Question

determine as massas molares das substancias abaixo:

a)(H2SO4
b)NaOH
c) HCl
d)C6H22O6
e)C2H2

Answer 1

a) H: 1X2=2
S= 32
O= 16X4= 64
TOTAL = 98

b) Na= 23
O= 16
H= 1
TOTAL=40

c) H=1
Cl= 35,45
TOTAL = 36,45

d)C= 12X6
H 1X22=22
O = 16X6=96
 TOTAL = 190

e) C= 12X2= 24
H = 1X2= 2
TOTAL 26