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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।

ChemistryIf both moles of solute and mass of solvent are doubled in molality, what happens to molality?Class 12Chapter 01: Solutions2: Concentration MetricsLevel 4EasyChemistryIf two solutions have the same moles of solute but the first has half the volume of the second, how will the molarity of the first compare?Class 12Chapter 01: Solutions2: Concentration MetricsLevel 4EasyChemistryThe volume percentage is 25 percent and the volume of solute is 40 mL. What is the total volume of the solution?Class 12Chapter 01: Solutions2: Concentration MetricsLevel 5MediumChemistryA solution contains 20 g solute and its mass percentage is 10 percent. What is the total mass of the solution?Class 12Chapter 01: Solutions2: Concentration MetricsLevel 5MediumChemistryA student takes 500 mL as 500 L while calculating molarity. What will happen to the answer?Class 12Chapter 01: Solutions2: Concentration MetricsLevel 4EasyChemistryIn a binary solution, the mole fraction of solvent is 0.60 and total moles are 20. How many moles of solvent are present?Class 12Chapter 01: Solutions2: Concentration MetricsLevel 5EasyChemistryThe mole fraction of solute in a solution is 0.4. If total moles are 15, how many moles of solute are present?Class 12Chapter 01: Solutions2: Concentration MetricsLevel 5EasyChemistryWhy is molality considered more reliable than molarity when temperature changes?Class 12Chapter 01: Solutions2: Concentration MetricsLevel 4EasyChemistryThe molarity of a solution may decrease on heating. What is the most suitable reason?Class 12Chapter 01: Solutions2: Concentration MetricsLevel 4EasyChemistry400 mL of 0.5 M solution is diluted to 800 mL. What is the new molarity?Class 12Chapter 01: Solutions2: Concentration MetricsLevel 6MediumChemistryA 1 L solution contains 0.2 mole solute. If water is added to make the volume 2 L, what is the new molarity?Class 12Chapter 01: Solutions2: Concentration MetricsLevel 5EasyChemistry0.02 percent impurity is equal to how many ppm?Class 12Chapter 01: Solutions2: Concentration MetricsLevel 5MediumChemistryWhat value is obtained when 50 ppm is converted into percent?Class 12Chapter 01: Solutions2: Concentration MetricsLevel 5MediumChemistryA water sample contains 15 mg impurity in 3 kg water. What is the approximate concentration in ppm?Class 12Chapter 01: Solutions2: Concentration MetricsLevel 5MediumChemistryWhat mass of solute is present in 750 mL of a 2 percent mass-volume solution?Class 12Chapter 01: Solutions2: Concentration MetricsLevel 5EasyChemistryWhat volume of solute is present in 350 mL of a 10 percent volume by volume solution?Class 12Chapter 01: Solutions2: Concentration MetricsLevel 5EasyChemistryHow much solute is present in 400 g of a 5 percent mass by mass solution?Class 12Chapter 01: Solutions2: Concentration MetricsLevel 5EasyChemistryIn a 2 m solution, the mass of solvent is 250 g. How many moles of solute are present?Class 12Chapter 01: Solutions2: Concentration MetricsLevel 5MediumChemistryA solution has molarity 0.25 M and volume 800 mL. How many moles of solute are present?Class 12Chapter 01: Solutions2: Concentration MetricsLevel 5MediumChemistryIf 0.8 mole solute is dissolved in 400 g solvent, what is the molality?Class 12Chapter 01: Solutions2: Concentration MetricsLevel 5Medium