Question

An alloy contain 20 copper 35 zinc and rest as nickel in 1.5 kg alloy find quantity the alloy

Answer 1

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Answer 2

Answer: The amount of nickel in the alloy is 0.675 kg

Explanation:

We are given:

Percentage of copper in alloy = 20 %

Percentage of zinc in alloy = 30 %

Percentage of nickel in the alloy = $[100-(20+35)]=45\%$

To calculate the mass of nickel in alloy, we use the equation taht is used to calculate percentage composition, which is:

$\%\text{ composition of nickel}=\frac{\text{Mass of nickel}}{\text{Mass of sample}}\times 100$

Mass of alloy = 1.5 kg = 1500 g     (Conversion factor:  1 kg = 1000 g)

Percentage composition of nickel = 45 %

Putting values in above equation, we get:

$45\%=\frac{\text{Mass of nickel}}{1500g}\times 100\\\\\text{Mass of nickel}=\frac{45\times 1500}{100}=675g=0.675kg$

Hence, the mass of nickel in given alloy is 0.675 kg