Question

In the balanced equation, 4KO2 + 2CO2 = 2K2CO3 + 3O2 which two chemicals have a molar ratio of 3:4?

Answer 1

Oxygen gas and potassium superoxide have a molar ratio of 3:4.

Step-by-step explanation:

`4KO_2 + 2CO_2\rightarrow 2K_2CO_3 + 3O_2`

According to reaction, 4 moles of potassium superoxide reacts with 2 moles of carbon dioxide to give 2 moles of potassium carbonate and 3 moles of oxygen gas.

Mole ratio is defined as ratio of moles of two chemical compounds in a given chemical equation of the reaction.

Moles of potassium superoxide = 4

Moles of carbon dioxide = 2

Moles of potassium carbonate = 2

Moles of oxygen gas = 3

Molar ratio of oxygen to potassium superoxide =
`(3 mol)/(4 mol)=(3)/(4)`

Oxygen gas and potassium superoxide have a molar ratio of 3:4.

Answer 2

4KO₂ + 2CO₂ → 2K₂CO₃ + 3 O₂

The two chemicals that have a molar ratio of 3:4 is in equation above O₂ and KO₂

explanation

The molar ratio is the ratio between the amount in moles of two compounds that are involved in a chemical reaction.

In the equation above the mole ratio is determined by examining coefficient ( number in front of the formula)

the coefficient of O₂ is 3 while that of KO₂ is 4 therefore the mole ratio of O₂:KO₂ is 3:4