Question

An alloy contains \[40\% \] copper, \[32\% \] nickel and rest zinc. Find the mass of zinc in one Kg of the alloy.

Answer 1

Hint: We need to know that in chemistry, periodic tables play a vital role. In the periodic table there are totally \[118\] elements. In the periodic table there are totally \[18\] columns and \[7\] rows. The columns are called groups. Hence, \[18\] groups in the periodic table. The rows are called periods. Hence, totally \[7\] period in the table. Each and every element having a specific symbol in the periodic table. Each element having a specific position in the periodic table, that position is dependent on the physical and chemical properties of the element.

Formula used:
The total percentage of all metals in the alloy is equal to zero.
For example,
One alloy having three metals are A, B and C.
The percentage of metal A is X.
The percentage of metal B is Y.
The percentage of metal C is Z.
The percentage of all the metal is equal to the hundred is given below,
\[X + Y + Z = 100\]

Complete answer:
The given data is below,
The percentage of metal copper is \[40\% \].
The percentage of metal nickel is \[32\% \].
The percentage of metal zinc is X.
We calculate the mass of zinc in one Kg of the alloy is given below,
The percentage of all the metal is equal to the hundred is given below,
\[X + Y + Z = 100\]
Now we can substitute the given values we get,
\[X + 32 + 40 = 100\]
$X = 100 - 72$
On simplification,
$X = 28$
The percentage of zinc in the alloy is equal to \[28\% \].
The mass of zinc in one Kg of the alloy is \[0.28kg\].
According to the above discussion, we conclude that the mass of zinc in one Kg of the alloy is \[0.28kg\].

Note:
As we know, the atomic number of the atom depends on the number of protons or the number of electrons. The atomic number of the atom is equal to the number of protons or the number of the electrons. The mass number of the atom depends on the number of protons and the number of neutrons. The mass number of the atom is equal to the sum of the number of protons and the number of neutrons in the atom. The oxidation reaction means addition of oxygen or the removal of hydrogen or the loss of electrons. The reduction reaction means addition of hydrogen or the removal of oxygen or the gain of electrons.