Zinc oxide and zinc sulfide react with HCl: ZnS(s) + 2 HCl(aq) > ZnCl2(aq) + H2S(g)
Answer:
9.1 mol
Explanation:
The balanced chemical equation of the reaction is:
CO (g) + 2H2 (g) → CH3OH (l)
According to the above balanced equation, 2 moles of hydrogen gas (H2) are needed to produce 1 mole of methanol (CH3OH).
To convert 36.7 g of hydrogen gas to moles, we use the formula;
mole = mass/molar mass
Molar mass of H2 = 2.02g/mol
mole = 36.7/2.02
mole = 18.17mol
This means that if;
2 moles of H2 reacts to produce 1 mole of CH3OH
18.17mol of H2 will react to produce;
18.17 × 1 / 2
= 18.17/2
= 9.085
Approximately to 1 d.p = 9.1 mol of methanol (CH3OH).
The answer would be the aftershock
Answer:
Explanation:
For second order reaction
dC / dt = -k C²
dC /C² = - kdt
Integrating on both sides,
[- 1/C ] = - kt + P , P is a constant .
When t =0 , C = 1.33 M
P = - 1 / 1.33
[- 1/C ] =- - kt - 1 / 1.33
When t = 8.5
[- 1/C ] = - kt - 1 / 1.33
= - 1.18 x 8.5 - 1 / 1.33
= - 10.03 - .7519
= - 10.782
C = .0927 M
= .093 M
I believe that's an isotope, but I may be wrong.