Concentrations calculations

1 A molar solution is one which contains :­Choose one:­

a)     1 molecule of hydrogen per cm3 of solution.

b)     1 molecule of hydrogen per dm3 of water.

c)      1 mole of solute in 1 dm3 of solvent.

d)     1 mole of solute in 1 dm3 of solution.

e)     1 mole of solute in 1 cm3 of solution.

2) How many moles of the solute is in the following solutions?

a)     1000cm3 of 0.1M silver nitrate solution.

b)     250cm3 of 0.1M potassium dichromate solution.

c)      250cm3 of 0.1M sodium chloride solution.

d)     10cm3 of 2M sodium chloride solution.

e)     12.2cm3 of 1.56M nitric acid.

f)        12.2cm3 of 1.56M sulphuric acid.

3) What is the Concentration of :­

a)     1 mole of AgNO3 in 1000cm3 of solution?

b)     2 moles of AgNO3 in 250 cm3 of solution?

c)     0.5 moles of NaCl in 250 cm3 of Solution?

d)     6 moles of KMnO4 in 2 dm3 of solution?

e)     4 moles of Na2S2O3.5H2O in 250 cm3 of solution?

f)      2 moles of CuSO4.5H2O in 250 cm3 of solution?

4) What is the Concentration of :­

a)     1.7g of AgNO3 in 1000cm3 of solution?

b)     0.425g of AgNO3 in 250 cm3 of solution?

c)      5.85g of NaCl in 250 cm3 of Solution?

d)     3.16g of KMnO4 in 2 dm3 of solution?

e)     6.2g of Na2S2O3.5H2O in 250 cm3 of solution?

f)        5.62g of CuSO4.5H2O in 250 cm3 of solution?

5) What mass of each of the following is dissolved in 250 cm3 of 0.1M solution? (2dp)

a) AgNO3       b) HCI             c) H2SO4        d) Sodium hydroxide            e) potassium manganate (VII)