How much mass do 2.6 moles of gold contain

512.114 g

Explanation:

We are given;

Number of moles of gold as 2.6 moles

we are required to calculate the mass of gold

To answer the question, we need to understand the relationship between mass, molar mass and moles.To calculate number of moles of an element we divide mass of the element by its molar mass.That is; Moles = Mass ÷ molar massRearranging the formula;

Mass = Moles × molar mass

In this case;

Molar mass of Gold is 196.967 g/molTherefore;

Mass of Gold = 2.6 moles × 196.967 g/mol

                      = 512.1142 g

                      = 512.114 g

Thus, the mass of gold is 512.114 g

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