Concentration Terms

JEE Main Chemistry · Solutions · 30 questions, latest first

• What is the mole fraction of water in 10 % by weight (w / w) of aqueous urea solution? [Given: Molar mass of H, O, C and N are 1,…20265 April, Shift 1 · Q54
• At T(K), 100 g of 98 % H_2 SO_4(w / w) aqueous solution is mixed with 100 g of 49 % H_2 SO_4(w / w) aqueous solution. What is the…202622 January, Shift 2 · Q53
• Sea water, which can be considered as a 6 molar (6 M) solution of NaCl, has a density of 2 g mL^-1. The concentration of…20254 April, Shift 2 · Q73
• ' x ' g of NaCl is added to water in a beaker with a lid. The temperature of the system is raised from 1°C to 25°C. Which out of…20252 April, Shift 2 · Q51
• Concentrated nitric acid is labelled as 75\% by mass. The volume in mL of the solution which contains 30 g of nitric acid is…202528 January, Shift 2 · Q54
• The molarity of a 70\% (mass/mass) aqueous solution of a monobasic acid (X) is ____ × 10^-1 M(Nearest integer) [Given: Density of…202528 January, Shift 1 · Q71
• Density of 3 M NaCl solution is 1.25 g / mL. The molality of the solution is:202522 January, Shift 2 · Q55
• 20 mL of 2 M NaOH solution is added to 400 mL of 0.5 M NaOH solution. The final concentration of the solution is ____ × 10^-2 M.…202522 January, Shift 2 · Q71
• Molarity (M) of an aqueous solution containing x g of anhyd. CuSO_4 in 500 mL solution at 32°C is 2 × 10^-1 M. Its molality will…20249 April, Shift 1 · Q81
• A solution is prepared by adding 1 mole ethyl alcohol in 9 mole water. The mass percent of solute in the solution is ____…20248 April, Shift 2 · Q81
• Molality of an aqueous solution of urea is 4.44 m. Mole fraction of urea in solution is x × 10^-3. Value of x is ____. (Integer…20248 April, Shift 2 · Q85
• Molality (m) of 3 M aqueous solution of NaCl is: (Given: Density of solution =1.25 g mL^-1, Molar mass in g mol^-1: Na-23,…20246 April, Shift 2 · Q61
• The density of ' x ' M solution (' x ' molar) of NaOH is 1.12 g mL^-1, while in molality, the concentration of the solution is 3…20246 April, Shift 1 · Q61
• The Molarity (M) of an aqueous solution containing 5.85 g of NaCl in 500 mL water is: (Given: Molar Mass Na: 23 and Cl: 35.5…20244 April, Shift 1 · Q61
• The molarity of 1 L orthophosphoric acid (H_3 PO_4) having 70 % purity by weight (specific gravity 1.54 g cm^-3 ) is ____ M.…202431 January, Shift 2 · Q83
• If a substance ' A ' dissolves in solution of a mixture of ' B ' and ' C ' with their respective number of moles as n_A, n_B and…202430 January, Shift 2 · Q61
• The mass of sodium acetate (CH_3 COONa) required to prepare 250 mL of 0.35 M aqueous solution is ____ g. (Molar mass of CH_3…202430 January, Shift 1 · Q81
• Molality of 0.8 M H_2 SO_4 solution (density 1.06 g cm^-3 ) is ____ × 10^-3 m.202429 January, Shift 2 · Q85
• A solution of H_2 SO_4 is 31.4 % H_2 SO_4 by mass and has a density of 1.25 g / mL. The molarity of the H_2 SO_4 solution is ____…202429 January, Shift 1 · Q81
• The quantity which changes with temperature is:202427 January, Shift 2 · Q63
• Volume of 3 M NaOH (formula weight 40 g mol^-1 ) which can be prepared from 84 g of NaOH is ____ × 10^-1 dm^3.202427 January, Shift 2 · Q81
• A solution is prepared by adding 2 g of " X " to 1 mole of water. Mass percent of " X " in the solution is202311 April, Shift 2 · Q64
• A solution of sugar is obtained by mixing 200 g of its 25 % solution and 500 g of its 40 % solution (both by mass). The mass…202311 April, Shift 1 · Q81
• Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R Assertion A: 3.1500g of…202310 April, Shift 2 · Q80
• The molality of a 10 %(v / v) solution of di-bromine solution in CCl_4 (carbon tetrachloride) is ' x '. x= ____ × 10^-2 M.…20231 February, Shift 2 · Q51
• The density of 3 M solution of NaCl is 1.0 g mL^-1. Molality of the solution is ____ × 10^-2 m. (Nearest integer). Given: Molar…20231 February, Shift 1 · Q51
• Some amount of dichloromethane (CH_2 Cl_2) is added to 671.141 mL of chloroform (CHCl_3) to prepare 2.6 × 10^-3 M solution of…202330 January, Shift 1 · Q51
• What is the mass ratio of ethylene glycol (C_2 H_6 O_2., molar mass.=62 g / mol) required for making 500 g of 0.25 molal aqueous…202325 January, Shift 2 · Q31
• The number of units, which are used to express concentration of solutions from the following is ____ Mass percent, Mole, Mole…202324 January, Shift 2 · Q51
• 5 g of NaOH was dissolved in deionized water to prepare a 450 mL stock solution. What volume (in mL) of this solution would be…202324 January, Shift 1 · Q51