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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।

ChemistryIn a 2 m urea solution, mass of water is 250 g. Molar mass of urea is 60 g mol−1. What is the mass of urea?Class 12Chapter 01: Solutions2: Concentration MetricsLevel 6MediumChemistryIn a 1 m glucose solution, mass of water is 500 g. Molar mass of glucose is 180 g mol−1. What is the mass of glucose?Class 12Chapter 01: Solutions2: Concentration MetricsLevel 6MediumChemistry27 g aluminium chloride is dissolved in 2 L solution. If its molar mass is 133.5 g mol−1, what is the approximate molarity?Class 12Chapter 01: Solutions2: Concentration MetricsLevel 6MediumChemistry10 g solute is dissolved in 90 g water. If molar mass is 50 g mol−1, what is the molality?Class 12Chapter 01: Solutions2: Concentration MetricsLevel 6MediumChemistryA student uses mass of solution instead of mass of solvent in the denominator while calculating molality. What will generally happen?Class 12Chapter 01: Solutions2: Concentration MetricsLevel 6MediumChemistryA water sample contains 12 mg nitrate in 2 L water. What is the approximate concentration in ppm?Class 12Chapter 01: Solutions2: Concentration MetricsLevel 6MediumChemistryA 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 8HardChemistryAn 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 5Easy

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