An alloy of Aluminum and copper was treated with aqueous HCL . the Aluminum dissolved according to reaction
Al + 3H⁺ → Al³⁺ +H₂
But the copper remained as pure metal a 3 mole sample of alloy gave 67.2 liter of H₂ Measured at STP . what is the mole of Cu in the alloy ?
Answers
- An alloy of Aluminum and copper was treated with aqueous HCL . The Aluminum dissolved according to reaction . But the copper remained as pure metal , a 3 mole sample of alloy gave 67.2 liter of H₂ Measured at STP. What is the mole of Cu in the alloy ?
- An alloy of Aluminum and copper was treated with aqueous HCL
- The Aluminum dissolved according to reaction
- Copper remained as pure metal
- A 3 mole sample of alloy gave 67.2 liter of H₂ Measured at STP
- Mole of Cu in the alloy
The general equation is as follows :
- It can be expressed as :
We know : At STP, one mole of any gas occupies a volume of 22.4 L
- It means moles of 67.2 L of gas = = 3 mole of H₂
From given reaction, it is clear that :
Hence, Mole of Al in alloy = 2 mole
- Mole of Cu in alloy = 3 mole - 2 mole = 1 mole
It means there is 1 mole of Cu in alloy
Explanation:
An alloy of Aluminum and copper was treated with aqueous HCL . The Aluminum dissolved according to reaction
But the copper remained as pure metal , a 3 mole sample of alloy gave 67.2 liter of H₂ Measured at STP. What is the mole of Cu in the alloy ?
An alloy of Aluminum and copper was treated with aqueous HCL
The Aluminum dissolved according to reaction
Copper remained as pure metal
A 3 mole sample of alloy gave 67.2 liter of H₂ Measured at STP
Mole of Cu in the alloy
→To Find
It means moles of 67.2 L of gas =
From given reaction, it is clear that :
Hence, Mole of Al in alloy = 2 mole
Mole of Cu in alloy = 3 mole - 2 mole = 1 mole
It means there is 1 mole of Cu in alloy.