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Class 12 · Chemistry
→Which pair of quantities is sufficient to calculate the molar mass of an unknown solute directly?
Class 12 · Chemistry
→In a very dilute solution with a very small solute mole fraction, why can molar mass still be determined?
Class 12 · Chemistry
→In molar-mass determination by relative lowering of vapour pressure, which measured quantity is directly related to the mole fraction of a non-volatile solute?
Class 12 · Chemistry
→If 20 g of a solute corresponds to 0.2 mol, what is its molar mass?
Class 12 · Chemistry
→If a 0.2 m solution is prepared using 1 kg of solvent, how many moles of solute are present?
Class 12 · Chemistry
→In which method is it most important to express the mass of the solvent in kilograms?
Class 12 · Chemistry
→In which method is it most directly necessary to express the solution volume in litres?
Class 11 · Chemistry
→A 0.010 M solution has a volume of 1 L and contains 1.8 g of solute. What is the molar mass of the solute?
Class 12 · Chemistry
→If π = 0.246 atm, R = 0.082 L atm mol⁻¹ K⁻¹, and T = 300 K, what is the molarity of a non-dissociated solution?
Class 12 · Chemistry
→If the temperature is 27 °C, what is its approximate value in kelvins?
Class 12 · Chemistry
→In the osmotic-pressure method, on which temperature scale should temperature be expressed?
Class 11 · Chemistry
→If 5 g of a solute corresponds to 0.050 mol, what is its molar mass?
Class 12 · Chemistry
→If the molality is 0.2 m and the mass of solvent is 0.25 kg, how many moles of solute are present?
Class 12 · Chemistry
→If the boiling-point elevation is 0.104 K and Kb is 0.52 K kg mol⁻¹, what is the molality of a non-dissociated solution?
Class 12 · Chemistry
→Why is a non-volatile solute used in molar mass determination by vapour-pressure methods?
Class 12 · Chemistry
→If 8 g of a solute corresponds to 0.10 mol, what is its molar mass?
Class 12 · Chemistry
→If a 0.5 m solution is prepared using 0.2 kg of solvent, how many moles of solute are present?
Class 11 · Chemistry
→In that situation, if the mass of solute is 1 g and the amount of solute is 0.01 mol, what is its molar mass?
Class 12 · Chemistry
→If a 0.1 m solution is prepared using 0.100 kg of solvent, how many moles of solute are present?
Class 12 · Chemistry
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