Question

16g of H2 react with 16g of O2 the mass of water formed is
a.4.5g
b.9g
c.18g
d.36g​

Answer 1

Answer:

c. 18g

Explanation:

the equation will be

2H2 + O2 ----> 2H2O

where:

moles of O2 = ½ ( moles = given wt./mol.wt)

comparing moles:

moles of O2 × 2 = moles of H2O

thus, moles of H2O = 1

there weight of water formed will be 18g (moles × mol. wt. = given wt.)