Chemical Process Calculation Questions and Answers – Concentration-I

This set of Chemical Process Calculation Multiple Choice Questions & Answers (MCQs) focuses on “Concentration-I”.

1. The quantity of solute per unit volume is __________
a) Mole
b) Concentration
c) Density
d) None of the mentioned
View Answer

2. Find the correct statement for ppm
a) For solids and liquids, it is mole ratio
b) For gases, it is mole ratio
c) It is mole ration for every phase of matter
d) It is mass ratio for every phase of matter
View Answer

3. The concentration of 0.02 M H2SO4 molecules in a solution where the ionization of H2SO4 is 30%.
a) 0.014
b) 0.003
c) 0.002
d) 0.005
View Answer

4. What is the weight fraction of N2 in a gas when it is liquefied? The gas contains 400 ppm of N2 in CO2.
a) 2.54×10-4
b) 3.54×10-4
c) 4.54×10-4
d) 5.54×10-4
View Answer

5. A student has two solution of a substance. Solution-1: 25M, 400mL and Solution-2: 30M, 300M. What is the molarity of the final solutions if these two solutions are mixed?
a) 27.14
b) 22.14
c) 14.22
d) 14.27
View Answer

6. What is the total hardness of water in mg/L if the concentration of Ca and Mg are 56.7 mg/L and 9.8 mg/L?
a) 182.1
b) 66.5
c) 133
d) 91.05
View Answer

7. What is the concentration of 36 grams of water occupying 1 m3 volume?
a) 1 mole / m3
b) 2 mole / m3
c) 11 mole / m3
d) 22 mole / m3
View Answer

8. What is the concentration (% m/v) of the solution that contains 20.0 g NaCl in 800.0 mL solution?
a) 5.00%
b) 2.00%
c) 0.200%
d) 2.50%
View Answer

9. What is the ppm concentration of 6.00 mL sample of solution that has 3.6 x 10-4 g of sodium ions?
a) 20
b) 40
c) 60
d) 80
View Answer

10. How many mL of 2.50% (m/v) NaOH solution would contain 3.50 g of NaOH?
a) 7
b) 14
c) 21
d) 28
View Answer

Sanfoundry Global Education & Learning Series – Chemical Process Calculation.
To practice all areas of Chemical Process Calculation, here is complete set of 1000+ Multiple Choice Questions and Answers.