Answer: The percentage of silver in the alloy is 71.8 %.
Explanation:
To calculate the percentage composition of a substance in a mixture, we use the equation:
[tex]\%\text{ composition of substance}=\frac{\text{Mass of substance}}{\text{Mass of mixture}}\times 100[/tex]
We are given:
Mass of pure silver = 56 g
Mass of pure copper = 22 g
Mass of alloy = 56 + 22 = 78 g
Putting values in above equation:
[tex]\%\text{ composition of silver}=\frac{56}{78}\times 100=71.8\%[/tex]
Hence, the percentage of silver in the alloy is 71.8 %.
