Question

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• Negative Marks: -1 If wrong option is
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What is the apparent molecular mass (in
gm/mol) of a weak acid, HA (molar mass =
30.0 gm/mol) in an aqueous solution, which
shows elevation in boiling point by 0.0156°C?
[Given: pka (HA) = 2.0, Kb (H20) = 0.52 K kg
mol-1]​

Answer 1

Answer:

The characteristic molar mass of an element is simply the atomic mass in g/mol. However, molar mass can also be calculated by multiplying the atomic mass in amu by the molar mass constant (1 g/mol). To calculate the molar mass of a compound with multiple atoms, sum all the atomic mass of the constituent atoms.