Question

In: Chemistry

Use the equation below to answer the questions. Fe3O4(s) + 4 H2(g) → 3 Fe(s) +...

Use the equation below to answer the questions.

Fe3O4(s) + 4 H2(g) → 3 Fe(s) + 4 H2O(l)

1) If the rate of disappearance of H2 is 7.1 M/s, what is the rate of disappearance of Fe3O4? Answer to 2 decimal places.

2) Relate the rate of disappearance of Fe3O4 to the appearance of Fe.

a) b) c) d)

3) If the rate of appearance of Fe is 4.9 M/s, what is the rate of appearance of H2O? Answer to 2 decimal places.

4) Relate the rate of appearance of Fe to the disappearance of Fe3O4.

a)  b) c)  d)

5) Relate the rate of appearance of H2O to the disappearance of Fe3O4.

a)  b) c)  d)

6) If the rate of disappearance of Fe3O4 is 6.6 M/s, what is the rate of disappearance of H2? Answer to 2 decimal places.

7) Relate the rate of disappearance of H2 to the appearance of Fe.

a) b) c) d)

8) If the rate of disappearance of Fe3O4 is 7.4 M/s, what is the rate of appearance of Fe? Answer to 2 decimal places.

9) If the rate of appearance of H2O is 8.2 M/s, what is the rate of appearance of Fe? Answer to 2 decimal places.

10) Relate the rate of disappearance of H2 to the disappearance of Fe3O4.

a) b) c)d)

Solutions

Expert Solution

Fe3O4(s) + 4 H2(g) → 3 Fe(s) + 4 H2O(l)

- [Rate]Fe3O4 = - (1/4) [Rate]H2 = + (1 / 3 ) [Rate]Fe = + ( 1 / 4 ) [Rate]H2O

Question 1

rate of disappearance of Fe3O4   = ( 1 / 4 ) x  rate of disappearance of H2

= 7.1 / 4 =  1.775 M/s

Question 2

rate of disappearance of Fe3O4 =   (1 / 3 ) x [ Rate of appearance of Fe ]

Question 3

rate of appearance of H2O = ( 4/3 ) x  [ rate of appearance of Fe ] = ( 4/3 ) x 4.9 , M/s =  6.533 M/s

Question 4

Rate of appearance of Fe = 3 x [ rate of disappearance of Fe3O4 ]

Question 5

rate of appearance of H2O = 4 x [ rate of disappearance of Fe3O4 ]

Question 6

rate of disappearance of H2 = 4 x   [ rate of disappearance of Fe3O4 ] = 4 x  6.6 M/s =  26.4 M/s

Question 7

rate of disappearance of H2 = ( 4 / 3 ) [ rate of appearance of Fe ]

Question 8

rate of appearance of Fe = 3 x [ rate of disappearance of Fe3O4 ] = 3 x 7.4 M/s = 22.2 M/s

Question 9

rate of appearance of Fe = ( 3/4 ) x [  rate of appearance of H2O ] = ( 3/4 ) x  8.2 M/s =  6.15 M/s

Question 10

rate of disappearance of H2    = 4 x [ Rate of disappearance of Fe3O4 ]

