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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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

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