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worty [1.4K]
3 years ago
6

How many moles of KCl are in 2 L of 2.5 M KCl solution?

Chemistry
1 answer:
beks73 [17]3 years ago
3 0
2.5LX2 M=5 moles

As Molarity X Volume= Total Number of Moles
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How many grams of nacl are in 250 g of a 15.0% (by weight) solution?
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Answer: -

37.5 g of NaCl are in 250 g of a 15.0% (by weight) solution.

Explanation: -

Total mass = 250 g

Percentage of NaCl = 15.0 %

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Thus \frac{15}{100} = \frac{Number of grams of NaCl present}{250g}

Number of grams of NaCl present = \frac{15 x 250g}{100}

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