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1 month ago

How many grams of solute are dissolved in 125.0 mL of 5.00 M NaCl (MM = 58.45)?

Chemistry

1 answer:

lorasvet [2.7K]1 month ago

5 0

Answer: 36.53g

Explanation:

To determine the mass of NaCl that dissolves in 1L of solution yielding 5M of NaCl:

Molarity = 5M

Molecular mass (MM) of NaCl = 58.45

Molarity = Mass concentration (g/L) / MM

Mass concentration (g/L) of NaCl = Molarity × MM

= 5 × 58.45 = 292.25g

Now, for 125mL (0.125L), the amount dissolving is determined:

292.25g of NaCl is found in 1L of solution;

Thus, Xg of NaCl dissolves in 0.125L, which is:

Xg of NaCl = 292.25 × 0.125 = 36.53g.

Hence, 36.53g of NaCl dissolves in 125mL of solution.

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