Question

calculate the number of moles and molecules of acetic acid present in 229 of it.​

Answer 1

Answer:

Assuming you mean 229 grams of acetic acid

The answer is:- around 3.8 moles

Explanation:

The molecular weight of acetic acid is around 60.

So 1 mole of acetic acid = 60grams

No of moles in 229 grams = 229/60

                                           = 3.8

No of atoms in this            =3.8 * 6.022*10^23          

Answer 2

Answer:

chemical formula of acetic acid is CH_3COOHCH

3

COOH or C_2H_4O_2C

2

H

4

O

2

so, molecular mass of acetic acid = 2 × atomic mass of C + 4 × atomic mass of H + 2 × atomic mass of O

= 2 × 12 + 4 × 1 + 2 × 16

= 24 + 4 + 32

= 60g/mol

given mass of acetic acid = 22g

so, no of moles of acetic acid = given mass/molecular mass

= 22/60 ≈ 0.367

so, number of moles of acetic acid is 0.367mol

number of molecules in 0.367 mol of acetic acid = 6.022 × 10²³ × 0.367

= 2.21 × 10²³

hence, number of molecules of acetic acid is 2.21 × 10²³

Explanation:

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