7. For the reaction between carbon and oxygen to form carbon monoxide, beginning with 0.65 mol of C, 2C(s) + O2(g) → 2CO(g) a. how many moles of O2 are required to completely consume the C? b. how many moles of CO are obtained when the C is completely reacted? 8. A reaction of iron metal with oxygen gas produces ferrous oxide (FeO). Fe + 02 →> FeO a. Balance the reaction b. When FeO forms, has Fe been oxidized or has it been reduced? c. How many grams of Fe are required to react completely with 4.22 x 10-3 mol of 02? d. How many grams of FeO are produced from the complete reaction of 17.44g of Fe?

7. For the reaction between carbon and oxygen to form carbon monoxide, beginning with 0.65 mol of C, 2C(s) + O2(g) → 2CO(g) a. how many moles of O2 are required to completely consume the C? b. how many moles of CO are obtained when the C is completely reacted? 8. A reaction of iron metal with oxygen gas produces ferrous oxide (FeO). Fe + 02 →> FeO a. Balance the reaction b. When FeO forms, has Fe been oxidized or has it been reduced? c. How many grams of Fe are required to react completely with 4.22 x 10-3 mol of 02? d. How many grams of FeO are produced from the complete reaction of 17.44g of Fe?

Biochemistry

9th Edition

ISBN:9781319114671

Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Chapter1: Biochemistry: An Evolving Science

Section: Chapter Questions

Problem 1P

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3. Show the calculation of (1) the expected grams of alum (KAI(SO4)2 12 H2O) formed from the reaction of 1.4 grams of aluminum metal and then show the calculation of (2) the % yield if the actual yield of alum is 21.31 grams. Overall reaction is shown below: 2 Al + 2 KOH + 10 H2O + 4 H2SO4 →2 KAI(SO4)2 12 H2O + 3 H2(g)T
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What is the oxidation state of the metal centres in the [Pt(SCN)2)(NH3)2]3×[Fe(C2O4)3]2 complex? a.Pt(II), Fe(II) b.Pt(II), Fe(III) c.Pt(IV), Fe(II) d.Pt(IV), Fe(III)
(b) Identify the type of reaction or mechanism undergone in each case.
2. If 318.0 mL of nitrogen gas measured at 488.9 mmHg and 22.3°C, reacts with excess iodine according to the following reaction, what mass of nitrogen triiodide (molar mass = 394.72) is produced? %3D (1 atm = 760 mmHg and k = °C + 273) N2 (g) + 312 (S) → 2NI3 (S) A) 3.33 g B) 4.33 g C) 13.30 g D) 20.0 g E) 6.65 g Page 20 | 44
At 39.9ºC, a solution of ethanol (XetOH = 0.9006, P * etOH = 130.4 Torr) and isooctane (P * iso = 43.9 Torr) forms a vapor phase with YetOH = 0.6667. The total pressure is 185.9 a. Calculate the activity and the activity coefficient of each component.b. Calculate the total pressure the solution would have if it were ideal.c. Comparing the ideal pressure to the actual pressure, what does this indicate about the molecular interactions?
12. Find the ΔH for the reaction below, given the following reactions and subsequent ΔH values: b. FeO(s) + CO(g) ⟶⟶ Fe(s) + CO2(g) ΔH = __________ 3Fe2O3(s) +CO(g) ⟶⟶ 2Fe3O4 +CO2 (g) ΔH = -68.26 kJ Eq 1 Fe2O3(s) + 3CO(g) ⟶⟶ 2Fe(s) + 3 CO2(g) ΔH = -23.44 kJ Eq 2 Fe3O4(s) + CO(g) ⟶⟶ 3FeO(s) + CO2(g) ΔH = +21.79 kJ Eq 3
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