Question

How much copper can be obtained from hundred gram of copper sulphate solution?

Answer 1

Given that,

Weight of copper sulphate = 100 g

We know that,

1 mole of copper sulphate contains 1 mole of copper.

We need to calculate the molar mass of copper sulphate

Using formula of copper sulphate

$\text{Molar mass}=\text{atomic weight of copper +atomic weight of sulphur+4\times  atomic weight of oxygen}$

Put the value into the formula

$]\text{Molar mass of copper sulphate}=63.5+32+4\times16$

$]\text{Molar mass of copper sulphate}=159.5\ g/mol$

We need to calculate the moles of copper sulphate

Using formula of moles

$\text{moles of copper sulphate}=\dfrac{m}{M}$

Where, M = molar mass of copper sulphate

m = mass of copper sulphate

Put the value into the formula

$\text{moles of copper sulphate}=\dfrac{100}{159.5}$

We know that,

1 mole of copper sulphate  = 1 mole atom of copper

We need to calculate the mass of copper in copper sulphate

Using formula of mass for copper

$m=\text{moles of copper sulphate}\times \text{atomic weight of copper}$

Put the value into the formula

$m=\dfrac{100}{159.5}\times63.5$

$m=39.8\ g$

Hence, The mass of copper in copper sulphate is 38.9 gram

Answer 2

Answer:

39.81 g of Copper (Cu) can be get from 100 g of Copper Sulphate (CuSO4).

Explanation:

• 1 mole of Copper Sulphate (CuSO4) have 1 mole of copper.
• Atomic mass of Copper (Cu) = 63.5μ
• Gram atomic mass of Copper =63.5 g.
• Atomic mass of Sulphur (S)=32μ
• Gram atomic mass of Sulphur= 32 g.
• Atomic mass of Oxygen (O) =16μ
• Gram atomic mass of oxygen(O)=16 g.
• Copper Sulphate (CuSO4) contains 1 copper,1 sulphur,and 4 oxygen
• Molar mass of Copper Sulphate (CuSO4) = 1×Atomic mass of Copper +1 ×Atomic Mass of Sulphur+ 4× Atomic mass of Oxygen

                                             $=1\times(63.5)+1\times(32)+4\times(16)\\=63.5+32+64\\=159.5g$

159.5 g of Copper Sulphate (CuSO4) have 63.5 g of Copper (Cu).

The amount of Copper (Cu) get from 100 g of Copper Sulphate (CuSO4):

$=\frac{63.5\times100}{159.5} \\=39.81$

So 39.81 g of Copper (Cu) can be get from 100 g of Copper Sulphate (CuSO4).