On-line calculations Quiz 11. Molarity and solution concentrations
What is the molarity of the solution formed by dissolving 20 g of sodium hydroxide (NaOH) in 1000 cm3 of water? (A
r's:
Na=23, O=16, H=1) [msc-1]
What is the molarity of the solution formed by dissolving 10 g of sodium hydroxide (NaOH) in 500 cm3 of water? (A
r's:
Na=23, O=16, H=1) [msc-2]
What is the molarity of the solution formed by dissolving 80 g of sodium hydroxide (NaOH) in 500 cm3 of water? (A
r's:
Na=23, O=16, H=1) [msc-3]
What is the molarity of the solution formed by dissolving 9.8 g of sulphuric acid (H2SO4) in 1000 cm3 of water? (A
r's:
H=1, S=32, O=16) [msc-4]
What is the molarity of the solution formed by dissolving 196 g of sulphuric acid (H2SO4) in 1000 cm3 of water? (A
r's:
H=1, S=32, O=16) [msc-5]
What is the molarity of the solution formed by dissolving 49 g of sulphuric acid (H2SO4) in 250 cm3 of water? (A
r's:
H=1, S=32, O=16) [msc-6]
What mass (g) of potassium hydroxide (KOH) is needed to make up 1000cm3 of a solution of concentration 1mol/dm3? (A
r's:
K=39, O=16, H=1) [msc-7]
What mass (g) of potassium hydroxide (KOH) is needed to make up 500cm3 of a solution of concentration 0.2mol/dm3? (A
r's:
K=39, O=16, H=1) [msc-8]
What mass (g) of potassium hydroxide (KOH) is needed to make up 500cm3 of a solution of concentration 4.0mol/dm3? (A
r's:
K=39, O=16, H=1) [msc-9]
What mass (g) of hydrogen chloride (HCl) is needed to make up 1000cm3 of a solution of concentration 1mol/dm3? (A
r's:
H=1, Cl=35.5) [msc-10]
What mass (g) of hydrogen chloride (HCl) is needed to make up 500cm3 of a solution of concentration 4mol/dm3? (A
r's:
H=1, Cl=35.5) [msc-11]
What mass (g) of hydrogen chloride (HCl) is needed to make up 500cm3 of a solution of concentration 0.2mol/dm3? (A
r's:
H=1, Cl=35.5) [msc-12]
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