Given 25.0 mL of 0.200 M H₂SO₄,how many SO₃ molecules are dissolved in the sulfuric acid solution?

Question

Quizplus · Accepted Answer

First, calculate the moles of H₂SO₄ in the solution: (25.0 mL) * (0.200 mol/L) * (1 L / 1000 mL) = 0.005 mol. Since each molecule of H₂SO₄ produces one molecule of SO₃ upon decomposition, there are also 0.005 mol of SO₃. Using Avogadro's number (6.022 x 10²³ molecules/mol), the number of SO₃ molecules is (0.005 mol) * (6.022 x 10²³ molecules/mol) = 3.01 x 10²¹ molecules.

Given 250 ML of 0