Be sure to answer all parts. What is the mass in grams of each quantity of...
Be sure to answer all parts. What is the mass in grams of each quantity of lactic acid (C3H6O3, molar mass 90.08 g/mol), the compound responsible for the aching feeling of tired muscles during vigorous exercise? a. 8.5 × 1024 molecules × 10 g b. 6.93 × 1023 molecules
Homework Answers
90.08 gram in 1 mole.
In 1 mole , number of molecules = 6.023 * 10^23
So number of molecules in 90.08 gram = 6.023 * 10^23
Number of molecules in 1 gram = 6.023 * 10^23 / 90
= 0.067 * 10^23 = 6.7* 10^21 molecules
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