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Class 12 Chemistry के इस tag से जुड़े questions। हर question के साथ chapter, topic, level और difficulty दी गई है।

Chemistry100 mL of 0.5 mol L−1 solution is diluted to 500 mL. How many moles of solute are present in 50 mL of the final solution?Class 12Chapter 01: Solutions2: Concentration MetricsLevel 8Medium ChemistryThe mass fraction of solute in a solution is 0.12. What is the mass percentage of the same solute?Class 12Chapter 01: Solutions2: Concentration MetricsLevel 3Easy ChemistryA solution contains 5 g solute and 95 g solvent. What are the mass percent and mass fraction of solute respectively?Class 12Chapter 01: Solutions2: Concentration MetricsLevel 4Easy ChemistryA 0.5 molal solution contains 0.25 mol solute. What is the mass of solvent in grams?Class 12Chapter 01: Solutions2: Concentration MetricsLevel 5Easy Chemistry20 mL is taken out from 100 mL of 0.5 mol L−1 solution and diluted again to 100 mL with water. What is the new molarity?Class 12Chapter 01: Solutions2: Concentration MetricsLevel 7Medium Chemistry200 mL of 0.1 mol L−1 solution and 300 mL of 0.3 mol L−1 solution of the same solute are mixed. What is the final molarity?Class 12Chapter 01: Solutions2: Concentration MetricsLevel 7Medium ChemistryAn aqueous solution contains 0.036 g glucose in 1 L solution. What is the approximate glucose concentration in ppm?Class 12Chapter 01: Solutions2: Concentration MetricsLevel 5Easy ChemistryHow many moles of total ionic particles are present in 400 mL of 0.25 mol L−1 calcium chloride solution, assuming complete ionisation?Class 12Chapter 01: Solutions2: Concentration MetricsLevel 9Hard ChemistryWhat is the approximate molality of a 40 percent by mass methanol solution? Molar mass of methanol is 32 g mol−1.Class 12Chapter 01: Solutions2: Concentration MetricsLevel 8Medium ChemistryWhat is the approximate mole ratio of ethanol to water in a 40 percent by mass ethanol solution? Molar mass of ethanol is 46 g mol−1.Class 12Chapter 01: Solutions2: Concentration MetricsLevel 8Medium ChemistryA 30 percent by mass nitric acid solution has density 1.18 g mL−1. Molar mass of nitric acid is 63 g mol−1. What is its approximate molarity?Class 12Chapter 01: Solutions2: Concentration MetricsLevel 8Medium ChemistryHow much water should be added to 200 mL of 0.2 mol L−1 solution to make its molarity 0.05 mol L−1?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 7Medium ChemistryIn what volume ratio should 1 mol L⁻¹ and 4 mol L⁻¹ solutions of the same solute be mixed to obtain a 2 mol L⁻¹ solution?Class 12Chapter 01: Solutions2: Concentration MetricsLevel 7Medium Chemistry50 mL of 5 mol L−1 acid is mixed with 100 mL of 2 mol L−1 acid. Assuming final volume is 150 mL, what is the final molarity?Class 12Chapter 01: Solutions2: Concentration MetricsLevel 7Medium ChemistryA 250 mL solution contains 0.005 g solute. If density of the solution is 1 g mL−1, what is the concentration in ppm?Class 12Chapter 01: Solutions2: Concentration MetricsLevel 7Medium ChemistryWhat is the approximate mole fraction of glucose in a 0.2 molal glucose solution?Class 12Chapter 01: Solutions2: Concentration MetricsLevel 8Medium ChemistryA 0.5 mol L⁻¹ glucose solution has density 1.04 g mL⁻¹. Molar mass of glucose is 180 g mol⁻¹. What is its approximate molality?Class 12Chapter 01: Solutions4: Vapour PressureLevel 10Hard ChemistryA 10 percent by mass sodium chloride solution has density 1.07 g mL⁻¹. Molar mass of sodium chloride is 58.5 g mol⁻¹. What is its approximate molarity?Class 12Chapter 01: Solutions2: Concentration MetricsLevel 8Medium ChemistryWhat is the approximate mass percentage of a 1 molal urea solution if molar mass of urea is 60 g mol⁻¹?Class 12Chapter 01: Solutions2: Concentration MetricsLevel 7Medium ChemistryA 2 mol L⁻¹ sodium hydroxide solution has density 1.08 g mL⁻¹. Molar mass of sodium hydroxide is 40 g mol⁻¹. What is its molality?Class 12Chapter 01: Solutions2: Concentration MetricsLevel 10Hard