: Na (s) + Cl2 (g) → NaCl (s) + Heat

What is reaction?

Reaction is a process in which one or more substances are changed into one or more different substances. It is a chemical or physical change that occurs in response to a stimulus. Reactions can be used to create new materials or to break down existing materials into simpler components. They can also be used to generate energy or to store energy. Reactions can be either spontaneous or non-spontaneous, depending on the conditions in which they occur.

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One grizzly bear population has moved to an area that has snow year-round. Which of these statements might you expect to occur if a mutation for coat color is going to spread through the population?

Answers

To solve this we must be knowing each and every concept related to mutation and types of mutations. Therefore, the correct option is option C.

What is mutation?

A mutation is, at its most basic, a change or alteration. Chromosome and gene alterations, known as mutations in biology, frequently appear physically.

One grizzly bear population has moved to an area that has snow year-round. If a mutation for coat color is going to spread through the population then Grizzly bears that have a lighter fur mutation can catch prey more easily and so have more resources to have more offspring. Due to this, the trait starts to spread through the population.

Therefore, the correct option is option C.

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What type of reaction is Fe+H2O=Fe3O4+H2

Answers

Answer:

single replacement

Explanation:

it's when one element starts out by itself, then replaces another element in a compound, kicking it out

Answer: This is a chemical reaction

Explanation: Hope this helps:)))

In a lifetime, the average American uses more than a half ton (500 kg) of copper in coins, plumbing, and wiring. Copper is obtained from sulfide ores, such as chalcocite [copper(I) sulfide] by a multistep process. After initial grinding, the ore is "roasted" (heated strongly with oxygen gas) to form powdered copper(I) oxide and gaseous sulfur dioxide. How many moles of oxygen are required to roast 10. 0 mol of copper(I) sulfide?

Answers

The required moles of oxygen is 10.0 mol of [tex]O_2[/tex] (Oxygen) is required to roast 10.0 mol of CuS (copper(I) sulfide).

Because the Sulphur absorbs the impurities as fumes and reacts with the remaining ore to produce Copper metal by auto-reduction, the ore is partially roasted.

[tex]Cu_2S.Fe_2S_3+O_2→Cu_2S+2FeS+SO_2[/tex]

[tex]Cu_2S+3O_2→Cu_2O+2SO_2[/tex]

Sulfide ore is heated by a heat source in the presence of air during the roasting process. The ore or ore concentrate is treated with very well-liked air during roasting. This method is frequently used when processing sulfide ores. The sulfide that is present during roasting is changed into oxide and emitted as sulfur dioxide, a gas.

Roasting's primary purposes are to eliminate volatile impurities and oxidize the ore by turning it into oxide.

A significant copper resource is COPPER-PYRITES, often known as chalcopyrite, which is a copper iron sulfide (CuFeS2).

To roast 10.0 mol of copper(I) sulfide (CuS), the balanced equation is CuS + O2 → CuO + SO2.

For every mole of CuS that reacts, one mole of O2 is consumed. Therefore, 10.0 mol of [tex]O_2[/tex] is required to roast 10.0 mol of CuS.

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Hydrochloric acid (HCl) is a strong acid that completely ionizes in an aqueous solution. If its [H3O+] concentration is 0.023 M, what is its pH

Answers

Answer:

pH = 1.64

Explanation:

For an arbitrary worm of length L, radius R, and density d, write an equation (using the symbols A and/or B rather than the numbers) that expresses the number of moles of oxygen the worm absorbs per hour and the number of moles the worm uses per hour. How can you tell whether the worm takes in oxygen at a rate fast enough to survive

Answers

The number of moles of oxygen a worm absorbs per hour can be calculated using the formula:

A = (LR^2dO2) / (MT)

Where A is the molar flow rate of oxygen, L is the length of the worm, R is the radius of the worm, d is the density of the worm, O2 is the concentration of oxygen in the environment, M is the molar mass of oxygen, and T is the time in hours.

The number of moles of oxygen the worm uses per hour can be calculated using the formula:

B = (k*A)

Where B is the molar flow rate of oxygen used by the worm and k is the rate constant for oxygen consumption.

To determine whether the worm is taking in oxygen at a rate fast enough to survive, we would need to compare the rate of oxygen absorption (A) to the rate of oxygen consumption (B). If A > B, then the worm is absorbing oxygen at a rate that is greater than or equal to the rate at which it is consuming oxygen, and it should be able to survive. If A < B, then the worm is not absorbing oxygen fast enough to sustain its metabolism and it may not survive.

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Given right triangle ABC with altitude BD drawn to hypotenuseAC. If AC = 27 and DC = 3, what is the length of BC?27D3BX please help I don't get it NO LINKS or I'll report pls don't answer the question if u don't know Which of the following quotations employs the use of onomatopoeia? A. Give me my sin again!B. I tell you, he that can lay hold of her / Shall have the chinks.C. My lips, two blushing pilgrims, ready stand / To smooth that rough touch with a tender kiss.D. This, by his voice, should be a Montague. / Fetch me my rapier, boy Who were the two other politics who were also supposed to be assassinated at the same time as Lincoln A fish swims at an altitude of -20.2 meters. A bird flies at an altitude of 38.1 meters. Which of the following statements are true? Select all that apply. a. The bird's altitude is greater than the fish's alititude b. The bird's altitude is less than the fish's altitude c. The fish is closer to sea level than the bird d. The fish is farther from sea level than the bird e. The fish and the bird are the same distance from sea level. What is the difference between static and dynamic flexibility ? (5x+3y) - (2x-7y) +8x if you Decrease 200 by 12.5% what do you get? What is different about the experience of writing a poem collaboratively, compared to writing a poem on your own?the kinds of words you're allowed to useyour level of control over the outcomethe amount of creativity involvedthe level of skill required to participate PLEASE I NEED THIS!! Which quadrilateral(s) have the same attributes as a rhombus What are the factors of production needed to create all goods and services? brandon buys a new seadoo. he goes 12km north from the beach he jumps wakes for 6km to the east what distance did he cover what was his displacement Of the last 20 balloons sold at a party store, 2 were red. What is the experimental probability that the next balloon sold will be red? Write your answer as a fraction or whole number. The ability of a language to let a programmer develop a program on a computer system that can be run on other systems is called ________. This usually requires the program to be recompiled on each type of system, but the program itself may need little or no change. What theme is expressed in both these excerpts? Consider the line =8x6y1.What is the slope of a line parallel to this line?What is the slope of a line perpendicular to this line? Which of the following helped cause the GreatDepression? (Select all that apply. CANNOT CHOOSE ALL OF THE FOLLOWING) A. Overproduction of cropsB. Buying on creditC.Poor banking policiesD. Stock market speculationE. The end of World War IF. The election of Herbert Hoover What are 5 facts about the Russian Revolution? If you throw a ball up in the air at a speed of 14.9 m/s, how fast (in m/s) will it be moving when you catch it Which absolute value function, when graphed, will bewider than the graph of the parent function, f(x) = |x|?