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100m³ = 100 000 dm³
1 123,4mg = 0,0001234 kg
1 dm³ -----------------0,0001234 kg H2S
100 000 dm³ ------------ x
x = 100 000 dm³ * 0,0001234 kg / 1dm³
x = 12,34 kg H2S
x 12,34kg
FeCl2 + H2S ----> FeS + 2HCl
mFeCl2 = 56u + 2 * 35,5u= 127u
m H2S = 1 *2u + 32u = 34u
127u ------------------34u
x kg ------------------ 12,34kg
x = 127u * 12,34kg / 34u
x = 46,09 kg
d=123,4mg/dm3 = 0,0001234g/cm3
V=100m3 = 100 000 000 cm3
d=m/V
m=d*V
m H2S = 100 000 000 cm3 * 0,0001234g/cm3 = 12340g = 12,34kg
12,34kg H2S - x FeCl2
34 g/mol H2S - 127g/mol FeCl2
x= 46,09 kg