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damaskus [11]
3 years ago
9

A sample of table sugar has a mass of 5.432g a) calculate the number of moles in the sample

Chemistry
1 answer:
Temka [501]3 years ago
3 0

The number of particles of atoms depends on the ratio of their composition in the compound

<h3>Further explanation</h3>

Given

5.432 g of table sugar

Required

moles of sample

moles of C, H and O

number of atoms

Solution

Table sugar : Sucrose : C₁₂H₂₂O₁₁

  • moles of sample :

= 5.432 : 342,3 g/mol

= 0.016

  • moles of C, H, and O :

C = 12 x 0.016 = 0.192

H = 22 x 0.016 = 0.352

O = 11 x 0.016 = 0.176

  • number of atoms :

C = 0.192 x 6.02 x 10²³ = 1.16 x 10²³

H = 0.352 x 6.02 x 10²³ = 2.12 x 10²³

O = 0.176 x 6.02 x 10²³ = 1.06 x 10²³

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From the question given above, the following data were obtained:

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