Answered

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What is the molarity of a 750.0 mL aqueous solution that contains 117 g of NaCl?

Sagot :

Answer:

2.67M

Explanation:

Given: volume of solution = 750.0 mL = 0.750 L Find: molarity

mass of solute = 117 g NaCl

= 58.4428 g/mol (Periodic Table)

Plan: Find the number of moles of solute from the molar mass, then calculate molarity.

Step 1: Find moles of NaCl.

Step 2: Calculate molarity.

Answer: 2.67 M

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