Answer :

The number of grams in 1.70 moles of manganese is 93.5grams.

How to calculate mass?

The mass of a substance can be calculated by multiplying the number of moles in the substance by its molar mass as follows:

mass = molar mass × no of moles

According to this question, a student has 1.70 moles of manganese. The number of grams of manganese that they have can be calculated as follows:

molar mass of Manganese = 55g/mol

mass = 1.70 × 55

mass = 93.5g

Therefore, 93.5grams is the mass of manganese

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Rewritten by : Jeany