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Class 12 · Chemistry
→Why does the factor 1000 appear in molar-mass determination formulas using molality?
Class 12 · Chemistry
→If the normal molar mass is 60 g mol⁻¹ and the observed molar mass is 120 g mol⁻¹, which process is possible?
Class 12 · Chemistry
→If the normal molar mass is 100 g mol⁻¹ and the observed molar mass is 50 g mol⁻¹, what is the Van’t Hoff factor i?
Class 12 · Chemistry
→If the normal molar mass is 180 g mol⁻¹ and the observed molar mass is 180 g mol⁻¹, what is the Van’t Hoff factor i?
Class 12 · Chemistry
→A student determines the molar mass of a solute by the osmotic pressure method. If the solute undergoes dimerisation in solution, which conclusion about the calculated molar mass is correct?
Class 12 · Chemistry
→Which factor is used to explain abnormal molar mass properly?
Class 12 · Chemistry
→In which situation is the molar-mass value called abnormal?
Class 12 · Chemistry
→Why is a non-volatile solute chosen in molar-mass determination based on vapour-pressure lowering?
Class 12 · Chemistry
→If calculation by the osmotic-pressure method is to be performed at 27 °C, what temperature value should be used in the formula?
Class 12 · Chemistry
→If the osmotic pressure of a solution is known, on which temperature scale should temperature be used for molar-mass calculation?
Class 12 · Chemistry
→If 1 g of solute is dissolved in 100 g of solvent, what does wB represent in the usual molar-mass formula?
Class 12 · Chemistry
→In the freezing-point-depression method, if ΔTf is measured as smaller for the same masses of solute and solvent, how will the calculated molar mass generally be affected?
Class 12 · Chemistry
→While finding molar mass from boiling-point elevation, if ΔTb becomes larger and all other quantities remain the same, what happens to the molar mass?
Class 12 · Chemistry
→If osmotic pressure increases while all other quantities remain constant, how will the molar mass calculated from M = wRT/(πV) change?
Class 12 · Chemistry
→If the mass of solute increases while all other quantities remain the same, how is the molar mass calculated from the osmotic-pressure formula affected?
Class 12 · Chemistry
→Which of the following colligative properties is particularly useful for determining the molar mass of a solute?
Class 12 · Chemistry
→What is another name for K_f in the freezing-point depression method?
Class 12 · Chemistry
→In the boiling-point elevation method for molar mass determination, what is another name for K_b?
Class 12 · Chemistry
→If 10 g of solute is dissolved in 500 g of solvent, what does w_A represent in the molar-mass formula?
Class 12 · Chemistry
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