Question

What mass of carbon dioxide (CO2) will contain 3.011 x 10^23 molecules?​

Answer 1

Answer:

22 grams

Explanation:

No.of mole=no.of the molecules/Avogadro no.

n=no.of mole

n=3.011*10^23/6.022*10^2

n=0.5 mole

no.of mole.=mass/molecular mass

molecular mass of CO2=C-12g;O2-16*2-32=12+32g=44g

m(mass)=0.5mole*44g=22g

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Answer 2

Given: carbon dioxide (CO2) contain 3.011 x 10^23 molecules

To find: Mass of carbon dioxide

Solution: we are given that Carbon Dioxide contains 3.011 x 10^23 molecules and we need to find its mass for which we have a formula that is

n= N/NA

here n is the number of moles, N is the number of molecules and NA is Avogadro's Number having its value of 6.022×10^23

on putting values we will get

n = 0.5 mol

now we know that

n = m/M

here n is the number of moles, m is the mass of that substance, M is the molecular mass of that substance

here we are given carbon dioxide which has a molecular mass of 44gms

on putting values we get

m = 0.5×44 = 22gms

Therefore, the mass of carbon dioxide (CO2) that will contain 3.011 x 10^23 molecules is 22 gms.