Mole Calculation

How many molecules are in 6 mole of H₂SO₄?

• 6.02x10²³

• 6.02x10¹³⁸

• 5.90x10²⁵

• 3.61x10²⁴

A bag of fertiliser contains 14.52 kg of ammonium nitrate (NH₄NO₃). Calculate the number of moles of ammonium nitrate in the bag of fertiliser.

_{Give your answer to 1d.p}

An aspirin tablet contains 300 mg of acetylsalicylic acid. Calculate the number of moles of acetylsalicylic acid in one aspirin tablet. (Relative formula mass (M_r) of acetylsalicylic acid = 180)

_{Give your answer to 3s.f}

How many moles in 478.5g of CuSO₄?

• 18 g

• 36 g

• 72 g

• 144 g

If you have 3 moles of sodium chloride (NaCl), how many formula units do you have?

How many atoms are in 2 moles of helium (He)?

How many moles in 510g of Al₂O₃?

A lump of MgO consists of 100 moles. What is the mass in grams?

Potassium hydroxide (KOH) powder has 0.005 moles. What is the mass in grams? _{Give your answer to 2d.p}