Question

Calculate the mass of 100 molecule of surose (C12 H22 O11

Answer 1

Answer:

weight of 100 molecules of sucrose= (5.680 × 10^-20)g

weight of 100 molecules of sucrose= (5.680 × 10^-20)gwhere g denotes gram.

Explanation:

1 mole of sucrose weight as 342 gram

and we also know that in 1 mole of any substance there is 6.022×10^23 molecules(Na - Avogadro number)

By above statements we could say that sucrose has 6.022×10^23 molecules in 342g of sucrose

Then, 1 molecule will be in (342/6.022×10^23)g

( it is simple unitary method i m using here)

then 100 molecules will be in {342/6.022×10^23)× 100}g

Hence after solving above sum you will get weight or mass of 100 molecules as (5.680×10^-20)g

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