Question

Calculate the number of moles and molecule of acetic acid present in 22g of it

Answer 1

Answer:

The number of moles is 0.367 and the number of molecules of acetic acid is 2.21× 10²³.

Explanation:

Acetic acid has the formulae as CH3COOH.

As we know, the number of moles = Mass/ Molar mass.

As the molar mass of acetic acid is 60g/mol ( by adding up the molar mass of carbon, hydrogen and oxygen as given in the chemical formula).

The given mass of acetic acid = 22g

Hence, the number of moles of acetic acid = 22/60 which is equivalent to 0.367

Also, we know that 1 mole of acetic acid contains = 6.022 × 10²³ molecules

Hence, the number of molecules in 0.367 moles of acetic acid = 6.022 × 10²³ ×0.367

which is equal to 2.21 × 10²³.

Explanation:

Answer 2

Answer:

number of moles=weight / molecular weight

given weight = 22 g , molecular weight= 60 ( we know that m.wt of ch3cooh is 60)

moles= 22/60=0.3666

no. of molecules = no. of moles * Na        (Na=6.023*10^23)

no. of molecules = 2.2*10^23

HOPE IT IS HELPFUL