N5 Chemistry- Formula and Reacting Quantites

Calculate the formula mass of CaCO₃

• 18

• 100

• 102

• 53.5

Balance this equation:

H₂ + Cl₂ ---> HCl

• It is balanced.

• H₂ + Cl₂ ---> 2HCl

• 3H₂ + Cl₂ ---> 6HCl

• H₂ + 3Cl₂ ---> 6HCl

What is the total number of atoms present in 5Na₃PO₄?

• 5

• 55

• 40

• 8

Calculate the formula mass of H₂O

• 18

• 100

• 102

• 53.5

Calculate the formula mass of potassium carbonate

• 18

• 100

• 102

• 53.5

Calculate the formula mass of ammonium chloride

• 18

• 100

• 102

• 53.5

Calculate the mass of one mole of C₆H₁₂O₆

• 180

• 150

• 138

• 120.5

Calculate the mass of one mole of (NH₄)₃SO₄

• 180

• 150

• 138

• 120.5

Calculate the mass of 0.25 mol of Mg(NO₃)₂

• 46g

• 37.13 g

• 46 kg

• 37.1 kg

Calculate the mass of 2 mol of sodium

• 46g

• 4.6g

• 46 kg

• 46 l