moles NaOH = 5.20 g * 1 mol / 40.00 g = 0.13 mol
[NaOH] = n/V = 0.13 mol / 0.500L
= 0.26 M
The answer to this question is 0.26 M
Answer:To speed up the rate of hydrogen production
Explanation:
In the preparation of Hydrogen from the action of dilute acid on zinc metal, few drops of Copper(II)tetraoxosulphate(VI) solution is added to speed up the rate of production.
The hydrogen produced is shown in the equation below
Zn(s) + 2HCl(aq) --> ZnCl2(aq) + H2(g)
Thus, Copper(II)tetraoxosulphate(VI) solution, a catalyst is used to speed up hydrogen production.
7.Pulling Forces
8.Opposite
9.Not equal
10.Do not balance each other
11.left
12.right
13.left
