Question

an alloy consists of 13 parts of copper to 7 parts of zinc and 5 parts nickel what is the percentage composition of alloy?? plz solve this in a proper way step by step..​

Answer 1

Total Parts of Alloy = 13+7+5 => 25

% of Copper = $\sf{\dfrac{13}{25}\times 100 = 13\times4=52\%}$

% of Zinc = $\sf{\dfrac{7}{25}\times100=7\times4=28\%}$

% of Nickel = $\sf{\dfrac{5}{25}\times100=5\times4=20\%}$

Therefore, the total percent adds up to 100%.

So,

% of Copper = 52%

% of Zinc = 28%

% of Nickel = 20%

Hope it helps u

Have a great day ahead

Annyeong

Answer 2

Answer:

Since this question is from Chemistry of Chapter - Is matter around us pure?

Parts of Copper = 13

Parts of Zinc = 7

Parts of Nickel = 5

Total part of Alloy = 13+7+5 = 25

Percentage of Copper(Cu) =( Value of Component/ Total Value x 100)%

$pertange = \frac{13}{25} \\\\\peretange = 13 * 4 = 52%$

Again,

Percentage of Zinc(Zn) = 7/25 x 100 %

Percentage  = 7*4=28%

Now,

Percentage of Nickel (Ni) = 5/25 x 100 %

Percentage  = 5*4=20%