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Concentration Metrics

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

ChemistryA dilute aqueous solution contains calcium ions at 40 mg L−1. Approximately how many ppm is this?Class 12Chapter 01: Solutions2: Concentration MetricsLevel 5EasyChemistry200 mL of 0.5 M solution and 300 mL of 1.5 M solution are mixed. Total volume is additive. What is the final molarity?Class 12Chapter 01: Solutions2: Concentration MetricsLevel 8HardChemistry100 mL of 1 M solution and 200 mL of 3 M solution are mixed. Assume volumes are additive. What is the molarity of the mixture?Class 12Chapter 01: Solutions2: Concentration MetricsLevel 8HardChemistry150 mL of a 0.4 M solution is diluted with water to 600 mL. What is the new molarity?Class 12Chapter 01: Solutions2: Concentration MetricsLevel 6MediumChemistryA solution is 2 M. Its 200 mL portion is diluted to 500 mL. What is the new molarity?Class 12Chapter 01: Solutions2: Concentration MetricsLevel 6MediumChemistryA 20% mass-by-mass sodium chloride solution has 200 g solvent. Molar mass is 58.5 g mol−1. What is the approximate molality?Class 12Chapter 01: Solutions2: Concentration MetricsLevel 8HardChemistryIn a 25% mass-by-mass glucose solution, solvent mass is 100 g. Molar mass of glucose is 180 g mol−1. What is the approximate molality?Class 12Chapter 01: Solutions2: Concentration MetricsLevel 8HardChemistryA 10% mass-by-mass urea solution has density 1.08 g mL−1. The molar mass of urea is 60 g mol−1. What is its approximate molarity?Class 12Chapter 01: Solutions2: Concentration MetricsLevel 8HardChemistryA solution has density 1.2 g mL⁻¹ and contains 20% solute by mass. If the solute molar mass is 60 g mol⁻¹, what is the molarity?Class 12Chapter 01: Solutions2: Concentration MetricsLevel 2HardChemistryAn aqueous solution contains 10 mg solute in 2 L solution. Assuming density is 1 g mL−1, what is the concentration in ppm?Class 12Chapter 01: Solutions2: Concentration MetricsLevel 6MediumChemistry50 mL ethanol is used to make 200 mL solution. If it is diluted to 400 mL, what is the new volume percentage of ethanol?Class 12Chapter 01: Solutions2: Concentration MetricsLevel 6MediumChemistryA solution has 20 mass percent solute. If total solution mass is 150 g, what is the mass of solvent?Class 12Chapter 01: Solutions2: Concentration MetricsLevel 5EasyChemistryIf 1 L solution has mass 1200 g and contains 120 g solute, what is the mass percentage?Class 12Chapter 01: Solutions2: Concentration MetricsLevel 4EasyChemistryWhat mass of glucose is required for 1 kg water in a 0.5 molal solution?Class 12Chapter 01: Solutions2: Concentration MetricsLevel 6MediumChemistryIn a 2 molal solution, the mass of solvent is 250 g. How many moles of solute are present?Class 12Chapter 01: Solutions2: Concentration MetricsLevel 5EasyChemistry100 mL of a 1.2 mol L−1 solution is diluted to 300 mL. What is the final molarity?Class 12Chapter 01: Solutions2: Concentration MetricsLevel 6MediumChemistry0.30 mol solute is dissolved to make 600 mL solution. What is the molarity?Class 12Chapter 01: Solutions2: Concentration MetricsLevel 5EasyChemistryHow many moles of solute are present in 750 mL of a 0.4 mol L−1 solution?Class 12Chapter 01: Solutions2: Concentration MetricsLevel 5EasyChemistryIn a solution, the mole ratio of solute to solvent is 1:4. What is the mole fraction of solute?Class 12Chapter 01: Solutions2: Concentration MetricsLevel 5EasyChemistryTo prepare a 0.4 molal glucose solution, 0.2 mol glucose should be dissolved in how many grams of water?Class 12Chapter 01: Solutions2: Concentration MetricsLevel 4Medium