How many milliliters of 0.25 M solution of silver nitrate is needed to react with
sodium chloride to produce 7.6 g of silver chloride?

Answers

Answer 1

Answer:

To find molarity we must convert grams KCl to moles KCl and mL solution to L: ... EXAMPLE: What mass of potassium chloride would be needed to prepare 250.0 mL of a 0.500 ... EXAMPLE: Silver nitrate solution is added to 25.00 mL of a 0.500 M potassium chloride ... g) 0.655 g of sodium carbonate in 100.0 mL of solution.

Explanation:


Related Questions

Student added a strip of aluminium metal in aqueous copper(2)Sulfate but no reaction occured. Suggest a reason why.

Answers

Answer:

See Explanation

Explanation:

It is a common observation that a strip of aluminium metal in aqueous copper(II)Sulfate does not show any visible reaction. Aluminium is normally expected to displace copper in solution since it is higher than copper in the electrochemical series.

The reason for this is that aluminium forms an oxide film around its surface which prevents reaction with aqueous copper(II)Sulfate. This oxides film protects the aluminium surface such that it is now unable to react with the aqueous copper(II)Sulfate

how many moles are in 4.3 grams of Cacl2

Answers

Answer:

0.038744323506090965

Explanation:

Round to whatever decimal point is needed for your answer.

why are vials made from valor glass stronger than typical medical vials?
I. They contain aluminum instead of boron.
II. They were submerged in a hot salt bath.
III. They were formed out of long glass tubes

a. I and II
b. I and III
c. I, II, and III

Answers

is the a waited for me to help you

A sealed, insulated calorimeter contains water at 310 K. The surrounding air temperature is 298 K, and the water inside the calorimeter remains at 310 K two hours later. What type of system does the calorimeter attempt to model

Answers

There is no heat exchange with the environment since the calorimeter is insulated. This may be demonstrated by saying: Since the calorimeter is a fixed unit, it follows that its heat capacity likewise has a fixed value.

Calorimeters are the tools used to measure the amount of heat. The definitions of heat and temperature, the quantity of heat absorbed to raise a body's temperature, the distinction between heat and temperature, and specific heat capacity are among the fundamental ideas presented in this chapter. A chemical reaction's associated thermal energy change is what causes a calorimeter's temperature to fluctuate. If the calorimeter absorbs heat (q calorimeter > 0) and its temperature rises, the reaction is producing heat (q rxn 0).

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Why are sodium ions good for making batteries?

Answers

The largest advantage of sodium-ion batteries is the high natural abundance of sodium. This could make commercial production of sodium-ion batteries less expensive than lithium-ion batteries. As of 2020, sodium ion batteries have very little share of the battery market.

I need your help please...

Answers

Answer:

its c and A

Explanation:

For one it’s d for two it’s c or d u choose

diatomic elements are important. what makes them different from other elemental substances?

Answers

Other elemental substances in that they consist of two atoms of the same element, bonded together.

What is Diatomic elements?

Diatomic elements are chemical elements that exist in the form of two atoms held together by covalent bonds. The most common elements that exist as diatomic molecules are hydrogen, oxygen, nitrogen, fluorine, chlorine, bromine, and iodine. These elements are found in nature and play important roles in the formation of compounds used in everyday life.

This bond is usually covalent in nature, and the two atoms form a stable molecule. This type of molecule is very stable and present in the form of gas, at room temperature and pressure. Examples of diatomic elements are hydrogen, oxygen, nitrogen, fluorine, chlorine, and bromine. Due to the fact that these elements are already in a stable, two-atom form, they exhibit different chemical and physical properties than other elements. For example, diatomic oxygen is highly reactive and can easily combine with other elements, while diatomic nitrogen is relatively inert. This difference in reactivity is due to the fact that the two atoms in the diatomic form share electrons more easily than atoms in other elemental forms.

