Solutions Test ...

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,

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

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