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1.1 Formulae, equations and hazards

1.1 Formulae, equations and hazards

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Question 93

Dicarboxylic Acids Table

Table 1 shows information about some straight-chain dicarboxylic acids.

Dicarboxylic AcidMolecular FormulaCondensed Structural Formula
malonic acidC3H4O4\text{C}_3\text{H}_4\text{O}_4C3​H4​O4​HOOCCH2COOH\text{HOOCCH}_2\text{COOH}HOOCCH2​COOH
succinic acidC4H6O4\text{C}_4\text{H}_6\text{O}_4C4​H6​O4​HOOC(CH2)2COOH\text{HOOC(CH}_2)_2\text{COOH}HOOC(CH2​)2​COOH
glutaric acidC5H8O4\text{C}_5\text{H}_8\text{O}_4C5​H8​O4​HOOC(CH2)3COOH\text{HOOC(CH}_2)_3\text{COOH}HOOC(CH2​)3​COOH
adipic acidC6H10O4\text{C}_6\text{H}_{10}\text{O}_4C6​H10​O4​HOOC(CH2)4COOH\text{HOOC(CH}_2)_4\text{COOH}HOOC(CH2​)4​COOH

Using the information in Table 1, give the empirical formula of adipic acid.

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Markscheme

1.1 Formulae, equations and hazards Questions

  1. GCSE
  2. /Chemistry
  3. /1.1 Formulae, equations and hazards

230 exam-style questions on Edexcel GCSE Chemistry 1.1 Formulae, equations and hazards, covering 1.1.1 Formulae, word and balanced equations, 1.1.2 Balanced ionic equations, and 1.1.3 Hazard symbols and risk in practical work. Each one has a worked solution and a mark scheme showing where the marks go.

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