Question

Q2 Calculate number of moles in 20g glucose sample,​

Answer 1

Explanation:

2) n = mass /Molar mass.

n= 20/ 180

n= 0.1111 moles.

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Answer 2

0.11 moles (approx)

as C⁶H¹²O⁶=(6×12+12×1+6×16)

= (72+12+96) =180 g

No. of moles=Given mass/Molar mass

=20/180

= 0.11 moles