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In the following pair, which species would you expect to be the stronger Lewis acid?
a Cu+
b Cu2+

Answers

from the given pair,  Cu 2+  is the  specie that would you expect to be the stronger Lewis acid- Cu 2+

A Lewis acid is a chemical species that can accept a pair of electrons to form a covalent bond. It is named after Gilbert N. Lewis, who first proposed the concept in 1923. In general, a Lewis acid can be any atom, ion or molecule that has an empty orbital that can accept an electron pair from a Lewis base. The Lewis base is a species that can donate a pair of electrons to form a covalent bond.Examples of Lewis acids include metal cations, such as Al3+ and Fe3+, and neutral molecules that have a vacant orbital, such as BF3 and AlCl3. Inorganic compounds like H+ and boron trifluoride (BF3) are also examples of Lewis acids. It is important to note that the Lewis acid-base theory is an extension of the Bronsted-Lowry acid-base theory. This theory only considers the transfer of protons, but Lewis theory consider electron pair transfer.

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Which of the following characteristics are true about a typical peptide (amide) bond?
1) The bond is planar.
2) There is free rotation about the carbonyl carbon and nitrogen bond.
3) There is substantial double-bond character to this bond.
4) There is a net negative charge on nitrogen and net positive charge on oxygen.
O Only statements 1, 2, and 4 are correct.
O Only statements 1 and 3 are correct.
O Only statements 2 and 3 are correct.
O All of the listed statements are correct.

Answers

The correct answer is:Only statements 1 and 2 are correct.

1) The bond is planar.

2) There is free rotation about the carbonyl carbon and nitrogen bond.

The bond is planar: True, Peptide bond is a planar bond because it is composed of a double bond between the carbonyl carbon and nitrogen, and the atoms on either side of the double bond are sp2 hybridized. There is free rotation about the carbonyl carbon and nitrogen bond: True, the peptide bond between amino acids in a protein is a single bond, which allows for rotation about the bond, this is one reason proteins can adopt many different conformations.There is substantial double-bond character to this bond: False, the peptide bond is actually a single bond, although it has some double-bond character, it is not a double bond.There is a net negative charge on nitrogen and net positive charge on oxygen: False, both nitrogen and oxygen atoms in a peptide bond are neutral, as there is no charge separation in the bond.

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m
changes saved
13. You are pushing your friend in his wheelchair. You are both taking his dog, Wrathbone, to the vet. Wrathbone is 5 kg and
is sitting in your friend's lap. You decide to increase the wheelchair's acceleration to 7 in order to get up a steep ramp.
If your friend has a mass of 46 kg and his wheelchair has a mass of 16 kg. What is the force you are applying?
338 N
469 N
35 N
O 322 N

Answers

Answer:

469N

Explanation:

adding all mass i hope you got

What element has 4 protons 6 neutrons and 4 electrons

Answers

Answer:

Beryllium is the element that is atomic number 4 on the periodic table.

Answer: Beryllium-10

A 467. 8 ng sample of unknown radioactive substance was placed in storage and its mass measured periodically after 47 days the amount of radioactive substance had decreased 58. 48 ng how many half-lives of the non-radioactive substance have occurred

Answers

The amount of radioactive substance has decreased from 467.8 ng to 58.48 ng after 47 days, so 2.5 half-lives have occurred.

A radioactive isotope's half-life is the amount of time it takes for one half of the radioactive isotope to decay. A specific radioactive isotope's half-life is constant; it is unaffected by conditions and is independent of the initial amount of that isotope.

Half-life = 47/2.5 = 18.8 days

Decrease in Radioactive Substance = 467.8 - 58.48 = 409.32

Half-life amount = 409.32/2.5 = 163.728

Number of half-lives = 409.32/163.728 = 2.5

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If 1.70g of aniline reacts with 2.10g of bromine, what is the theoretical yield of 4-bromoaniline (in grams)

Answers

If 1.70g of aniline reacts with the 2.10 g of bromine, the theoretical yield of 4-bromoaniline is 2.25 g.

