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3 years ago

How many grams of NaCI per kilogram of water are present in a 2.7 molal aqueous solution

Chemistry

1 answer:

navik [9.2K]3 years ago

5 0

Answer:

157.79 g

Explanation:

The definition of molality is:

molality = moles of solute / kilogram of solvent

This means that in a 2.7 molal solution, there are 2.7 moles of NaCl per kilogram of water.

So now we convert those 2.7 moles of NaCl to grams, using its molar mass:

2.7 mol * 58.44 g/mol = 157.79 g

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The answer is option A.

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3 years ago

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Salsk061 [2.6K]

Answer:

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Explanation:

Given that,

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3 years ago

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2 years ago

What is the perecentage yield of a reaction in which 200g PCl3 reacts with excess water to form 128g HCl according to the f.F re

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Answer:

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Explanation:

The theoretical yield of the reaction is the amount of product that would result if all the limiting reagent reacted. The theoretical yield is calculated using the balanced equation.

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3 years ago

How many grams of NaCI per kilogram of water are present in a 2.7 molal aqueous solution​

How many grams of NaCI per kilogram of water are present in a 2.7 molal aqueous solution