What is the average molar mass in gmol?what is the relative, Ask an Expert

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Three samples of unknown were titrated with standardized NaOH and give calculated molar masses of 80.4, 80.0 and 81.2 g/mol.

What is the average molar mass (in g/mol)?

What is the relative standard deviation(RSD) in parts per thousand (ppt)? Report your answer to the correct number of significant figures.

If RSD is > 5ppt, discard the MM furthest from the average and recalculate the average MM and RSD.

What is the new average MM (in g/mol)?

What is the new RSD (in ppt)? Report your answer to the correct number of significant figures.

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