Relative formula mass and moles

GCSE · Chemistry · Edexcel · CC1 — Key concepts in chemistry — atomic structure, periodic table, types of substance

Question

Edexcel Paper 1

Calculate the relative formula mass (Mᵣ) of each of the following. (Aᵣ: H=1, C=12, N=14, O=16, Na=23, S=32, Ca=40)

(a) H₂SO₄ (1 mark) (b) Ca(OH)₂ (1 mark) (c) Calculate the number of moles in 8.8 g of CO₂. (Mᵣ CO₂ = 44) (2 marks) (d) Calculate the mass of 0.25 mol of Na₂CO₃. (Mᵣ Na₂CO₃ = 106) (2 marks)

6 marks · take your time before peeking.

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Generated by TopMyGrade AI · cross-check official sources before relying on the mark-scheme phrasing.