# Problem: Determine the theoretical yield of K 2CO3 when 0.392 moles of KO 2 react with 29.0 L CO2 (at STP – 0°C, 1 atm). The molar mass of KO 2 = 71.10 g/mol and K 2CO3 = 138.21 g/mol. 4KO2(s) + 2CO2(g) → 2K2CO3(s) + 3O2(g)   a. 27.1 g b. 179 g c. 91.7 g d. 206 g e. 61.0 g

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###### Problem Details

Determine the theoretical yield of K 2CO3 when 0.392 moles of KO 2 react with 29.0 L CO2 (at STP – 0°C, 1 atm). The molar mass of KO 2 = 71.10 g/mol and K 2CO3 = 138.21 g/mol.

4KO2(s) + 2CO2(g) → 2K2CO3(s) + 3O2(g)

a. 27.1 g

b. 179 g

c. 91.7 g

d. 206 g

e. 61.0 g

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Standard Temperature and Pressure concept. You can view video lessons to learn Standard Temperature and Pressure. Or if you need more Standard Temperature and Pressure practice, you can also practice Standard Temperature and Pressure practice problems.

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Based on our data, we think this problem is relevant for Professor Pursell's class at GGC.