Stoichiometry questions and answers (Page 3) Question 1 Copper reacts with concentrated nitric acid as shown by the equation below: Cu(s) + 4HNO3(aq) → Cu(NO3)2(aq) + 2NO2(g) + 2H2O(l) Suggest…
Chemistry calculations (O level) This post is about answering O level chemistry calculations questions which are part of stoichiometry. To fully understand these calculations you should be familiar with: how…
Stoichiometry Questions and Answers(Page 2) Question 1 Sodium sulphate has the following composition by mass: sodium 32.4%, sulphur 22.5% and oxygen 45.1%. What is its empirical formula? Solution 1 SodiumSulphurOxygen…
Stoichiometry Questions and Answers (Page 1) Use the values of Ar which follow to answer the questions below. [H = 1; C = 12; N = 14; O = 16;…