1 mole mole of the aniline react with the 1 mol of Br₂ produces 1 mole of the 4 - bromoaniline.

mass of aniline = 1.70 g

molar mass of aniline = 93 g/mol

moles of aniline = 0.0182 mol

mass of Br₂ = 2.10 g

molar mass of Br₂ = 160 g/mol

moles = 2.10/ 160

         =  0.0131 mol

Br₂ is limiting reagent .

moles of 4-bromoaniline =  0.0131

mass of 4-bromoaniline = moles × molar mass

                                        = 0.0131 × 172

                                         = 2.25 g

Thus, the theoretical yield is 2.25 g.

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In the reaction Cal 2 (s)+Cl 2 (g) CaCl 2 (s)+l 2 (s) , what phases are the products in after the reaction ?

A.CaCl 2 is a liquid, and l2 is a gas

B. Both products are a liquid

C. Cal2 is a solid, CaCl2 is in aqueous solution

D. Both products are solids

Answers

Answer:

D

Explanation:

because the products are CACL2 AND I2 and both are solid

Gas is collected over water at 25 °C. The pressure in the container was 0.13 atm. Using a vapor pressure chart, what is the pressure of the dry gas?

Answers

Answer:

[tex]p_{gas}=0.0987atm[/tex]

Explanation:

Hello there!

In this case, according to this problem about partial pressures, we first use the Dalton's law in order to realize how the vapor pressure of water and the partial pressure of the gas contribute to the total pressure:

[tex]P_T=p_{H_2O}+p_{gas}[/tex]

Thus, since the vapor pressure of water at 25 °C is 0.0313 atm, the partial pressure of the gas turns out to be:

[tex]p_{gas}=P_T-p_{H_2O}\\\\p_{gas}=0.13atm-0.0313atm\\\\p_{gas}=0.0987atm[/tex]

Regards!

What do the small lines marked on the Meterstick represent?

Answers

The small lines marked on the Meterstick represents the measurement you make can be certain to the centimeter.

Centimeter is the metric unit of the measurement which is used for measuring the length of an object.

Meterstick is the measuring stick one meter long that is marked off in centimeters and usually millimeters. A meterstick is divided into 100 cm. The smallest lines on the meterstick are the centimeters which means that each measurement you make can be certain to the centimeter. It is used to measure the things in meters and centimeters. For example: Length of a table or the width of a bag can be measured by using a meterstick.

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The amount of atomic particles released by a radioactive material in a specific time is determined by strong and weak nuclear forces. strong and weak gravitational forces. attraction and repulsion caused by electric forces. attraction and repulsion caused by magnetic forces.

Answers

The amount of atomic particles released by a radioactive material in a specific time is  determined by strong and weak nuclear forces option- 1 is correct.

What exactly do you mean by radioactive materials?

Radioactive materials fall under the category of radionuclides, which are chemicals with unstable atomic nuclei. They adjust the nucleus to stabilize themselves (spontaneous fission, emission of alpha particles, or conversion of neutrons to protons or the reverse).

The amount of atomic particles released by a radioactive material over a given period of time depends on how quickly it decays.

The weak nuclear forces that exist between the nucleons of atomic particles control how quickly radioactive materials decay over time.

The nuclear forces can therefore be used to calculate the total number of atomic particles that a radioactive material releases in a given period of time (strong or weak).

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If the gauge pressure is 35.0 psi, and we assume the atmospheric pressure surrounding the tire is 1.00 atm, what is the total pressure of the gas in the tire

Answers

Pg denotes gauge pressure, which is related to absolute pressure as follows: Pa is the local atmospheric pressure, and pg is equal to p - pa.

An automobile tire gauge, for instance, reads 32.0 psi. 14.2 psi is the atmospheric pressure in the area. The gauge pressure equation states that gauge pressure equals the difference between absolute pressure and atmospheric pressure: P G = P P A, or PG=PPA. A tire pressure gauge, for example, monitors the pressure in the tire above ambient pressure. Gauge pressure is the pressure in particular items. Thus, gauge pressure plus atmospheric pressure add up to the total pressure, or absolute pressure: Pabs=Pg+Patm Pabs is the absolute pressure, Pg is the gauge pressure, and Patm is the atmospheric pressure. P abs = P g + P atm

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Draw the product (s) formed by heating the following compounds in basic ethanol.
EtOH
NaOEt

