Chemical Process Calculation Questions and Answers – Concentration-II

This set of Chemical Process Calculation Questions and Answers focuses on “Concentration-II”.

1. What is the molarity of a solution made by diluting 500 mL of a 2.50 M solution to a final volume of 800 mL?
a) 0.5265 M
b) 1.5625 M
c) 2.5689 M
d) 3.4586 M
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2. What is the concentration of 44 grams of CO2 occupying 2 m3 volume?
a) 0.5 mole / m3
b) 0.4 mole / m3
c) 0.3 mole / m3
d) 0.2 mole / m3
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3. What is mass of the solute that is present in 50 mL of a 0.15 mol/L solution of NaCl?
a) 0.22
b) 0.44
c) 0.66
d) 0.88
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4. What is the concentration of 560 gm H2SO4 solution in 486 mL solution?
a) 11.75 mole / L
b) 1.152 gm / mL
c) Both a and b
d) Only b
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5. A 1000 ml solution has 0.25 gms of solute. What is the concentration(gm/L)?
a) 0.25
b) 2.5
c) 25
d) 250
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6. Which one is the most concentrated solution?
a) 20 g of NaOH in 100 mL of water
b) 150 g of NaOH in 200 mL of water
c) 180 g of NaOH in 300 mL of water
d) 250 g of NaOH in 600 mL of water
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7. How many gms of NaCl are required to prepare 2.5 L of 0.6 M solution?
a) 22
b) 44
c) 66
d) 88
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8. What is the mass fraction of Na in NaClO₃?
a) 0.216
b) 0.418
c) 0.625
d) 0.856
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9. What is the mole fraction of Cl in NaClO₃?
a) 0.2
b) 0.4
c) 0.6
d) 0.8
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10. What is the sum of the mass fraction and mole fraction of Oxygen in NaClO₃?
a) 1.05
b) 2.05
c) 3.05
d) 4.05
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To practice all areas of Chemical Process Calculation, here is complete set of 1000+ Multiple Choice Questions and Answers.