G11 Quantitative Chemistry

3.94 g of H₂SO₄ are dissolved in 200 cm³ of solution. What is the concentration of the solution?

• 19.7 mol.dm^-3

• 2.01 mol.dm^-3

• 0.201 mol.dm^-3

• 2.01 x 10^-2 mol.dm^-3

How many moles are there in 15 g of sodium chloride?

• 25 moles

• 26 moles

• 27 moles

• 28 moles

In the reaction 2H₂ + O₂ → 2H₂O, what is the mole ratio of hydrogen to water?

• 1 : 1

• 2 : 1

• 1 : 2

A student burns 1.50 mol C₃H₈ according to the following reaction:

C₃H₈ + 5O₂ → 3CO₂ + 4H₂O

How many grams of carbon dioxide are produced?

• 44.0 g

• 66.1 g

• 132 g

• 198 g

How many particles are in 13.5 grams of Beryllium?

• 1.5 particles
• 9 particles
• 4x10²³ particles
• 9x10²³ particles

How many grams are in 7.8 moles of NaCl?

• 476 grams

• 179 grams

• 456 grams

• 460 grams

Using the following equation:
Fe₂O₃(s) + 3H₂(g) → 2Fe(s) + 3H₂O(l)
How many moles of iron can be made from  6 moles H₂? 

• 4 moles Fe
• 6 moles Fe
• 9 moles Fe
• 2 moles Fe

Select all the statements that are true

• 1 mole of gas occupies 22.4 dm³

• 1 mole of gas contains 6.022 x 10²³ particles

• 1 mole of N₂ will take up more space than one mole of H₂

• 1 mole of N₂ will weigh more than one mole of H₂

What will the mass of 4.8 moles of hydrogen gas be?

• 4.8 g

• 9.6 g

• 3.2 g

• 19.2 g

The mass of sodium hydroxide required to make 10 cm³ solution of 0.2 mol.dm^-3 of sodium hydroxide is:

• 0.08 g

• 80 g

• 800 g

• 8 g