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olga2289 [7]
3 years ago
13

Please help, I don't under stand! Balance the following oxidation-reduction reaction and indicate which atoms have undergone oxi

dation and reduction. ____FeCl3 + ____H2S Imported Asset ____FeCl2 + ____S + ____HCl
Chemistry
1 answer:
pogonyaev3 years ago
4 0

Answer:

3 FeCl3 + H2S = 2 FeCl2 + S + 2 HCl

Explanation:

Fe goes form +3 to +2

S goes from -2 to 0

H and Cl are spectator ions

Fe3+ + 1e-= Fe2+

H2S = S + 2 H+ + 2e-

3 Fe3+ + H2S = 2 Fe2+ + S + 2 H+

3 FeCl3 + H2S = 2 FeCl2 + S + 2 HCl

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A layer of sandstone is found on top of a layer of shale
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Answer: Yes it is

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3 years ago
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The value of Δ G ° ' for the conversion of 3-phosphoglycerate to 2-phosphoglycerate (2PG) is + 4.40 kJ/mol . If the concentratio
Mrac [35]

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Relation between standard Gibbs free energy and equilibrium constant follows:

\Delta G^o=-RT\ln K

where,

\Delta G^o = Standard Gibbs free energy = +4.40  kJ/mol = 4400 J/mol  (Conversion factor: 1kJ = 1000J)

R = Gas constant = 8.314J/K mol

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Putting values in above equation, we get:

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K=0.169

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8 0
3 years ago
Calculate Delta E when 33.0 g of carbon dioxide sublimes at 77.0 K and 1 ATM
bagirrra123 [75]
To solve this problem, we establish the general energy balance:

ΔE = ΔU + ΔKE + ΔPE 
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Q + W = ΔU + ΔKE + ΔPE

In this case, ΔKE and ΔPE are both zero or negligible.

Given:

m = 33.0 grams of CO2
Tsub = 77 K
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solve for mCpΔT, find the value of Cp for CO2, then solve for Q. Next, solve for W using the ideal gas law. Add the two values and that will be the value of the delta E. 
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3 years ago
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