For the formation of 6.4 mol of water, which of the following reactions use the most...
For the formation of 6.4 mol of water, which of the following reactions use the most nitric acid?
a) 3Cu+8HNO3 to 3Cu(NO3)2+NO+4H20
b)Al2O3+6HNO3 to Al(NO3)3+3H2O
c) 4Zn+10HNO3 to 4Zn(NO3)2+NH4NO3+3H2O
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For the formation of 6.4 mol of water, which of the following
reactions use the most...
Pre-lab Study Questions 1. Calculate the enthalpy of reaction DHrxno for each of the following reactions using the t...
Pre-lab Study Questions 1. Calculate the enthalpy of reaction DHrxno for each of the following reactions using the tabulated standard enthalpy of formation DHfo. (Show calculation) a. H2O(g) ® H2O(l) b. CaCO3(s) ® CaO(s) + CO2(g) c. CH4(g) + 2 O2(g) ® CO2(g) + 2 H2O(g) 2. Consider the following reaction and the given standard enthalpy of formation DHfo. NH4NO3(s) ® NH4+(aq) + NO3-(aq) DHfo (kJ/mol) -365.6 -132.0 -205.0 a. Calculate the enthalpy of reaction DHrxno for the above reaction...
A solution of three mol hydrochloric acid (pKa-5) in 50 mol of water is mixed with...
A solution of three mol hydrochloric acid (pKa-5) in 50 mol of water is mixed with 1 mol each of the compounds shown below. Please draw reaction equations (including curved arrows) for the acid-base transformations that occur with each of the reagents Which of your reactions is most exergonic (i.e. energetically most preferred? Please explain. (Tip: you will have to use the pka values given on page 3. A strong base has a weak conjugated acid!) Na O Na
A solution of two mol of sulfuric acid in 50 mol of water is mixed with...
A solution of two mol of sulfuric acid in 50 mol of water is mixed with 1 mol each of the compounds shown below. Please draw the reaction equations (including curved arrows) for two thermodynamically favorable (exergonic) acid-base transformations that will occur. Which of your two reactions is most exergonic? Please explain. (Tip: you will have to use the pka values given on page 3. A strong base has a weak conjugated acid!) Na Na Cl
2) Draw the 2 reactions of the weak acid, Carbonic Acid (H2CO3) with water. Which form...
2) Draw the 2 reactions of the weak acid, Carbonic Acid (H2CO3) with water. Which form of carbonic acid predominates at physiological pH? The two pKas of carbonic acid are the following: pK,1 = 6.4 pK,2 = 10.3. (3 points) 3) You have a 0.1 M solution of HCl in water. HCl is a strong acid. What is the pH of this solution? (Show your work or will not receive credit.) (2 pts.) 4) Calculate the pOH of a solution...
please show your work. thank you. The reusable booster rockets of the space shuttle use a...
please show your work. thank you.
The reusable booster rockets of the space shuttle use a mixture of aluminum and ammonium perchlorate as fuel A possible reaction is: 3Al(s) +3NH CIO,(s) Al2O3(s) + AlCly(s) + 3NO(g) + 6H20(g) Calculate AHo for this reaction using the standard enthalpies of formation found in Appendix B of your book and ammonium perchlorate's standard enthalpy of formation ΔΗ:--295 kJ/mol
if you can't answer all ,please don't answer 1) of the reactions below, which one is...
if you can't answer all ,please don't answer
1) of the reactions below, which one is a decomposition reaction? A) Ca(NO3)2 + Na2S -- CdS +2NaNO3 B) NH4Cl- NH3 + HCI C) 2Mg + 02 - 2MgO D) 2N2 + 3H2 → 2NH3 E) 2CH4 + 402 - 2002 + 4H20 miches of - x 1? 2 2) Calculate the percentage by mass of ammonia in cisplatin, PtCl2/NH3 12. A) 12.53 B) 5.68 C) 18.09 D) 11.35 E) 4.67 3)...
re-lab questions. 1. Use the following enthalpies of formation to determine the enthalpy of reaction for...
re-lab questions. 1. Use the following enthalpies of formation to determine the enthalpy of reaction for the decomposition of formic acid, HCOOH(), into CO(g) and H:O() ??9 [CO(g)--110.5 kJ/mol ??''t [ H2O(l) ] -285.5 kJ/mol ??9 [HCOOH(1)] -424.7 kJ/mol 6.5° C When 20 g of Al (s) at 98° C is placed in 50 g of H:00), the final temperature is 2 What was the initial temperature of the water? 2.
steps of solving please 33. Which of the following solutes, dissolved in 1000 g of water,...
steps of solving please
33. Which of the following solutes, dissolved in 1000 g of water, would provide a solution with the lowest freezing point? a. 0.030 mol of barium chloride, BaCl2 b. 0.030 mol of urea, CO(NH)2 c. 0.030 mol of calcium sulfate, CaSO4 d. 0.030 mol of ammonium nitrate, NH4NO3 e. 0.030 mol of acetic acid, CH2COOH
Please show all work. Thank you. 1 Write the balanced half reactions of the following reactions:...
Please show all work. Thank you.
