Problem: How many grams of oxygen are formed when 5.30 moles of KOH are formed?4 KO(s) + 2 H2O(l) → 4 KOH(s) + O2(g) A) 21.2 g O2B) 84.8 g O2C) 170 g O2D) 5.30 g O2E) 42.4 g O2

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FREE Expert Solution

Use stoichiometry to determine the mass of O2 produced when 5.30 moles of KOH is produced as well

Find the molar mass of O2 for the dimensional analysis

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Problem Details

How many grams of oxygen are formed when 5.30 moles of KOH are formed?

4 KO(s) + 2 H2O(l) → 4 KOH(s) + O2(g) 

A) 21.2 g O2

B) 84.8 g O2

C) 170 g O2

D) 5.30 g O2

E) 42.4 g O2