sample of copper sulphate pentahydrate, CuSO4.5H2O contains 3.782 g of Cu. How many grams of oxygen are in this sample ?

Question

sample of copper sulphate pentahydrate, CuSO4.5H2O contains 3.782 g of Cu. How many grams of oxygen are in this sample ? (A) 0.952 g (B) 3.809 g (C) 4.761 g (D) 8.570 g

Tardigrade Admin · Accepted Answer

Sample CuSO4. 5H2O [Cu (H2O)5S04] 63 g of Cu = 144 g (Oxygen) 3.782 g Cu = ? (1144 × 3.782/63)= 8.570 g (Oxygen)

Q. sample of copper sulphate pentahydrate, $C u S O_{4} .5 H_{2} O$ contains $3.782 g$ of $C u$ . How many grams of oxygen are in this sample ?

$0.952$ g

$3.809$ g

$4.761$ g

$8.570$ g

Sample $C u S O_{4} .5 H_{2} O$
$[C u (H_{2} O)_{5} S 0_{4}]$
$63$ g of $C u = 144$ g (Oxygen)
$3.782 g C u = ?$
$\frac{1144 \times 3.782}{63} = 8.570 g$ (Oxygen)

Q. sample of copper sulphate pentahydrate, CuSO4​.5H2​O contains 3.782g of Cu. How many grams of oxygen are in this sample ?

0.952 g

3.809 g

4.761 g

8.570 g