Higher Chemistry Unit 1 Section 5 The Mole Multiple Choice Questions This is designed to be used by teachers to help students develop skills in answering multiple choice questions. Douglas Racey, Waid Academy, Anstruther, Fife, Scotland

Higher Chemistry Unit 2 - Section 5 The Mole Multiple Choice Questions 1. The number of moles of ions in 1 mol of copper(II)phosphate is A. 1 B. 2 C. 4 D. 5 D. Answer

Higher Chemistry Unit 2 - Section 5 The Mole Multiple Choice Questions 2. The Avogadro Constant is the same as the number of A. atoms in 24 g of carbon B. molecules in 16g of oxygen C. molecules in 2g of hydrogen D. ions in 1 litre of sodium chloride solution, concentration 1 moll-1 C. Answer

Higher Chemistry Unit 2 - Section 5 The Mole Multiple Choice Questions 3. What volume of oxygen, in litres, is required for the complete combustion of 1 litre of butane gas? (All volumes are measured under the same conditions of temperature and pressure) A. 1 B. 4 C. 6.5 D. 13 C. Answer

Higher Chemistry Unit 2 - Section 5 The Mole Multiple Choice Questions 4. Which of the following contains the largest number of molecules? A. 0.10g of hydrogen gas B. 0.17g of ammonia gas C. 0.32g of methane gas D. 0.35g of chlorine gas A. Answer

Higher Chemistry Unit 2 - Section 5 The Mole Multiple Choice Questions 5. It is now known that protons and neutrons are made up of smaller particles called quarks. Each proton and each neutron contains 3 quarks. What is the approximate number of quarks in 1g of carbon-12? A. 6 x 1023 B. 9 x 1023 C. 1.8 x 1024 D. 2.16 x 1025 A Answer

Higher Chemistry Unit 2 - Section 5 The Mole Multiple Choice Questions 6. How many atoms will be present in 11.2 litres of gaseous fluorine (molar volume 22.4 litres mol-1) A. 1.505 x 1023 B. 3.01 x 1023 C. 6.02 x 1023 D. 1.204 x 1024 C. Answer

Higher Chemistry Unit 2 - Section 5 The Mole Multiple Choice Questions 7. A new form of carbon has been discovered. It consists of a football-shaped molecule consisting of 60 carbon atoms. Approximately how many such molecules are present in 12g of this type of carbon? A. 1.0 x 1022 B. 1.2 x 1023 C. 6.0 x 1023 D. 3.6 x 1023 A. Answer

Higher Chemistry Unit 2 - Section 5 The Mole Multiple Choice Questions 8. The mass of 1 mol of sodium is 23g. What is the approximate mass of 1 sodium atom? A. 6.0 x 1023 g B. 6.0 x 10 -23 g C. 3.8 x 10 -23 g D. 3.8 x 10 -24 g C. Answer

Higher Chemistry Unit 2 - Section 5 The Mole Multiple Choice Questions 9. A metal (melting point 843oC, density 1.54 g/cm3) was obtained by electrolysis of its chloride (melting point 772oC, density 2.15 g/cm3). During the electrolysis the metal would occur as A. a solid on the surface of the electrolyte B. a liquid on the surface of the electrolyte C. a solid at the bottom of the electrolyte D. a liquid at the bottom of the electrolyte A. Answer

Higher Chemistry Unit 2 - Section 5 The Mole Multiple Choice Questions 10. A one carat diamond used in a ring contained approximately 1 x 1022 carbon atoms. What is the mass of the diamond? A. 0.1 g B. 0.2 g C. 1.0 g D. 1.2 g B. Answer