Empirical & Molecular Formulae | Study Planner | GCSE | Revision & Questions | Target Teach Tutors
In this video, we break down the concept of empirical and chemical formulae in chemistry with detailed practical examples to make understanding easy. Plus, we've included revision questions in the description to help you master this topic. All the key points for your GCSE Chemistry exam are covered, so watch till the end to get the most out of this video and ace your exams!
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Revision Questions and Answers:
Question 1:
A sample of a compound contains 1.2 g of magnesium and 3.2 g of oxygen. Determine the empirical formula of the compound.
Answer: MgO₄
Question - 2.
A compound contains 4.08g of carbon, 0.34g of hydrogen, and 2.72g of nitrogen. Calculate the empirical formula of the compound.
Ans: C₂H₂N
Question - 3:
A compound has a percent composition of 85.6% carbon, and 14.4% hydrogen, with a molar mass of 56g/mol. What is the molecular formula of the compound?
Ans: C4H8
Study hard!