Question

Consider the reaction of zinc metal with hydrochloric acid:
Zn(s) + 2 HCl(aq) → ZnCl2(aq) + H2(g).

If 29.39 × 1024 atoms of zinc completely reacted with hydrochloric acid, how many moles of hydrochloric acid must have reacted?

Do NOT include units in your entry. Report your answer with 3 SFs.

______________________ moles of HCl

Answer 1

Answer:

6.054×10²⁵

Explanation:

1)find number of moles of zinc

2)multiply the mole of zinc with 2

3)use the formula mol = number of particle/ avogadro constant