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3 years ago

11

What is the molarity (M) of a solution with 2 mol of NaCl in 0.50 L of solution?

1 answer:

irinina [24]3 years ago

5 0

Answer:

The answer to your question is 4 M

Explanation:

Data

NaCl 2 moles

Volume = 0.5 l

Molarity = M

Process

1.- Write the formula of Molarity

$Molarity = \frac{number of moles}{volume (liters)}$

2.- Substitution

$Molarity = \frac{2 moles}{0.5 liters}$

3.- Simplification and result

Molarity = 4 M

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A solution of sodium chloride in water has a vapor pressure of 19.6 torr at 25°C. What is the mole fraction of NaCl in this solu

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Answer:

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Explanation:

we know that

$P_{sol}=\chi_{solvent}P^0_{solvent}$

where,

P sol - the vapor pressure of the solution

χ solvent - the mole fraction of the solvent

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