Mass or the weight of the substance can be given as the product of the moles and molar mass of the substance. 5.25642 g is the mass of 0.02 moles of beryllium iodide.
What is the relationship between mass and moles?
Mass is the weight of the compound present in the given substance and can be given by the formula,
\(\rm mass = \rm molar\; mass \times moles\)
Given,
Moles of beryllium iodide (n) = 0.02 moles
Molar mass of beryllium iodide (M) = 262.821 g/mol
Mass of beryllium iodide = m
Solving for mass (m):
\(\begin{aligned} \rm m &= \rm M \times n\\\\\rm m &= 262.821 \;\rm g/mol \times 0.02\\\\&= 5.25642 \;\rm g\end{aligned}\)
Therefore, 5.25642 g is the mass of the beryllium iodide.
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