Boot Camp

Question 1

Moles

Answer 1

A shorthand way of comparing quantities of differently weighted elements. Moles = mass / Mr or Mass = Mr Moles

Question 2

Ar

Answer 2

Relative atomic mass - the mass number of an atom

Question 3

Mr

Answer 3

Relative molecular mass - the sum of the mass numbers of all the atoms in a molecule

Question 4

Law of mass conservation

Answer 4

In a closed system, the sum of the products equals the sum of the reactants: no mass is lost or gained

Question 5

Ionic equations

Answer 5

Equations (with state symbols) showing ions that change state in a reaction; spectator ions are ignored

Question 6

Percentage yield

Answer 6

Percentage yield is the amount of product made as a percentage of the theoretical total

Question 7

Atom Economy

Answer 7

The mass of the product you want as a percentage of the mass of all the products you have

Question 8

Factors affecting yield

Answer 8

Incomplete combustion; products deposited on the equipment; products escape into the air

Question 9

Avogadro constant

Answer 9

The number of atoms of Carbon in 12g of Carbon