Question

what is the mass of 4.54 moles of na₂so₄? molar mass na₂so₄ = 142.04 g/mol

Explanation:

Step1: Recall the formula

The formula to calculate mass \(m\) from moles \(n\) and molar mass \(M\) is \(m = n\times M\).

Step2: Substitute the values

Given \(n = 4.54\space mol\) and \(M=142.04\space g/mol\).
Substitute into the formula: \(m=4.54\times142.04\).

Step3: Calculate the result

\(m = 4.54\times142.04=644.8616\space g\).

Answer:

\(644.86\space g\) (rounded to two decimal places)