Question

8. If a 5 - star chocolate of 10 rupees, contains 3.42 g of sugar, then the number of sugar molecules
present in two five star chocolates is (molecular weight of sucrose is 342)
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Answer 1

Given,

Each 10/- chocolate has 3.42 g of sugar

And molecular weight of sucrose is 342g.

So each chocolate has 3.42/342 =0.01 moles of sucrose

And we know that 1 mole of sucrose has 6.023×10^23 molecules

0.01 moles will have 0.01×6.023×10 ^23 = 6.023×10^21 molecules.

So, 1 five star chocolate contains 6.023×10^21 molecules.

Therefore, 2 five star chocolates will have 2×6.023×10^21 = 12.046×10^21 molecules of sucrose.

Hope this helps!!

Answer 2

Answer:

12.046×10²¹

Explanation:

so this will be the answer

hope this helps you