What is the molarity of 250 mL of a solution containing 8.3 g of sodium chloride?...

Question

Question

Answer 1

Answer #1

molarity = 0.57 M

Explanation

Given : mass of NaCl = 8.3 g

moles of NaCl = (mass of NaCl) / (molar mass of NaCl)

moles of NaCl = (8.3 g) / (58.44 g/mol)

moles of NaCl = 0.142 mol

molarity of NaCl = (moles of NaCl) / (volume of solution in Liter)

molarity of NaCl = (0.142 mol) / (0.250 L)

molarity of NaCl = 0.57 M

Answer 2

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