Answer: 0.043g
Explanation:
chemical formular of perchloric acid is HClO4
no. of moles = mass / molar mass
n = m / mm
m = n x mm
n = 4.25 x 10^-4 mol
m = ?
mm = 1 + 35.5 + (16 x 4) = 100.5g/mol
m = 4.25 x 10^-4 mol x 100.5g/mol
m = 0.043g
Given :
A balanced chemical equation :

To Find :
How many grams of zinc are needed to produce 12 grams of zinc chloride.
Solution :
Moles of
,

Now, by balanced chemical equation we can say that 1 mol of Zn produce
1 mol of
.
So, 0.088 mol of Zn is required to produced 0.088 mol of
.

Therefore, 5.8 grams of zinc is required.
Hence, this is the required solution.
AL2o3 also known as Aluminium oxide is a chemical compound consisting of Aluminium and oxygen, hence AL2o3
Idrk i took chem last year but i didn’t get it