Answer:
Given
mass of H2O (m) =35.6g
molarmass (mr) = H2O ), 1x2+16=18g/mol
moles of H2O (n) =?
sln
n=m/mr
n=35.6g/18g/mol
n=1.978moles
the moles of H2O are 1.978moles
Sorry but I don't know
Explanation:
I just want points sorry
.86
.48
19/25 x 4/4 = 86/100
86/100 = .86
12/25 x 4/4 = 48/100
48/100 = .48
