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The empirical formula of a compound is CH₂O - OCR Gateway - GCSE Chemistry - Question 12 - 2023 - Paper 3
Question 12
The empirical formula of a compound is CH₂O. The relative formula mass of the compound is 180.0. What is the molecular formula of the compound? Relative atomic ma... show full transcript
Worked Solution & Example Answer:The empirical formula of a compound is CH₂O - OCR Gateway - GCSE Chemistry - Question 12 - 2023 - Paper 3
Step 1
Calculate the molar mass of the empirical formula CH₂O
Answer
To find the molar mass of the empirical formula CH₂O, we sum the relative atomic masses of its components:
- For Carbon (C): 1 × 12.0 = 12.0
- For Hydrogen (H): 2 × 1.0 = 2.0
- For Oxygen (O): 1 × 16.0 = 16.0
Thus, the total molar mass is:
Step 2
Step 3