Please give your feedback


Related Solutions

Use the reaction, 8 Al + 3 Fe3O4 = 4 Al2O3 + 9 Fe
Use the reaction,  8 Al + 3 Fe3O4 = 4 Al2O3 + 9 Fe (a) How many grams of iron are produced by the reaction of 225.0 grams of Al and 225.0 grams of Fe3O4? (b) How many grams of  Al2O3 are also produced in the reaction of (a)?(c) Which reactant is in excess and how many grams remain after reaction?
Use the following reaction to answer the questions below NH4NO2(s) --> N2 (g) + 2H2O(g) 1)...
Use the following reaction to answer the questions below NH4NO2(s) --> N2 (g) + 2H2O(g) 1) What is the volume produced when 37g of NH4NO2 decomposes at 45oC and 0.78 atm 2) what is the partial pressure of nitrogen in this reaction
Calculate the enthalpy change for the reaction: 4 Fe(s) + 3 O2(g) → 2 Fe2O3(s)     ...
Calculate the enthalpy change for the reaction: 4 Fe(s) + 3 O2(g) → 2 Fe2O3(s)            ΔH°rxn = ? where: 2 Fe(s) + 6 H2O(ℓ) → 2 Fe(OH)3(s) + 3 H2(g)               ΔH1° = +321.8 kJ                     2 H2O(ℓ) → 2 H2(g) + O2(g)                               ΔH2° = +571.7 kJ Fe2O3(s) + 3 H2O(ℓ) → 2 Fe(OH)3(s)                                 ΔH3° = +288.6 kJ
2Fe2O3(s)+3 CO2(g)+4 Fe(s) A) if 2.70 g of Fe2O and 4.05 of carbon react, what mass...
2Fe2O3(s)+3 CO2(g)+4 Fe(s) A) if 2.70 g of Fe2O and 4.05 of carbon react, what mass of iron is expected to form? B) what was the limiting reactant? C) How much excess reagent (in grams) is left at the end of the reaction? D) if percent yield is 92%, what mass of iron was actually obtained in the reaction? (Actual yield?)
Fe2O3(s) + 3 CO(g) → 2 Fe(s) + 3 CO2(g) In the preceding reaction, _____ is...
Fe2O3(s) + 3 CO(g) → 2 Fe(s) + 3 CO2(g) In the preceding reaction, _____ is in elemental form and has a standard enthalpy of ______ . This reaction is a ______ reaction (think heat). The standard enthalpy for the reaction is _______ kJ (3 S.F.)
Fe2O3(s) + 3 CO(g) —> 2 Fe(s) + 3 CO2(g) delta H = ___ a. Calculate...
Fe2O3(s) + 3 CO(g) —> 2 Fe(s) + 3 CO2(g) delta H = ___ a. Calculate delta H for the reaction above using the following know thermochemical reactions 2Fe(s) + 3/2 O2(g) —> Fe2O3(s) delta h=-824.2 kJ CO(g) + 1/2 O2(g) —> CO2(g) delta h=-282.7. b. Is this reaction endothermic, exothermic, or both? How do you know?
1/ a/ When the iron rusts, the reaction below takes place. 4 Fe (s) + 3...
1/ a/ When the iron rusts, the reaction below takes place. 4 Fe (s) + 3 O2 (g) → 2 Fe2O3 (s) ΔH = -1 643 kJ What is the heat of formation (ΔHof) of Fe2O3? Is a calculation necessary? b/ The equation for the decomposition of mercury (II) oxide is as follows. 2 HgO (s) + 182 kJ → 2 Hg (l) + O2 (g) Determine ΔHof for HgO (s)? c/ Calculate ΔH in the following reactions. CO (g)...
Iron can be formed according to the following reaction: Fe3O4(s) + 4H2(g) ⇌ 3Fe(s) + 4H2O(g)...
Iron can be formed according to the following reaction: Fe3O4(s) + 4H2(g) ⇌ 3Fe(s) + 4H2O(g) Kc = 0.00178 at 25 oC In a 1.00 L container is 2.13 grams of Fe3O4, 1.27 grams of Fe, and 0.9377 grams of H2. If the reaction is at equilibrium, how many grams of H2O are in the container?
9. Given the following reactions 2 Fe (s) + 3 CO2 (g)→ Fe2O3 (s) + 3...
9. Given the following reactions 2 Fe (s) + 3 CO2 (g)→ Fe2O3 (s) + 3 CO (g) ΔHorxn = +28.0 kJ 4 CO (g) + Fe3O4 (s)→ 3 Fe (s) + 4 CO2 (g) ΔHorxn = -12.5 kJ the enthalpy of the reaction (ΔHorxn) of Fe2O3 with CO 3 Fe2O3 (s) + CO (g)→ CO2 (g) + 2 Fe3O4 (s) is_______. 10. Given the following reactions N2 (g) + O2 (g)→ 2 NO (g) ΔHorxn = +180.7 kJ 2...
2 fe + 6 hcl - 2 fecl3 + 3 h2 a. how much fe is...
2 fe + 6 hcl - 2 fecl3 + 3 h2 a. how much fe is required to generate 6 moles of h2 gas if 17.0 moles of hcl is added to enough iron that the hcl is completely used up, how many hydrogen will be produced? c. how much hcl is required to completely react with 2.8 moles of iron?
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT