Moles

Question 1

Percentage mass for working mass in a reaction

Answer 1

The total mr of compound

Question 2

Moles equation

Answer 2

Moles = Mass
——
Mr

Question 3

What is moles

Answer 3

The amount of mass a substance has relative to it atomic mass

Question 4

Steps for working out mole equations

E.g. 6CO2 + 6H2O —> C6H12O6 + 6O2.

Answer 4

1) work out the mr of each compound
2) divide mass by the mr to get mol
3) divide by the smallest

Question 5

Percentage yield

Answer 5

Actual mass got
—————– X100
The expected

Question 6

Atom economy

Answer 6

All of the Mr of the reactants

Question 7

Concentration equation

Answer 7

Solution in (dm)

Question 8

Maniscus

Answer 8

Measure from bottom of the U shape

Question 9

Forming in a tritation

Answer 9

Salt and water

Question 10

Indacator in a tritation

Answer 10

Penophaline

Question 11

No. Of moles in gas (at RTP)

Answer 11

Vol of gas(Dm)
= ————–
24