Which of the following has the greatest mass, in grams? A 1 atom of gold (Au) B 1.0 mol mercury (Hg) atoms C 2.0 mole of chlorine (Cl) atoms D 25 atoms of mercury (Hg)

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asked Jun 16, 2024 112k views

1 Answer

JoshMB · Answer 1 · 2024-06-22T01:58:00+0000

1.0 mol of mercury (Hg) atoms has the greatest mass of 200.59 grams.

The question asks which of the following has the greatest mass. To determine this, we need to calculate the mass of each option.

A 1 atom of gold (Au) has a molar mass of 196.97 g/mol. Therefore, the mass of 1 atom of gold is 196.97 g/mol.

1.0 mol of mercury (Hg) atoms has a molar mass of 200.59 g/mol. Therefore, the mass of 1.0 mol of mercury atoms is 200.59 g/mol.

2.0 mole of chlorine (Cl) atoms has a molar mass of 35.45 g/mol. Therefore, the mass of 2.0 mole of chlorine atoms is 70.90 g/mol.

25 atoms of mercury (Hg) have a molar mass of 200.59 g/mol. Therefore, the mass of 25 atoms of mercury is 5014.75 g/mol.

Comparing the masses, we can see that 1.0 mol of mercury atoms has the greatest mass with 200.59 grams.