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Molality

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

ChemistryWhich relation is correct for elevation in boiling point?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 12MediumChemistryIf K_f = 1.8 and m = 1, what is ΔT_f?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 10EasyChemistryIf Kf and molality are known, what can be calculated?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 10EasyChemistryIf Kb and molality are known, which quantity can be calculated?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 10EasyChemistryIf the molality of a solution is increased, what happens to elevation in boiling point?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 10EasyChemistryWhy is molality used in boiling point and freezing point formulas?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 10EasyChemistryWhich relation is correct for depression in the freezing point?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 10EasyChemistryA 0.5 molal solution contains 0.25 mol solute. What is the mass of solvent in grams?Class 12Chapter 01: Solutions2: Concentration MetricsLevel 5EasyChemistryWhat is the approximate molality of a 40 percent by mass methanol solution? Molar mass of methanol is 32 g mol−1.Class 12Chapter 01: Solutions2: Concentration MetricsLevel 8MediumChemistryWhat is the approximate mole fraction of glucose in a 0.2 molal glucose solution?Class 12Chapter 01: Solutions2: Concentration MetricsLevel 8MediumChemistryA 0.5 mol L⁻¹ glucose solution has density 1.04 g mL⁻¹. Molar mass of glucose is 180 g mol⁻¹. What is its approximate molality?Class 12Chapter 01: Solutions4: Vapour PressureLevel 10HardChemistryWhat is the approximate mass percentage of a 1 molal urea solution if molar mass of urea is 60 g mol⁻¹?Class 12Chapter 01: Solutions2: Concentration MetricsLevel 7MediumChemistryA solution contains 0.5 mol solute and 200 g solvent. What is the molality?Class 12Chapter 01: Solutions2: Concentration MetricsLevel 4EasyChemistryWhat is the approximate mass percent of sodium chloride in a 2 molal sodium chloride solution?Class 12Chapter 01: Solutions2: Concentration MetricsLevel 8MediumChemistryA solution is 5 percent by mass. If molar mass of solute is 50 g mol−1 and the solvent is water, what is the approximate molality?Class 12Chapter 01: Solutions2: Concentration MetricsLevel 7MediumChemistryIn 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 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 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 8Hard

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