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4 years ago

You dissolve 3 moles of NaCl into 12 L of water. What is the Molarity?

1 answer:

3 0

Molarity is moles over liter. When checking for molarity, before diving, make sure the units are correct. In this case, both units are moles and liters, so we can assume the molarity is 3/12, or 0.25 M

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Could someone help me with all of these questions. Also plz if you don't know the answer plz don't put something that isn't righ

densk [106]

Q3.) acidic
q4.)that the solution is acidic
q5.)that the solution is alkaline

3 0

4 years ago

A potato gun beautifully illustrates Law. As you decrease the volume of the air in between two pieces of potato, the

kati45 [8]

Answer: The law that illustrates this is Boyle's Law

Explanation:

Boyle's law: This law states that pressure of the gas is inversely proportional to the volume of the gas at constant temperature and number of moles.

Mathematically,

$P\propto \frac{1}{V}$ (at constant temperature and number of moles)

Charles' law: This law states that volume of the gas is directly proportional to the temperature of the gas at constant pressure and number of moles.

Mathematically,

$V\propto T$ (at constant pressure and number of moles)

Avogadro's law: This law states that volume of the gas is directly proportional to the number of moles of the gas at constant pressure and temperature.

Mathematically,

$V\propto n$ (at constant pressure and temperature)

So, when the volume of the air in the gun decreases, the pressure is increased. The inverse relationship between the volume and pressure of the gas is very well illustrated by Boyle's Law.

Hence, the law that illustrates this is Boyle's Law

8 0

4 years ago

Consider the reaction below. 2H2 + O2 mc015-1.jpg 2H2O How many moles of water are produced from 13.35 mol of oxygen?

Leokris [45]

Answer: 26.7 moles

Explanation: $2H_2+O_2\rightarrow 2H_2O$

As can be seen from the balanced chemical equation 2 moles of hydrogen combine with 1 mole of oxygen to give two moles of water.

1 mole of oxygen give = 2 moles of water.

Thus 13.35 moles of oxygen give= $\frac{2}{1}\times 13.35=26.7moles$ of water.

4 0

3 years ago

Read 2 more answers

Explain why the pbcl2 dissolved when water was added

lara [203]

PbCl2 would not dissolve because it is insoluble based on the solubility rules for substances that will dissolve in water. This compound would instead form a solid precipitate at the bottom of the container.

4 0

4 years ago

Calculate the molarity of a solution that contains 15.7g of caco3 dissolved in enough water to make 275 ml of solution

Iteru [2.4K]

0.570 M (note the capital M, this is molarity. Using m denotes molality. Molarity is represented by moles of solute over the liters of solution. In this problem we are given the mass of the solute and volume of solution. The calculations is follows: (15.7 g CaCO3/275 mL of solution) x (1 mole CaCO3/ 100.0869 g of CaCO3) x (1000 mL of solution/ 1 L of solution) = 0.570 M CaCo3.

7 0

3 years ago

You dissolve 3 moles of NaCl into 12 L of water. What is the Molarity?​

You dissolve 3 moles of NaCl into 12 L of water. What is the Molarity?