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Please help. No need for deep explanation just write the correct answer QUESTION 8 Which of...
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QUESTION 8 Which of the following statements is true? Dissolving NH4Cl in pure water produces a basic pH Dissolving KCl in pure water produces a basic pH Dissolving KCl in pure water produces an acidic pH Dissolving NH4Cl in pure water produces an acidic pH QUESTION 9 What is the pH of a 1.0*10 MHI solution? HI is a strong acid. (Hint: the pH is not 9.0) pH...
umenie Will Due to run if you leave the test. Remaining Time: 39 minutes, 49 seconds....
umenie Will Due to run if you leave the test. Remaining Time: 39 minutes, 49 seconds. Less than half of the time rer Question Completion Status: Close Window Moving to another question will save this response. Question 17 of 25 Save and Question 17 4 points In a titration experiment, 974 mL of 0.696 M KOH was needed to neutralize 19 mL H2SO4 solution. What is the concentration (M) of the original sulfuric acid solution (Answer in two decimal places)...
Remaining Time: 1 hour, 33 minutes, 49 seconds. Question Completion Status: QUESTION 5 and use com...
Remaining Time: 1 hour, 33 minutes, 49 seconds. Question Completion Status: QUESTION 5 and use com Taxes can st. In a gas mixture, the partial pressures are argon 3 atm, neon 25mmHg, and nitrogen 175mmHg. What is the total pressure, in mmHg, exerted by the gas mixture? 2480 mmHg 203 mmHg 2030 mmHg 2200 mmHg QUESTION 6 540 dl of a gas at STP weighs 8 g, what is the molar mass of the gas? 3.26 g/mol 9.7 g/mol 326...
W ackboard Remaining Time: 23 minutes, 58 seconds. Question Completion Status: QUESTION 15 Which of the...
W ackboard Remaining Time: 23 minutes, 58 seconds. Question Completion Status: QUESTION 15 Which of the following is FALSE for a 0.150 M solution of a weak base with a kb - 1.40x10? The equilibrium concentration of hydroxide ions is 4.58x10-3M The solution would have a pH = 11.66. The equilibrium concentration of the conjugate acid would be 9.16x103 M. The conjugate acid would have a Ka - 7.14x10-11 The equilibrium concentration of the base would be 0.145 M. QUESTION...
please help Question Completion Status: QUESTION 11 Which one is correct answer for Kb? CN (aq)...
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Question Completion Status: QUESTION 11 Which one is correct answer for Kb? CN (aq) + H20 (1) + HCN (aq) + OH- (aq) ОА OB.F (aq) + H20 (1) + HF(aq) + OH-(aq) OC Zn(OH)6 (aq) + H2O(l) — [Zn(OH)5(OH2)]+ e- 2+ HCN(aq) + F(aq) + CN (aq) + HF(aq) E. Both A and B is for Kb Click Save and Submit to save and submit. Click Save All Answers to save all answers. QUESTION 12 of the...
question 27 Remaining Time: 27 minutes, 33 seconds. Question completion Status QUESTION 27 po Calculate the...
question 27
Remaining Time: 27 minutes, 33 seconds. Question completion Status QUESTION 27 po Calculate the volume of 2.12 moles of nitrogen gas at temperature of 31.7°C and a pressure of 1.35 atm. Report your answer as a numeric response to the correct degree of certainty and include the symbol (g. mL, L, etc.) of the proper final units (0.0821 L'atm mol-K QUESTION 28 The reaction N2 + 3 H2 → 2NH3 is used to produce ammonia. When 450. g...
Remaining Time: 06 minutes, 13 seconds. Question Completion Status: QULUTTUTTO Consider the following reversible reaction equation:...
Remaining Time: 06 minutes, 13 seconds. Question Completion Status: QULUTTUTTO Consider the following reversible reaction equation: 2 NOCI(g) + 2NO(g) + Cl2(9) Ka = 4.5 x 10-4 Complete the following sentences (a-e) by selecting the best choice from the dropdown menus. a) This is an example of a equilibrium b) At equilibrium, this system will contain mostly c) If more Cl2 is added to this system at equilibrium, the reaction will shift towards the reactants d) If some NO is...
if someone can help answer these questions tion 18 O out of 4 points At the...
if someone can help answer these questions
tion 18 O out of 4 points At the start of a reaction, there are 1.05 moles of NO, 0.955 moles of Bry, and 1.15 moles of NOBr in a 5.5 L reaction vessel at 727 "C. From these initial molar concentrations, decide whether the system is at equilibrium. If not, predict which direction the net reaction will proceed. (Hint: Reaction Quotient) 2NO(g) + Br2(g) + 2NOBr() Ke 0.013 Question 19 O out...
Need 9-11 answered PLEASE ANSWER ALL QUESTION 9 1 points Save Answer Aluminum metal shavings (10.0...
Need 9-11 answered
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QUESTION 9 1 points Save Answer Aluminum metal shavings (10.0 g) are placed in 100 mL of 6.00 M hydrochloric acid. At STP, what is the maximum volume of hydrogen which can be produced ? 2 Al (5) + 6 HCl(aq) → 2 AlCl3 (aq) + 3 H2(g) O a. 2.241 6.6.72L O C. 1.34 L O d. 4.48 L QUESTION 10 1 points Save Answer For a set amount of gas at constant...
please Help me!! Remaining Time: 3 hours, 11 minutes, 53 seconds. Question Completion Status: QUESTION 1...
