Quantitative Chemistry (P1)

Question 1

RFM formula

Answer 1

Multiply the atomic mass of each value by the small number after it and add them (NOT THE BIG NUMBERS BEFORE)

Question 2

Percentage mass of element in that compound

Answer 2

Atomic mass of element in compound
————————————————- x100
Total atomic mass of compound

Question 3

Moles formula

Answer 3

Mass/RFM

Mass= moles * RFM
RFM= mass * moles

Question 4

How many cm3 in a dm3?

Answer 4

1000

Question 5

How many dm3 in 1m3?

Answer 5

1000

Question 6

What number represents moles?

Answer 6

The big number before the formula

Question 7

How to work out the limiting factor?

Answer 7

The one which will run out first based on the moles you have and the moles needed

Question 8

Atom economy

Answer 8

RFM if desired products/RFM of all products * 100

Question 9

Percentage yield

Answer 9

Mass of product actually made/maximum theoretical mass of product * 100

Question 10

Moles in a gas

Answer 10

Volume in dm3 = moles x 24

Question 11

1 mole of any gas at room temperature and pressure

Answer 11

24dm3

Question 12

Particles in 1 mol

Answer 12

6.022 times 10 to the 23

Question 13

How much in a mole of any gas

Answer 13

24 dm3

Question 14

Concentration (moles)

Answer 14

Moles/volume in dm3

Question 14

Concentration (grams)

Answer 14

Mass/ volume in dm3