Answers

the product (s) formed by heating the following compounds in basic ethanol: EtOH and NaOEt is shown in the image.The reaction product is simpler because it is determined by the condition of the reagent and the catalyst or solvent.

there are many factors that determine the product as given. When alcoholic beverages (beer, wine, and spirits) are diluted, ethanol is present. It is used topically to prevent skin infections, in pharmaceutical preparations (such as rubbing compounds, lotions, tonics, and colognes), cosmetics, and perfumes. Ethanol, also referred to as ethyl alcohol, is a colourless, flammable liquid with a strong odour. It is the alcohol found in alcoholic beverages and employed as a solvent that is generated by fermentation. Alcohols are organic molecules made up of carbon, oxygen, and hydrogen atoms. When two carbons are present, the alcohol is referred to as ethanol (also known as ethyl alcohol).

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Mg + 2HCl --> MgCl2 + H2(g)

Assuming STP, how many moles of hydrogen gas did Carl and his partner collect if they collected 5. 6L?

Curious Carl and his lab partner were conducting a variety of experiments to produce gases: hydrogen, oxygen, and carbon dioxide. In one experiment, they added a piece of magnesium ribbon to 10 milliliters of hydrochloric acid. They observed bubbles being produced and did a variety of tests to identify the escaping gas; it proved to be hydrogen. The reaction is represented by the following equation.


A) 0. 250 moles

B) 2. 78 moles

C) 5. 60 moles

D) 11. 2 moles

Answers

5.60 moles of hydrogen gas did Carl and his partner collect if they collected 5. 6L.

Give a brief account on Moles ?

The mole, also called Avogadro's number, is a unit of measurement used in chemistry to express the amount of matter. It is defined as the number of entities (atoms, molecules, ions, etc.) in a given sample of matter. The number of mole entities is known as Avogadro's number and is approximately 6,022 x 10²³. Moles can also be used to represent the number of units of matter in a chemical reaction. For example, the equilibrium equation for the reaction of magnesium and hydrochloric acid is Mg + 2HCl → MgCl₂ + H₂. This equation shows that for every mole of magnesium, 2 moles of hydrochloric acid are required to produce 1 mole of magnesium chloride and 1 mole of hydrogen gas.

In summary, a mole is a unit of measurement used in chemistry to describe the amount of substance. It is defined as the number of units in a particular sample of matter and is known as Avogadro's number. It can be used to convert between the mass and number of units of matter, and to describe the number of units of matter in chemical reactions.

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07
This question is about elements.
Caesium is in Group 1 of the periodic table.
0 7
1
Explain what happens to caesium atoms and to oxygen atoms when caesium reacts
with oxygen to produce caesium oxide.
You should answer in terms of electrons.
[4 marks]

Answers

Answer:

Caesium will lose an electron and oxygen will gain an electron

The caecum is a chemical element of atomic number 55 and is a soft and golden alkali metal.

The electrons are transformed from the alkali metal to the oxygen meta that results in distinctions. They both combine to form a network of compounds with a distinct pattern. The cerium oxide is an inorganic compound of oxygen and the cesium reaction of both will form the ionic compound.

Learn more about the about elements, cesium is of the periodic table.

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What do we use a meter stick to measure?

Answers

A meterstick is used to measure things in meters and centimeters.

Meterstick is the measurement tool that measures one meter (hundred centimeters) and is used to measure the things in meters and centimeters. Metersticks are often rectangular and tin, and it is made up of wood or metal. Metal ones are often backed with a 'grippy' material such as cork, to improve the friction. Metersticks are usually divided within the lines for each millimeter (1000 per meter) and the numerical markings as per centimeter (100 per meter), with the numbers either in centi- or millimeter. It is a large ruler used for measuring the size or the distance using the metric scale.