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Remaining Time: 3 hours, 11 minutes, 53 seconds. Question Completion Status: QUESTION 1 The following information is for Bright Eyes Auto Supplies: Bright Eyes Auto Supplies Balance Sheet December 31, 2015 $ 40,000 80,000 100,000 140,000 180,000 250.000 Accounts Payable Salaries and Wages Payable Mortgage Payable Total Liabilities Cash Prepaid Insurance Accounts Receivable Inventory Land Held for Investment Land Buildings $200,000 Less Accumulated Depreciation (60.000 Trademark Total Assets $ 130,000 50,000 150.000 330,000 Common Sock Retained Earnings...
Please help. No need for deep explanation just write
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QUESTION 8 Which of the following statements is true? Dissolving NH4Cl in pure water produces a basic pH Dissolving KCl in pure water produces a basic pH Dissolving KCl in pure water produces an acidic pH Dissolving NH4Cl in pure water produces an acidic pH QUESTION 9 What is the pH of a 1.0*10 MHI solution? HI is a strong acid. (Hint: the pH is not 9.0) pH...
umenie Will Due to run if you leave the test. Remaining Time: 39 minutes, 49 seconds. Less than half of the time rer Question Completion Status: Close Window Moving to another question will save this response. Question 17 of 25 Save and Question 17 4 points In a titration experiment, 974 mL of 0.696 M KOH was needed to neutralize 19 mL H2SO4 solution. What is the concentration (M) of the original sulfuric acid solution (Answer in two decimal places)...
Remaining Time: 1 hour, 33 minutes, 49 seconds. Question Completion Status: QUESTION 5 and use com Taxes can st. In a gas mixture, the partial pressures are argon 3 atm, neon 25mmHg, and nitrogen 175mmHg. What is the total pressure, in mmHg, exerted by the gas mixture? 2480 mmHg 203 mmHg 2030 mmHg 2200 mmHg QUESTION 6 540 dl of a gas at STP weighs 8 g, what is the molar mass of the gas? 3.26 g/mol 9.7 g/mol 326...
W ackboard Remaining Time: 23 minutes, 58 seconds. Question Completion Status: QUESTION 15 Which of the following is FALSE for a 0.150 M solution of a weak base with a kb - 1.40x10? The equilibrium concentration of hydroxide ions is 4.58x10-3M The solution would have a pH = 11.66. The equilibrium concentration of the conjugate acid would be 9.16x103 M. The conjugate acid would have a Ka - 7.14x10-11 The equilibrium concentration of the base would be 0.145 M. QUESTION...
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Question Completion Status: QUESTION 11 Which one is correct answer for Kb? CN (aq) + H20 (1) + HCN (aq) + OH- (aq) ОА OB.F (aq) + H20 (1) + HF(aq) + OH-(aq) OC Zn(OH)6 (aq) + H2O(l) — [Zn(OH)5(OH2)]+ e- 2+ HCN(aq) + F(aq) + CN (aq) + HF(aq) E. Both A and B is for Kb Click Save and Submit to save and submit. Click Save All Answers to save all answers. QUESTION 12 of the...
question 27
Remaining Time: 27 minutes, 33 seconds. Question completion Status QUESTION 27 po Calculate the volume of 2.12 moles of nitrogen gas at temperature of 31.7°C and a pressure of 1.35 atm. Report your answer as a numeric response to the correct degree of certainty and include the symbol (g. mL, L, etc.) of the proper final units (0.0821 L'atm mol-K QUESTION 28 The reaction N2 + 3 H2 → 2NH3 is used to produce ammonia. When 450. g...
Remaining Time: 06 minutes, 13 seconds. Question Completion Status: QULUTTUTTO Consider the following reversible reaction equation: 2 NOCI(g) + 2NO(g) + Cl2(9) Ka = 4.5 x 10-4 Complete the following sentences (a-e) by selecting the best choice from the dropdown menus. a) This is an example of a equilibrium b) At equilibrium, this system will contain mostly c) If more Cl2 is added to this system at equilibrium, the reaction will shift towards the reactants d) If some NO is...
if someone can help answer these questions
tion 18 O out of 4 points At the start of a reaction, there are 1.05 moles of NO, 0.955 moles of Bry, and 1.15 moles of NOBr in a 5.5 L reaction vessel at 727 "C. From these initial molar concentrations, decide whether the system is at equilibrium. If not, predict which direction the net reaction will proceed. (Hint: Reaction Quotient) 2NO(g) + Br2(g) + 2NOBr() Ke 0.013 Question 19 O out...
Need 9-11 answered
PLEASE ANSWER ALL
QUESTION 9 1 points Save Answer Aluminum metal shavings (10.0 g) are placed in 100 mL of 6.00 M hydrochloric acid. At STP, what is the maximum volume of hydrogen which can be produced ? 2 Al (5) + 6 HCl(aq) → 2 AlCl3 (aq) + 3 H2(g) O a. 2.241 6.6.72L O C. 1.34 L O d. 4.48 L QUESTION 10 1 points Save Answer For a set amount of gas at constant...
please Help me!!
Remaining Time: 3 hours, 11 minutes, 53 seconds. Question Completion Status: QUESTION 1 The following information is for Bright Eyes Auto Supplies: Bright Eyes Auto Supplies Balance Sheet December 31, 2015 $ 40,000 80,000 100,000 140,000 180,000 250.000 Accounts Payable Salaries and Wages Payable Mortgage Payable Total Liabilities Cash Prepaid Insurance Accounts Receivable Inventory Land Held for Investment Land Buildings $200,000 Less Accumulated Depreciation (60.000 Trademark Total Assets $ 130,000 50,000 150.000 330,000 Common Sock Retained Earnings...
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