Molar conversions

Mole Ratios used for conversions are derived from:

• the molar mass of the reactants in the balanced chemical equation

• the coefficients of the balanced chemical equation

• the subscripts of the products in the balanced chemical equation

• the group number of each element in the balanced chemical equation

Mole Ratios used for conversions are derived from:

• the molar mass of the reactants in the balanced chemical equation

• the coefficients of the balanced chemical equation

• the subscripts of the products in the balanced chemical equation

• the group number of each element in the balanced chemical equation

The number 6.02 x 10²³, which is the number of particles found in a mole. 

• molar mass
• mole
• Avogadro's number
• hydrate

What is the mole ratio of Ba(OH)₂ to AlPO₄?

AlPO₄ + Ba(OH)₂ → Al(OH)₃ + Ba₃(PO₄)₂

• 3 mol Ba(OH)₂ / 2 mol AlPO₄

• 1 mol Ba(OH)₂/ 1 mol AlPO₄

• 2 mol Ba(OH)₂/ 3 mol AlPO₄

• 1 mol Ba(OH)₂/ 3 mol AlPO₄

What is the percent by mass of oxygen in MgO?

• 20%
• 40%
• 50%
• 60%

What is the percent by mass of magnesium in MgO?

• 20%
• 40%
• 50%
• 60%

Calculate the molar mass of propane (C₃H₈).

• 13 g/mol

• 44 g/mol

• 99 g/mol

Using the reaction below,

4Al + 3O₂ → 2Al₂O₃

How many moles of aluminum oxide are produced from 6 moles of oxygen?

• 8 mol

• 6 mol

• 4 mol

• 2 mol

How many molecules of sugar (C₆H₁₂O₆) are in a mole?

• 24 molecules
• 180 molecules
• 180 g
• 6.02 x 10²³ molecules

If an atom of Fluorine has an atomic mass of 19 amu, it has a Molar mass of ____

• 19 lbs.
• 19 kg
• How am I supposed to know?
• 19 g/mol