Hydrogen chloride gas can be prepared by the following reaction: 2NaCl(s) + H₂SO₄(aq) $\rarr$ 2HCl(g) + Na₂SO₄(s)
How many grams of HCl can be prepared from 2.00 mol H₂SO₄ and 150 g NaCl?

Question

Hydrogen chloride gas can be prepared by the following reaction: 2NaCl(s)+ H₂SO₄(aq)$\rarr$ 2HCl(g)+ Na₂SO₄(s) How many grams of HCl can be prepared from 2.00 mol H₂SO₄ and 150 g NaCl?

Quizplus · Accepted Answer

The reaction shows that 2 moles of NaCl produce 2 moles of HCl. The molar mass of NaCl is 58.44 g/mol, so 150 g of NaCl is 2.57 moles. Since H2SO4 is in excess (2 moles), NaCl is the limiting reactant. Therefore, 2 moles of NaCl will produce 2 moles of HCl. The molar mass of HCl is 36.46 g/mol, so 2 moles of HCl weigh 73.5 g.

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