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defon
2 years ago
15

What is the molarity of 20g of KNO, in 250 mL of water?

Chemistry
1 answer:
Rzqust [24]2 years ago
7 0

Answer:

should be 2M

Explanation:

:)

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3 years ago
In the laboratory you are asked to make a 0.565 m sodium bromide solution using 315 grams of water. How many grams of sodium bro
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Answer : The mass of sodium bromide added should be, 18.3 grams.

Explanation :

Molality : It is defined as the number of moles of solute present in kilograms of solvent.

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Molality=\frac{\text{Mass of solute}\times 1000}{\text{Molar mass of solute}\times \text{Mass of solvent}}

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Given:

Molality of NaBr = 0.565 mol/kg

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Now put all the given values in the above formula, we get:

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