Final answer:There are approximately 0.0353molesofsodium ions(Nat) in 5.01 g of sodium sulfate (Na2SO4).Explanation:To calculate the number ofmolesofsodium ions(Nat) in 5.01 g ofsodium sulfate(Na2SO4), we need to use themolar massof Na2SO4. The molar mass of Na2SO4 is calculated by adding up the atomic masses of its constituent elements:Sodium (Na) has an atomic mass of 22.99 g/molSulfur (S) has an atomic mass of 32.07 g/molOxygen (O) has an atomic mass of 16.00 g/molTherefore, the molar mass of Na2SO4 is (2 * 22.99) + 32.07 + (4 * 16.00) = 142.04 g/mol.Now, we can use the formula:moles = mass / molar massSubstituting the given mass of sodium sulfate (5.01 g) and the molar mass of Na2SO4 (142.04 g/mol) into the formula, we get:moles = 5.01 g / 142.04 g/molCalculating this, we find that there are approximately 0.0353 moles of sodium ions (Nat) in 5.01 g of sodium sulfate.Learn more aboutcalculating moles from masshere:brainly.com/question/29793745#SPJ14...

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