In the reaction 2co (g) + o2 (g) → 2co2 (g), what is the ratio of moles of oxygen used to moles of co2 produced?

The ratio of moles of oxygen used to moles of co2 produced is 1 : 2.

In the International System of Units, Mole is the base unit of the amount of any substance.

The balanced chemical equation is

In the chemical equation, we can see that 1 mol of oxygen reacts to produce 2 mol of carbon dioxide.

By stoichiometry

1 : 2

Moles of oxygen : Moles of Carbon dioxide

1 : 2

Thus, the ration of mole is 1:2.

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1 : 2

Explanation:

Let's bring out the balanced chemical equation.

2CO (g) + O2 (g) → 2CO2 (g)

From the equation, we can tell that 1 mole of oxygen reacts to produce 2 moles of Carbon dioxide.

The ration is given as;

Moles of oxygen = 1

Moles of Carbon dioxide = 2

Moles of oxygen : Moles of Carbon dioxide

1 : 2

the ideal gas law equation is as follows

pv = nrt

where p - pressure

v - volume

n - number of moles

r - universal gas constant

t - temperature

so if the pressure, volume and temperature are already known

we are left with n and r

since r is the universal gas constant that has a known fixed value then r too is known

so we are left with 'n'

once we know temperature volume and pressure

we can find the number of moles of gas present using the ideal gas law equation

this is not my own answer, this is an answer for the same question by the user blahblahmali. i do not claim ownership of this account.