1 Write the balanced half reactions of the following reactions: a. NiO2 + 2 H2O + Fe -Ni (OH)2 + Fe(OH)2 in basic solution b. CO2 + 2 NH,OH →CO + N2 + 3H2O in basic solution WRC c. 2 H+ + H,02 + 2 Fe2+ + Fe3+ + 2 H2O in acidic solution CE d. H+ + 2 H2O + 2 MnO4 + 5 SO2 → Mn* + 5 HSO4 in acidic solution
1. Balance the three copper reactions: + H20 (1) Cu(NO3)2 (aq) + NO2(g) i) Cu (s)...
1. Balance the three copper reactions: + H20 (1) Cu(NO3)2 (aq) + NO2(g) i) Cu (s) + HNO3 (aq) ii) Cu(NO3)2 (aq) + NaOH(aq) Cu(OH)2 (s) + NaNO3(aq) (aq) - iii) Cu(OH)2 (S) Cuo(s) + H2O (1) 2. In reaction (i), suppose you add 4.0 mL of 6 M nitric acid to a sphere of copper metal that weighs 0.65 grams. Which reactant is the limiting reagent? (Show your work)
A solution of three mol hydrochloric acid (pKa-5) in 50 mol of water is mixed with 1 mol each of the compounds shown below. Please draw reaction equations (including curved arrows) for the acid-base transformations that occur with each of the reagents Which of your reactions is most exergonic (i.e. energetically most preferred? Please explain. (Tip: you will have to use the pka values given on page 3. A strong base has a weak conjugated acid!) Na O Na
A solution of two mol of sulfuric acid in 50 mol of water is mixed with 1 mol each of the compounds shown below. Please draw the reaction equations (including curved arrows) for two thermodynamically favorable (exergonic) acid-base transformations that will occur. Which of your two reactions is most exergonic? Please explain. (Tip: you will have to use the pka values given on page 3. A strong base has a weak conjugated acid!) Na Na Cl
2) Draw the 2 reactions of the weak acid, Carbonic Acid (H2CO3) with water. Which form of carbonic acid predominates at physiological pH? The two pKas of carbonic acid are the following: pK,1 = 6.4 pK,2 = 10.3. (3 points) 3) You have a 0.1 M solution of HCl in water. HCl is a strong acid. What is the pH of this solution? (Show your work or will not receive credit.) (2 pts.) 4) Calculate the pOH of a solution...
please show your work. thank you.
The reusable booster rockets of the space shuttle use a mixture of aluminum and ammonium perchlorate as fuel A possible reaction is: 3Al(s) +3NH CIO,(s) Al2O3(s) + AlCly(s) + 3NO(g) + 6H20(g) Calculate AHo for this reaction using the standard enthalpies of formation found in Appendix B of your book and ammonium perchlorate's standard enthalpy of formation ΔΗ:--295 kJ/mol
if you can't answer all ,please don't answer
1) of the reactions below, which one is a decomposition reaction? A) Ca(NO3)2 + Na2S -- CdS +2NaNO3 B) NH4Cl- NH3 + HCI C) 2Mg + 02 - 2MgO D) 2N2 + 3H2 → 2NH3 E) 2CH4 + 402 - 2002 + 4H20 miches of - x 1? 2 2) Calculate the percentage by mass of ammonia in cisplatin, PtCl2/NH3 12. A) 12.53 B) 5.68 C) 18.09 D) 11.35 E) 4.67 3)...
re-lab questions. 1. Use the following enthalpies of formation to determine the enthalpy of reaction for the decomposition of formic acid, HCOOH(), into CO(g) and H:O() ??9 [CO(g)--110.5 kJ/mol ??''t [ H2O(l) ] -285.5 kJ/mol ??9 [HCOOH(1)] -424.7 kJ/mol 6.5° C When 20 g of Al (s) at 98° C is placed in 50 g of H:00), the final temperature is 2 What was the initial temperature of the water? 2.
steps of solving please
33. Which of the following solutes, dissolved in 1000 g of water, would provide a solution with the lowest freezing point? a. 0.030 mol of barium chloride, BaCl2 b. 0.030 mol of urea, CO(NH)2 c. 0.030 mol of calcium sulfate, CaSO4 d. 0.030 mol of ammonium nitrate, NH4NO3 e. 0.030 mol of acetic acid, CH2COOH
Please show all work. Thank you.
1 Write the balanced half reactions of the following reactions: a. NiO2 + 2 H2O + Fe -Ni (OH)2 + Fe(OH)2 in basic solution b. CO2 + 2 NH,OH →CO + N2 + 3H2O in basic solution WRC c. 2 H+ + H,02 + 2 Fe2+ + Fe3+ + 2 H2O in acidic solution CE d. H+ + 2 H2O + 2 MnO4 + 5 SO2 → Mn* + 5 HSO4 in acidic solution
1. Balance the three copper reactions: + H20 (1) Cu(NO3)2 (aq) + NO2(g) i) Cu (s) + HNO3 (aq) ii) Cu(NO3)2 (aq) + NaOH(aq) Cu(OH)2 (s) + NaNO3(aq) (aq) - iii) Cu(OH)2 (S) Cuo(s) + H2O (1) 2. In reaction (i), suppose you add 4.0 mL of 6 M nitric acid to a sphere of copper metal that weighs 0.65 grams. Which reactant is the limiting reagent? (Show your work)
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