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07-05-2020
Chemistry

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What is the molar it y of a solution of NaCl if 500.0 ml of solution contains 11.6 g of NaCl?

What is the molar it y of a solution of NaCl if 5000 ml of solution contains 116 g of NaCl class=

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SvetkaChem SvetkaChem

07-05-2020

Answer:

0.397 M

Explanation:

Molarity = number of mole solute/number of L solution

M(NaCl) = 23.0 +35.5 = 58.5 g/mol

11.6 g* 1 mol/58.5 g = 0.1983 mol NaCl

500.0 mL = 0.5000 L

0.1983 mol NaCl/0.5000 L solution = 0.397 mol/L = 0.397 M

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