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Answered

d. both a & b
21. How many moles are there in 48 grams of Magnesium?
a. 1.85 mol Mg c. 1.90 mol Mg
b. 1.87 mol Mg d. 1.97 mol Mg
amefan​

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Answer:

Therefore, number of atoms in 48 g of Mg = 2 mol × 6.022×1023atoms/mol= 12.04×1023 atoms. Thus, 48 g of Mg is equivalent to 12.04×1023 atoms. Hence, option A is the correct answer. Note: It should be noted that molar mass is the mass of 1 mole of a substance in grams.

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