How many molecules are present in 40g of c02

Hi.

Here is your answer

Given

For oxygen,

Mass of the oxygen = 40 grams.

Molecular mass of the oxygen = 32 grams.

Thus, number of molecules =( mass/ molecular mass) x Avogadro's number.

                                           = (40/32) x Avogadro's number.

Molecular mass of carbon dioxide = 44 grams.

Thus, number of molecules = (mass/44) x Avogadro's number.

According to the question,

       Number of molecules of CO2 = Number of moecules of O2

Therefore,  Mass/44 = 40/32

                       Mass of CO2 = 55 grams.

Thus, mass of carbon dioxide (CO2) = 55 grams.

Hope it will helps u.

Have a nice day.

the density(ratio between mass and volume as m/v) decreases from top to bottom in periodic table group as the size increases and nuclear charge decreases. but in periods density increases from left to right as atom size decreases and nuclear charge increases.

c8h10 is your answerr