Answer :

nkirotedoreen46

Answer:

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 mass
  • Rearranging the formula;

Mass = Moles × molar mass

In this case;

  • Molar mass of Gold is 196.967 g/mol
  • Therefore;

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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