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Class 11 · Chemistry
→If the moles of solute and solvent in a solution are 2 and 3 respectively, what is the mole fraction of solute?
Class 11 · Chemistry
→0.1 mol glucose is dissolved in 90 g water. What is the mole fraction of water?
Class 11 · Chemistry
→Which statement about molarity and molality is correct?
Class 11 · Chemistry
→Which concentration term does not change with temperature?
Class 12 · Chemistry
→58.5 g sodium chloride is dissolved in 2 kg water. What is the molality?
Class 11 · Chemistry
→18 g glucose is dissolved in 500 g water. What is the molality of the solution?
Class 11 · Chemistry
→What volume of 2 mol L⁻¹ stock solution is needed to prepare 500 mL of 0.5 mol L⁻¹ solution?
Class 12 · Chemistry
→250 mL of a 0.5 mol L⁻¹ solution is diluted to 1 L. What is the new molarity?
Class 12 · Chemistry
→How many moles of glucose are present in 200 mL of a 0.25 mol L⁻¹ glucose solution?
Class 12 · Chemistry
→5.85 g sodium chloride is dissolved to make 500 mL of solution. What is the molarity?
Class 12 · Chemistry
→40 g sodium hydroxide is dissolved in water to make 2 L of solution. What is the molarity?
Class 12 · Chemistry
→In a binary solution, the mole fraction of solute is 0.2. What is the mole fraction of solvent?
Class 11 · Chemistry
→180 g glucose is dissolved in 90 g water. What is the mole fraction of glucose?
Class 11 · Chemistry
→What is the mole fraction of ethanol in a mixture of 18 g water and 46 g ethanol?
Class 11 · Chemistry
→A water sample contains 0.004 g impurity in 2 kg water. What is the concentration of impurity in ppm?
Class 11 · Chemistry
→Fluoride concentration in drinking water is 1.5 ppm. What is the approximate mass of fluoride in 2 L water if density of water is taken as 1 g per mL?
Class 12 · Chemistry
→5 g glucose is dissolved to make 250 mL of solution. What is the mass by volume percentage?
Class 11 · Chemistry
→If 2 g potassium chloride is dissolved to make 100 mL solution, what is the mass by volume percentage?
Class 11 · Chemistry
→40 mL methanol is used to make 250 mL solution. What is the volume percentage of methanol?
Class 11 · Chemistry
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