Methods- Further Calcuations And Redox

Question 1

Reacting mass and volume

Answer 1

1. Equation
2. Moles of ‘known’
3. Moles of ‘u known’ (ratios)
4. Volume of ‘unknown’

Question 2

Redox reactions

Answer 2

1. Oxidation half equation
2. Reduction half equation
3. Full ionic equation

Question 3

Reacting quantiles and electrolysis

Answer 3

1. Moles of substance 1
2. Moles of electrons
3. Moles of substance 2
4. Mass/volume of substance 2

Question 4

Mass of elements with charge

Answer 4

1. Equation
2. Charge =current x time
3. Moles of electrons
4. Moles of substance
5. Mass of substance

Question 5

Calculating reacting mass

Answer 5

1. Write equation
2. Moles of ‘known’
3. Use equation ratios to deduce moles of ‘unknown’
4. Calculate mass of ‘unknown’

Question 6

Volume

Answer 6

Number of moles x 24 dm

Question 7

Charge

Answer 7

Current x time

Moles of electrons x 96500