Question

A sample of C12H22O11 , that contains 72g of carbon also contains how many grams of oxygen ?
answer - 88g

someone please give the correct explanation

wrong answers will be reported​

Answer 1

Answer:

Answer is: 88g

Explanation:

Given: The sample of (C_{12} H_{22} O_{11} 72 g of carbon.

To find: Mass of oxygen contain in (C_{12} H_{22} O_{11}

Solution: In the given sample,

1 mole of (C_{12} H_{22} O_{11} contains 12 carbon atoms.

This means that 1 mole of (C_{12} H_{22} O_{11} contains 144g of carbon atom (because it contains 12 carbon atoms and mass of 1 carbon atom is 12 g).

Similarly, 1 mole of (C_{12} H_{22} O_{11} contains 176 g of oxygen atom (because it contains 11 oxygen atoms and mass of 1 oxygen atom is 16g).

Now,

144g carbon compound has = 176 g of oxygen atom

so, 1 g of carbon compound has =  \frac{176}{144} =1.22g oxygen atoms

and 72 g of carbon compound has = 1.22×72g = 88g (approximately)

Therefore, the correct answer is 88g.

Answer 2

Answer:

Similarly, 1 mole of (C_{12} H_{22} O_{11} contains 176 g of oxygen atom (because it contains 11 oxygen atoms and mass of 1 oxygen atom is 16g). Therefore, the correct answer is 88g.