274g
First, calculate the molar mass of ZnCl2:
Zn: 65g/mol
Cl: 35g/mol
ZnCl2: 65g/mol + 2(35g/mol) = 135g/mol
Next, calculate the molar mass of H2:
H2: 2(1g/mol) = 2g/mol
For every 130g of Zn reacting, 65g of ZnCl2 and 2g of H2 are produced. Therefore, the total mass of the products is 130g (Zn) + 135g (ZnCl2) + 2g (H2) = 274g.
Use the chemical equation to answer the question.
2HCl(ag) + Zn(s) → ZnCl2(aq) + H2(g)
The molar mass of hydrogen (H) is 1g/mol, the molar mass of chlorine (Cl) is 35g/mol, and the molar mass of zinc (Zn) is 65g/mol. When 130g of zinc react completely in hydrochloric acid (HCl), how much is the total mass of the products?
(1 point)
Responses
130g
130g
144g
144g
274g
274g
270g
1 answer