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Look at the mass spectrum of a carbon compound - OCR Gateway - GCSE Chemistry - Question 1 - 2018 - Paper 1
Question 1
Look at the mass spectrum of a carbon compound. Relative abundance 100 80 60 40 20 0 10 20 30 40 50 60 m/z Which carbon compound is the mass... show full transcript
Worked Solution & Example Answer:Look at the mass spectrum of a carbon compound - OCR Gateway - GCSE Chemistry - Question 1 - 2018 - Paper 1
Step 1
Which carbon compound is the mass spectrum from?
Answer
To identify the carbon compound from the mass spectrum, we need to analyze the peaks shown in the m/z (mass-to-charge) ratio and match them with the molecular formula options provided. By comparing the provided formulas:
- C₂H₂ (molecular weight = 26 g/mol)
- C₂H₅⁺ (molecular weight = 29 g/mol)
- C₃H₇ (molecular weight = 41 g/mol)
- C₄H₁₀ (molecular weight = 58 g/mol)
We observe whether the significant peaks correspond to the expected mass of these compounds. The highest peak appears in the range close to 58, indicating that the compound is likely C₄H₁₀. Thus, the correct answer is D C₄H₁₀.