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General Chemistry 1: Mole Calculations

What is the molar mass of H2_2O ?

What is the molar mass of NaCl \cdot 2 H2_2O ?

Convert 8.30 x 1024^{24} atoms to moles of atoms. Use dimensional analysis and show how the units cancel to give the correct answer.

Convert 5 moles of carbon to grams.

Convert 15 grams of CO2_2 to moles of CO2_2

How many atoms are in 1.00 x 109^{-9} g of lead?

How many grams of iron are in a 15.0 g sample of Fe2_2O3_3 ? (molar mass of Fe2_2O3_3 = 159.69 g/mol)

A typical aspirin, C9_9H8_8O4_4 , tablet contains 0.36 g. How many molecules are present?

A sample of 45.8 g of MgSO4_4 \cdot 4 H2_2O contains how many moles of MgSO4_4 \cdot 4 H2_2O ?

How many moles of sodium ions, Na+^{+}, are there in 5.63 g of Na2_2SO4_4 ? (molar mass of Na2_2SO4_4 = 124.04 g/mol)

How many grams of silver are in 0.263 mol of Ag??

How many moles of nitrogen atoms are in 15.0 g of N2_2O5_5 (calculate with molar mass of N2_2O5_5 = 108.010 g/mol) ?