Question

an alloy consists of 35 percentage zinc 20 percentage copper and rest nickel in 1.5kg alloy , find the quantity of alloy​

Answer 1

Step-by-step explanation:

an alloy contains 32% of copper 40% zinc and remaining nickel .find in grams the quantity of each of the content in a sample of 1 kg of alloy

:

Find the percent nickel: 100 - 32 - 40 = 28% nickel

1 kg = 1000 grams

.28*1000 = 280 grams of nickel

.32*1000 = 320 grams of copper

.40*1000 = 400 grams of zinc

--------------------------------

check total: 1000 grams

Answer 2

Step-by-step explanation:

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\%[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% composition of nickel=

Mass of sample

Mass of nickel

×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:

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

45%=

1500g

Mass of nickel

×100

Mass of nickel=

100

45×1500

=675g=0.675kg

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