Question

calculate the mass, in grams, of 0.2 moles of mn. the mass of one mole of mn is 54.94 g.

Explanation:

Step1: Recall the formula for mass from moles

The formula relating moles (\(n\)), mass (\(m\)) and molar mass (\(M\)) is \(m = n\times M\). Here, the number of moles \(n = 0.2\) mol and the molar mass \(M = 54.94\) g/mol.

Step2: Substitute the values into the formula

Substitute \(n = 0.2\) and \(M = 54.94\) into the formula \(m = n\times M\). So, \(m=0.2\times54.94\).

Step3: Calculate the product

Calculate \(0.2\times54.94 = 10.988\) g.

Answer:

The mass of 0.2 moles of Mn is 10.988 grams.