Chemistry F332 Part 2 3.0 / 5 based on 1 rating ? ChemistryASOCR Created by: Issy HaighCreated on: 09-05-13 19:55 Why is the balance of CO2 in the atmosphere/ocean NOT a dynamic equilibrium? It is not a closed system- there are other sources of CO2 1 of 20 Why does chloromethane not photodissociate in the troposphere? The UV radiation isn't of high enough energy to break it down 2 of 20 Name both types of intermolecular bonding that can form between chloromethane molecules Instantaneous dipole-induced dipole, and permanent dipole 3 of 20 What does a hydrogen atom need to be bonded to to form a hydrogen bond? Oxygen, fluorine or nitrogen 4 of 20 Why does chloromethane have a lower boiling point than water? The intermolecular bonds in water are stronger 5 of 20 Why does bromomethane have a higher boiling point than chloromethane? Intermolecular bonds in bromomethane are stronger, so they take more energy to break 6 of 20 Write the equation for the hydrolysis of chloromethane CH3Cl + H2O -> HCl + CH3OH 7 of 20 Which bond is more polar; C-Cl or C-Br? C-Cl is more polar because chlorine is more electronegative than bromine 8 of 20 Which bond is stronger; C-Cl or C-Br? C-Cl is stronger because it is smaller 9 of 20 Why does the hydrolysis of bromomethane occur more rapidly than the hydrolysis of chloromethane? The C-Br bond is weaker, so it will react faster 10 of 20 Name a type of pollution cause by sulfur dioxide in the atmosphere Acid rain 11 of 20 What is the oxidation state of sulfur in SO2? +4 12 of 20 What is the oxidation state of sulfur in SO4^2-? +6 13 of 20 What is the oxidation state of iodine in I2? 0 14 of 20 What is the oxidation state of iodine in I-? -1 15 of 20 What piece of equipment would be used to add aqueous iodine to a solution? Burette 16 of 20 How do you know when you have reached the end point of a titration of sulfuric acid with sodium hydroxide? The indicator would change colour 17 of 20 What is the name of this functional group; H-O-C=O? Carbonyl 18 of 20 What gives a molecule the ability to have E/Z isomers? No rotation around C=C, and each carbon has two non-identical groups attached 19 of 20 What conditions are need when you use a phosphoric acid catalyst? 340 degrees celsius, and 200 atmospheres of pressure 20 of 20
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