tolong bantuin kakak

1.
a) M = m / v (liter)
M = 0.5 / 0.5
M = 1 M

b) M = m / v (liter)
M = 0.2 / 0.4
M = 0.5 M

2.
Dik:
v = 100 mL = 0.1 L
M = 0.1 M
Mr H2SO4 = 98

Dit:
massa/gr = ?

Jawab:
m = M × V
m = 0.1 × 0.1
m = 0.01

m = gr/mr
gr = m × mr
gr = 0.01 × 98
gr = 0.98 gram

3.
Dik:
massa/gr CO2 = 10 gram
Mr CO2 = 44

Dit:
V (stp) = ?

Jawab:
m = gr/mr
m = 10 / 44
m = 0.22

V = m × 22.4 (STP)
V = 0.22 × 22.4
V = 4.928 L atau 5 L