moles and mass

Which contains more atoms, a mole of silver atoms or a mole of gold atoms?

• mole of silver atoms

• mole of gold atoms

• they have the same number of atoms

Which has more mass, a mole of potassium or a mole of sodium?

• mole of potassium

• mole of sodium

• they have the same mass

Which has more atoms, one mole of iron or one mole of zinc?

• one mole of iron

• one mole of zinc

• they have the same number of atoms

Which has more mass, one mole of iron or one mole of zinc?

• one mole iron

• one mole zinc

• they have the same mass

Calculate the mass of 5.22 mol He

• 20.9 g He

• 1.30 g He

• 8.6 x 10^22 atoms He

• 1.64 x 10^25 atoms He

Calculate the mass of 0.0455 mol Ni

• 2.67 g Ni

• 7.75 x 10^-4 g Ni

• 2.7 x 10^22 atoms Ni

• 7.56 x 1021 atoms Ni

Convert 3.50 mol Li to g Li

• 24.3 g Li

• 0.501 g Li

• 2.11 x 10^24 atoms Li

• 5.81 atoms Li

Determine the mass in grams of 1.33 x 10^22 mol of Sb

• 1.62 x 10^24 g Sb

• 1.09 x 10^20 g Sb

• 8.01 x 10^45 atoms Sb

• 2.21 x 10^23 atoms Sb

Convert 7.65 g Co to moles of Co

• 451 g²/mol Co

• 0.130 mol Co

• 0.129808427 g Co

• 451 mol Co

Determine the mass in grams of 4.75 x 10¹⁴ mol Pt

• 9.27 x 10¹⁶ g Pt

• 9.27 x 10¹⁶ atoms Pt

• 2.43 x 10¹² g Pt

• 2.86 x 10³⁶ g Pt