965 Grams of an Unknown Substance Were Diluted with Water

question 23

Multiple Choice

96.5 grams of an unknown substance were diluted with water in a 1.000 L volumetric flask. It was determined that the concentration of the substance was 1.22 M. What is the molar mass of the unknown substance?

• A) 117 g·mol^-1
• B) 79.1 g·mol^-1
• C) 1.26×10^-2 g·mol^-1
• D) 65.4 g·mol^-1

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Definitions:

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