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Molality

Class 11 Chemistry के इस tag से जुड़े questions। हर question के साथ chapter, topic, level और difficulty दी गई है।

ChemistryIf 10 g of a solute dissolved in 500 g of solvent produces a molality of 0.2 mol kg⁻¹, what is the molar mass of the solute?Class 11Chapter 01: SolutionsLevel 18EasyChemistryWhen 5 g of a nonelectrolyte is dissolved in 250 g of solvent, a 0.2 mol kg⁻¹ solution is formed. What is the molar mass of the substance?Class 11Chapter 01: SolutionsLevel 18EasyChemistryIf 5 g of a non-dissociated solute produces a molality of 0.25 m in 0.2 kg of solvent, what is the molar mass of the solute?Class 11Some Basic Concepts of ChemistryMole concept and molar massLevel 16EasyChemistryIf 0.2 mol of solute is dissolved in 500 g of solvent, what is the molality?Class 11Some Basic Concepts of ChemistryMole concept and molar massLevel 14EasyChemistryAqueous solutions of the same solute have molalities of 0.25 mol kg⁻¹ and 0.75 mol kg⁻¹. They are mixed using equal masses of water. What is the molality of the resulting solution?Class 11Chapter 01: SolutionsLevel 4MediumChemistryIn a 0.4 molal solution with water as solvent, how many moles of solute are present in 90 g water?Class 11Chapter 01: SolutionsLevel 4EasyChemistryWhat is the approximate mass percentage of sodium chloride in a 1.0 molal sodium chloride solution? Molar mass is 58.5 g per mol.Class 11Chapter 01: SolutionsLevel 4MediumChemistryA 25 percent by mass solution contains a solute of molar mass 50 g per mol and water as solvent. What is the approximate molality?Class 11Chapter 01: SolutionsLevel 4MediumChemistryWhat is the approximate mole fraction of glucose in a 2 molal aqueous glucose solution?Class 11Chapter 01: SolutionsLevel 8MediumChemistryA solution has solute mole fraction 0.02. If the solvent is water, what is the approximate molality?Class 11Chapter 01: SolutionsLevel 10HardChemistryWhy is the mole fraction of solute in a 1 molal aqueous solution around 0.0177?Class 11Some Basic Concepts of ChemistryMole concept and molar massLevel 4MediumChemistryIn an aqueous solution the mole fraction of solute is 0.01. What is the approximate molality?Class 11Some Basic Concepts of ChemistryMole concept and molar massLevel 5MediumChemistryA solution has molality 2. If the mass of solvent is 250 g what are the moles of solute?Class 11Some Basic Concepts of ChemistryMole concept and molar massLevel 2EasyChemistryA 15 percent by mass glucose solution is given. What is its approximate molality?Class 11Some Basic Concepts of ChemistryMole concept and molar massLevel 4MediumChemistryAn aqueous solution has molality 5. What is the approximate mole fraction of solute?Class 11Some Basic Concepts of ChemistryMole concept and molar massLevel 5MediumChemistry10 g solute is dissolved in 190 g water. If molar mass of solute is 50 what is the molality?Class 11Some Basic Concepts of ChemistryMole concept and molar massLevel 3MediumChemistryIn an aqueous solution the mole fraction of water is 0.90. What is the approximate molality of the solute?Class 11Some Basic Concepts of ChemistryMole concept and molar massLevel 5HardChemistryWhat is the approximate molality of a 68 percent by mass aqueous nitric acid solution?Class 11Some Basic Concepts of ChemistryMole concept and molar massLevel 6HardChemistryA 4 M sodium hydroxide solution has density 1.16 g mL−1. What is its approximate molality?Class 11Some Basic Concepts of ChemistryMole concept and molar massLevel 6HardChemistryA 3 molal glucose solution has density 1.15 g mL−1. What is its approximate molarity?Class 11Some Basic Concepts of ChemistryMole concept and molar massLevel 6Hard