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]
1. 0.50
2. 0.25
3. 1.00
4. 2.00
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]
1. 1.00
2. 0.50
3. 0.25
4. 2.00
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]
1. 2
2. 1
3. 4
4. 8
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]
1. 10.0
2. 0.01
3. 1.0
4. 0.1
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]
1. 2.0
2. 0.5
3. 3.0
4. 1.5
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]
1. 0.4
2. 2.0
3. 0.5
4. 1.0
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]
1. 0.056
2. 0.56
3. 56
4. 560
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]
1. 11.2
2. 2.8
3. 0.56
4. 5.6
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]
1. 112
2. 56
3. 224
4. 28
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]
1. 73
2. 36.5
3. 0.036
4. 0.073
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]
1. 36.5
2. 146
3. 73
4. 292
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]
1. 7.30
2. 14.6
3. 1.83
4. 3.65

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On-line calculations Quiz 11. Molarity and solution concentrations

CLICK [?] and read any feedback e.g. an example worked for you. All GCSE Chemistry, Earth Science and Radioactivity Quizzes "Doc Brown's Chemistry Clinic" EMAIL query?comment, quote Q ref [msc-xx]) (01-06-09)