Mole Conversions with Mass

What is the molar mass of H₂O?

What is the unit that expresses mass?

Which is used to find the mole ratio?

How many moles of oxygen will be produced when 25g of KClO₃ is decomposed?

2KClO₃ ----> 2KCl + 3O₂

How many moles of O₂ are produced when 68g of Al₂O₃ decomposes?

2Al₂O₃ --------> 4Al + 3O₂

Using the balanced chemical equation:

Mg + 2 HCl --> MgCl₂ + H₂

How many grams of MgCl₂ is produced if 4.67 moles of HCl react?

Using the balanced chemical equation:

4NH₃ + 3O₂ --> 2N₂ + 6H₂O

Determine the amount of grams of N₂ is produced if 4.03 moles of NH₃ react?

Calculate the molar mass of propane (C₃H₈).

65 grams of glucose (C₆H₁₂O₆) react in a combustion reaction. How many grams of water (H₂O) are produced?

C₆H₁₂O₆ + 6 O₂ → 6 CO₂ + 6H₂O

From the reaction: B₂H₆ + 3O₂ -->2 HBO₂ + 2 H₂O

What mass of O₂ will be needed to burn 36.1 g of B₂H₆?

B₂H₆ = 27.68 g/mol