How many molecules of HCl are formed when 70.0 g of water reacts according to the following balanced reaction? Assume excess ICl₃. 2 ICl₃ + 3 H₂O → ICl + HIO₃ + 5 HCl

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Quizplus · Accepted Answer

The molar mass of water (H₂O) is 18.02 g/mol. Therefore, 70.0 g of water is 70.0 g / 18.02 g/mol = 3.88 mol of H₂O. According to the balanced equation, 3 moles of H₂O produce 5 moles of HCl. Thus, 3.88 mol of H₂O will produce (3.88 mol H₂O) * (5 mol HCl / 3 mol H₂O) = 6.47 mol of HCl. The number of molecules is then 6.47 mol * 6.022 × 10²³ molecules/mol = 3.90 × 10²⁴ molecules of HCl.

How Many Molecules of HCl Are Formed When 70