Copper refining traditionally involves roasting insoluble sulfide ores (CuS) with oxygen Unfortunately, the process produces large quantities of SO 2 (g), which is a major contributor to pollution and acid rain An alternative process involves treating the sulfide ore with HNO 3 (aq), which dissolves the CuS without generating any SO 2 The unbalanced chemical expression for the reaction is given below CuS(s) NO 3 (aq) Cu 2 (aq) NO(g) HSO 4 (aq) (not balanced) What volume of concentrated nitric acid solution is required per kilogram of CuS Assume that the concentrated nitric acid solution is 70 HNO 3 by mass and has a density of 1 40 g mL

Question: Copper refining traditionally involves roasting insoluble sulfide ores (CuS) with oxygen. Unfortunately, the process produces large quantities of SO 2 (g), which is a major

Copper refining traditionally involves “roasting” insoluble sulfide ores (CuS) with oxygen. Unfortunately, the process produces large quantities of SO₂(g), which is a major contributor to pollution and acid rain. An alternative process involves treating the sulfide ore with HNO₃(aq), which dissolves the CuS without generating any SO₂. The unbalanced chemical expression for the reaction is given below.

CuS(s)+ NO₃^-(aq) → Cu²⁺(aq) + NO(g) + HSO₄^-(aq) (not balanced)

What volume of concentrated nitric acid solution is required per kilogram of CuS? Assume that the concentrated nitric acid solution is 70% HNO₃ by mass and has a density of 1.40 g/mL.

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