Calculate the number of moles in a liquid sample of a substance that has a molar heat of fusion of 3.811 kJ/mol, if the sample releases 90.6 kJ when it freezes. Answer in units of mol Calculate the molar mass of the substance if the mass of the sample is 2022 g. Answer in units of g/mol.

the moles of liquid is 23.77mole which is obtained by divide 90.6kj to 3.811kj/mol and molar mass is obtained from the formula of mole eg mole=mass/molar mass but mass is given and moles is obtained above.

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tallinn tallinn · Answer 2 · 2022-04-27T08:17:39+02:00

When the molar mass of the significance of the mass of the sample is 2022 g is = 23.77mole, 85.1g/mol.

Calculation of Molar mass

When the molar mass of a chemical combination is defined as the mass of a sample of that compound separated by the amount of substance in that instance, measured in moles.

Although, The molar mass is a bulk, not molecular, property of a substance. The molar mass is an average of many instances of the combination, which often change in mass due to the existence of isotopes.

When the moles of liquid is 23.77mole which is received by dividing 90.6kj to 3.811kj/mol and molar mass is acquired from the formula of mole eg mole is = mass/molar mass but the mass is given and moles is conveyed above.

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