A student investigated the reaction between dilute sulfuric acid and sodium hydroxide solution.
The student found that 18.5 cm318.5\text{ cm}^318.5 cm3 of 0.400 mol/dm30.400\text{ mol/dm}^30.400 mol/dm3 dilute sulfuric acid (H2SO4\text{H}_2\text{SO}_4H2SO4) completely reacted with 20.0 cm320.0\text{ cm}^320.0 cm3 of sodium hydroxide (NaOH\text{NaOH}NaOH) solution.
The equation for the reaction is:
2NaOH+H2SO4→Na2SO4+2H2O2\text{NaOH} + \text{H}_2\text{SO}_4 \rightarrow \text{Na}_2\text{SO}_4 + 2\text{H}_2\text{O}2NaOH+H2SO4→Na2SO4+2H2O
Calculate the concentration of the sodium hydroxide solution in mol/dm3\text{mol/dm}^3mol/dm3 and in g/dm3\text{g/dm}^3g/dm3.
Relative atomic masses (ArA_rAr): H=1\text{H} = 1H=1, O=16\text{O} = 16O=16, Na=23\text{Na} = 23Na=23
Practise AQA GCSE Chemistry Reactions of acids with exam-style questions for Foundation and Higher tier. 43 questions covering Reactions of acids with metals, Neutralisation of acids and salt production, Soluble salts, The pH scale and neutralisation, Titrations (chemistry only), and Strong and weak acids (HT only), matched to the AQA GCSE Chemistry (8462) specification and written in Paper 1 and Paper 2 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.