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Topic 1: Key concepts in chemistry
Quick questions on Relative formula mass, empirical formulae and reacting masses - Edexcel GCSE Chemistry
3short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.
What is q1?Show answer
Calculate the relative formula mass of (: Ca = 40, O = 16, H = 1). [2 marks]
What is q2?Show answer
A compound contains g of carbon and g of hydrogen. Find its empirical formula (: C = 12, H = 1). [3 marks]
What is q3?Show answer
Calculate the concentration in g/dm of g of solute in cm of solution. [2 marks]
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