AQA Chemistry Paper 1- Quantitative Chemistry

What is the relative formula mass of CO₂?

• 44
• 32
• 16
• 56

Calculate the number of gold atoms in a 4 mole sample of gold.

• 2.41x10²⁴
• 3.01x10²³
• 4.82x10²⁴
• 6.02x10²³

Tags

NGSS.HS-PS1-7

Calculate the % composition by mass of oxygen present in H₂SO₄.

• 16.3%
• 65.25%
• 32.6%
• 57.14%

Mass of one mole of Mg(OH)₂

• 58g
• 42g
• 82g
• 41g

Tags

NGSS.HS-PS1-7

1 dm³ is equal to how many cm³ ?

• 100

• 500

• 1000

• 2000

A high mass of solute dissolved in a low volume of liquid would result in what type of solution?

• Low Concentration

• High Concentration

50g of sodium hydroxide is dissolved in water to make up 200cm³ . What is the concentration in dm³.

• 0.25 g/dm³

• 2.5 g/dm³

• 25 g/dm³

• 250 g/dm³