Different Methods of Expressing Concentration Solutions - Free MCQ Practice

Only One Option Correct Type
This section contains 10 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONLY ONE is correct

Which of the following concentration factors is affected by change in temperature?

6.02 x10²⁰ molecules of urea are present in 100 mL of its solution. The concentration of urea solution is (N₀ = 6.02 x 10²³ mol^-1)

[AIEEE 2004]

Glucose solution is one molal. Glucose present in 1 kg glucose solution is

The molality of a urea solution in which 0.0100 g of urea (NH₂CONH₂) is added to 0.300 dm³ of water at STP is

[AIEEE 2011]

A solution that is 20% ethanol by volume is found to have a density of 0.977 g/mL. Density of ethanol is 0.789 g/mL. Thus, mass per cent of ethanol solution is

A solution of NH₄CI is prepared by dissolving 95 g of NH₄CI in 200 g of H₂O at 60° C. What is mass per cent when the solution is cooled to 20° C based on this

Commercial concentrated nitric acid is 15.6 M. To prepare 10 L of 6.0 M nitric acid from it,

Mole fraction of C3H5(OH)3 in a solution of 36 gm of water and 46 gm of glycerine is 

AgNO₃ sample is 85% by mass. To prepare 125 mL of 0.05 M AgNO₃ solution, AgNO₃ sample required is

Hardness of a water sample is 200 ppm CaCO₃, Thus, molarity of CaCO₃ is

100 mL of aqueous solution of 0.01 M CaCI₂ is evaporated to dryness when 0.15 g of residue is obtained. Thus, impurity present is

At 25 ° C, the density of 18 MH₂SO₄ is 1.8 g cm³. Thus, mass percentage of H₂SO₄ in aqueous solution is

Laboratory ammonia is 14.8 M NH₃(ag)with a density of 0.8980 g/mL. Mole fraction of NH₃ in this solution is

An aqueous solution is 34% H₃P0₄ by mass and has density 1.209 g mL ^-1 Molarity (I), molality (II) and normality (III) respectively, are

If one assumes the volumes are additive, what is  in a solution obtained by mixing 275 mL of 0.200 M KN0₃, 325 mL of 0.40 M Mg(N0₃)₂ and 400 mL H₂0?

How many grams of water would you add to 1.38 moles of CH₃OH in 1 kg water to reduce the molality to 1.00 molal CH₃OH(aq) ?

Three solutions have been provided.

I. 3 g HCI in 1 kg H₂0.
II. 2 L HCI(g) and 1 L H₂0 at room temperature.
III. Aqueous solution of HCI with

Solutions containing same number of moles of HCI is/are

Which of the following aqueous solutions has the highest concentration of Na⁺?

pH of Ba(OH)₂ solution is 12. Number of millimoles present in 100 mL of Ba(OH)₂ solution is

We have
I. 25 mL of 1 M NaOH
II. 10 mL of 0.50 M NaCI
On mixing the two solutions, molar concentrations of Na+, OH^- and Cl^- respectively, are

A ‘100 proof solution of ethanol in water consists of 50.0 mL of C₂H₅OH(/)and 50.0 mL of H₂0 (/), mixed at 16 °C . Given,
Density of H₂0 = 1 g mL^-1
Density of C₂H,OH = 0.7939 gmL^-1
Density mixture = 0.9344 g mL^-1
Volume of the solution is

How many grams of Mgl₂ must be added to 250 mL of 0.0876 M Kl to produce a solution with [l^-] = 0.10 M?

An aqueous solution is 6% methanol, CH₃OH, by mass with d = 0.988 g mL^-1. Thus, molarity of CH₃OH in this solution is

Matching List Type
Choices for the correct combination of elements from Column I and Column II are given as options (a), (b), (c) and (d), out of which one is correct

An ethanol-water solution is prepared by dissolving 10.00 mL o f ethanol (C₂H₅OH, d = 0.789 g mL^-1) in a sufficient volume o f w ater to produce 100 mL of solution with a density, d = 0.982 g mL^-1. Match the concentration term in Column I with its value in Column II and select the answer from the code

One or More than One Options Correct Type
This section contains 2 multiple type questions. Each question has 4 choices (a), (b), (c) and (d), out of which ONE or MORE THAN ONE are correct.
 1 kg of aqueous solution has 0.40 kg NaOH. Thus, this solution is

Mole fraction of ethanol in ethanol-water solution is 0.25. Thus, this solution is

Comprehension Type

This section contains a passage describing theory, experiments, data, etc. Two questions related to the paragraph have been given. Each question has only one correct answer out of the given 4 options (a), (b), (c) and (d)

Passage

A handbook gives the concentration of water in a 2.772 M aqueous solution of NaOH as 998.0 g L^-1.

Q. Molality of solution is

Comprehension Type

This section contains a passage describing theory, experiments, data, etc. Two questions related to the paragraph have been given. Each question has only one correct answer out of the given 4 options (a), (b), (c) and (d)
 

Passage

A handbook gives the concentration of water in a 2.772 M aqueous solution of NaOH as 998.0 g L ^-1.

Q.

Molality of solution is

One Integer Value Correct Type
This section contains 1 questions, when worked out will result in an integer value from 0 to 9 (both inclusive)

Q. Certain brine solution has 3.87% NaCI by mass with density 1.036 g mL^-1. How many millilitre of this solution should be evaporated to obtain 0.32 g of NaCI?

A 5.2 molal aqueous solution of methyl alcohol (CH₃OH) is supplied. What is the mole fraction of methyl alcohol in the solution?