Question

34.2 g of Sucrose is dissolved in 90 g of Water. The number of oxygen atoms in the Solution are : ?​

Answer 1

Answer:

34 2g of sucrose (C12H22O11) are dissolved in 90g of water in a glass The number of oxygen atoms in the solutions are: (a) 3 66*1026 (b)6 6*1023 (c)3 ...

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Answer 2

Answer:

no. of Moles of Sucrose = 34.2/342 = 0.1 gm

No. of Moles of H2O = 90/18 = 5 gm

1 mole of Sucrose contains = 11×6.022×10^23 molecules of O2

0.1 mole of Sucrose contains = 11×6.022×10^22 atoms of O2

therefore, 5 mole of H2O contains = 5×6.022×10^23 atoms of O2

= 3.66 × 10^24 atoms of O2