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Definition of RMA in chemistry pls

Answers

Answer:

Molecule name: N--N-METHYL-N-PROP-2-YNYLAMINE

Formula: C13 H15 N

Molecular weight: 185.265 Da

RMA-3 (Rubidium Microporous Aluminosilicate-3) was hydrothermally synthesized from rubidium–aluminosilicate gels without using any organic or inorganic additives, and its structure determined by XRD Rietveld analysis was confirmed as a novel framework topology containing two 8-membered ring pore-openings with dimensions of 0.49 × 0.37 nm and 0.34 × 0.38 nm

Answer:

Hey there! Just wanted to let you know that the term RMA stands for "relative molecular mass" in chemistry. This is a measure of the size of a molecule, calculated by adding up the atomic weights of all the atoms in the molecule. For example, the relative molecular mass of water (H2O) is 18, because the atomic weight of hydrogen (H) is 1 and the atomic weight of oxygen (O) is 16. The relative molecular mass of a molecule is typically expressed in atomic mass units (amu) and can be useful for characterizing and comparing different substances, and predicting their physical and chemical properties.

Calculate the average weight of the dogs listed in the chart below.

Dog Weight

Molly 30 lbs.
Jessie 20 lbs.
Wallace 14 lbs.
Seiko 19 lbs.
Missy 10 lbs.
Skipper 21 lbs.​

Answers

Answer:

19

Explanation:

Once you add all the weights together, you end up with 114 then you divide it by how many dogs there are, 6. 114/6 = 19. The average is 19 lbs.

About what fraction of Earth’s surface is covered by water?
A:1/4
B:1/2
C:3/4
D:9/10

Answers

The answer is 1/2222

Select True or False: As opposed to chemical reaction, nuclear reactions have a significant (measureable) mass change relative to the mass of the reacting species.

Answers

The given statement is true as in the radioactive decay results in significant mass loss.

When uranium nuclei go through radioactive decay, a number of their mass is transformed into kinetic energy (the electricity of the transferring particles). This conversion of electricity is determined as a lack of mass. When it decays, a radionuclide transforms right into a one-of-a-kind atom - a decay product. The atoms maintain remodeling to new decay merchandise till they attain a solid country and are now not radioactive. This radioactivity is a part of earth's herbal device and is the principle purpose of warmth in the earth and the using pressure for earth's tectonic device which results in volcanoes, earthquakes and plate tectonics.

Thus, the given statement is true.

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NO links, please! I will be reporting and reporting all of the other links you answer

Answers

Answer:

This should be correct "The biggest advantage of sexual reproduction versus asexual reproduction is genetic diversity. When a single organism reproduces asexually it produces an exact copy of the parent organism."

Explanation:

sorry that I'm late but brainliest ....... please...................., maybe............... ?????

What numbers do I put on the right side?

Answers

The leftovers of [tex]C_2H_2[/tex] will be 6 moles while the leftover of [tex]O_2[/tex] will be zero.

Mole ratio of reactants

In the originally balanced equation of the reaction, 2 moles of [tex]C_2H_2[/tex] and 5 moles of [tex]O_2[/tex] react completely to produce 4 moles of [tex]CO_2[/tex] and 2 moles of [tex]H_2O[/tex]. This equation is balanced with no reactant left.

Now, 8 moles of [tex]C_2H_2[/tex] were made to react with 5 moles of [tex]O_2[/tex] in the second reaction. The mole ratio of the two reactants for complete reactions is 2:5. Thus, [tex]C_2H_2[/tex] has been supplied in excess.

Since only 5 moles of [tex]O_2[/tex] is available, only 2 moles of [tex]C_2H_2[/tex] will be consumed. Thus, 6 moles of [tex]C_2H_2[/tex] will be left while the oxygen will be completely consumed. That is, the amount of [tex]O_2[/tex] left would be zero.

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Which of the following is incorrect:
A. Protons contribute to the mass of the atom
B. Electrons have a negative charge
c. Neutrons are found in the nucleus of the atom
d. Electrons, neutrons and protons all have the same mass

Answers

Answer: D

Explanation:

electrons have no mass

What is the pH of a weak acid solution that has an [H+] of 2.1 x 10^-6 M?

Answers

Answer:

5.7 pH

Explanation:

To find pH when given [H+], you use this formula: pH = -log[H+]

-log * 2.1e-6 = 5.6778 = 5.7 pH

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