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hi, viuld you kindly help me with wuestions 4 - 6 please,
thank you
QUESTION 6...
QUESTION 4 0.5 points Save Answer A 6.32 g sample of ethanol (C2H5OH) is burned in...
QUESTION 4 0.5 points Save Answer A 6.32 g sample of ethanol (C2H5OH) is burned in a bomb calorimeter with a heat capacity, C = 5.65 kJ/°C. C2H5OH() + 3 O2(g) 2 CO2(g) + 3 H2O(g) AH®rxn = -1235 kJ If the initial temperature is 25.0°C, what is the final temperature (in °C) of the calorimeter? The molar mass of ethanol is 46.07 g/mol. Remember, in the heat equation, q = m*s*AT, heat capacity is equivalent to C= m*s, giving...
Please explain the correct answer to both questions. Thank you! Incorrect Question 19 0/1 pts The...
Please explain the correct
answer to both questions. Thank you!
Incorrect Question 19 0/1 pts The value of A Sº for the catalytic hydrogenation of acetylene to ethene, C2H2(g) + H2(g) →C2H4 (g) is_ J/K.mol. Use the following thermodynamic quantities for selected substances at 298.15 K (25°C). Substance AHºf (kJ/mol) AG°f (kJ/mol) S (J/K-mol) 2.84 Carbon C(s, diamond) 1.88 C(s, graphite) 0 C2H2(g) 226.7 C2H4 (g) 52.30 C2H6 (g) -84.68 CO(g) -110.5 CO2 (g) -393.5 209.2 68.11 -32.89 -137.2 -394.4...
QUESTION 4 For which compound does 0.256 mole weigh 12.8 g? a. CO2 b. CH3CI OCC2H6...
QUESTION 4 For which compound does 0.256 mole weigh 12.8 g? a. CO2 b. CH3CI OCC2H6 d. C2H40 O e none of these QUESTION 5 How many atoms of calcium are present in 83.4 g of calcium? a. 1.25 x 1024 5.3.46 x 10-24 OC 5.02 x 1025 Od. 6.02 x 1023 e. None of these QUESTION 6 Select the set of coefficients from the response list that correctly balances the equation. _N2 + O2 NO a. 3,1,2 b. 1,...
Please help with #4&5. Will rate high is answers are correct. Thank you! 4. Using the...
Please help with #4&5. Will rate high is answers are
correct. Thank you!
4. Using the given standard molar entropies, calculate the standard entropy change, AS, for the following reaction at 298 K: 2 H2(g) + O2(g) → 2 H20(1) O2(g) 205.0 (H2O(1) 79.91 H2(g) Sº (J/K) 130.58 a) 326.3J/K b) 88.5 J/K c) 306.34 J/K d) -306.34 J/K e) -386.25 J/K 5. Calculate the standard free-energy change for the formation of NO(g) from N2(g) and O2(g) at 298 K:...
QUESTION 24 4 Consider the following reversible reaction: H2(g) + 12(9) 2 HI(g) K = 64.0...
QUESTION 24 4 Consider the following reversible reaction: H2(g) + 12(9) 2 HI(g) K = 64.0 at a particular temperature. A reaction mixture initially contains 0.945 M H2 and 0.945 M 12. Determine the equilibrium concentration of HL Click Save and Submit to save and submit. Click Save All Answers to save all answers. Save All Answer 0 1 2 v
please help me with all the questions thank you 38) Determine the final temperature of a...
please help me with all the questions thank you
38) Determine the final temperature of a gold nugget (mass 376 g) that starts at 398 K and loses 4.85 kJ of heat to a snowbank when it is lost. The specific heat capacity of gold is 0.128 J/g°c A) 133 K B) 398 K C) 187 K D) 297 K E) 377 K 39) A 6.55 g sample of aniline (C6H5NH2, molar mass 93.13 g/mol) was combusted in a bomb...
Please help with all 6 questions s Question Completion Status: R1 = 4 Ω What is...
Please help with all 6 questions
s Question Completion Status: R1 = 4 Ω What is the current flowing through this circuit, in amperes? QUESTION 2 What is the potential change across resistor R1, in volts? QUESTION 3 Going around the loop in a clockwise direction, what is the potential change across battery 2, in volts? Click Save and Submit to save and submit. Click Sove All Answers to save all answers ес.blackboard.com/webapps/assessment/take/launch.jsp?course-assessmentjd--335204_1&course Question Completion Status: QUESTION 4 Questions 4-6...
Both answers are not correct so can you help me to solve them. Thank u QUESTION...
Both answers are not correct so can you help me to solve them.
Thank u
QUESTION 3 A T-bill has 247 days to maturity. The T-bill par value is $1,000 and has an asked of 1.785%. What is the T-bill asked price in dollars? 988.10 QUESTION 4 A T-bill with 41 days to maturity has a $10,000 par value, a bid price of $9,995 and an asked price of $9,997. What is the asked yield? 0.2675 Click Save and Submit...
13 to 15 thank you QUESTION 13 Which two elements have the same ground-state electron configuration?...
13 to 15 thank you
QUESTION 13 Which two elements have the same ground-state electron configuration? O Cu and Ag O Pd and Pt O Cl and Ar O Fe and Cu No two elements have the same ground-state electron configuration. QUESTION 14 How many moles of CaCl2 are formed in the neutralization of 138 mL of 0.352 M Ca(OH)2 with aqueous HCI? (sig. figs. matter for this one) QUESTION 15 How many kJ of heat are released when 15.75...
please help asap, thank you QUESTION 15 With respect to any voltaic cell, at what electrode...
please help asap, thank you
QUESTION 15 With respect to any voltaic cell, at what electrode does reduction occur and what is the sign convention given to this electrode? cathode; "." terminal cathode;"+" terminal anode;"+" terminal anode;"-" terminal Click Save and Submit to save and submit. Click Save All Answers to save all answers. Type here to search
QUESTION 4 0.5 points Save Answer A 6.32 g sample of ethanol (C2H5OH) is burned in a bomb calorimeter with a heat capacity, C = 5.65 kJ/°C. C2H5OH() + 3 O2(g) 2 CO2(g) + 3 H2O(g) AH®rxn = -1235 kJ If the initial temperature is 25.0°C, what is the final temperature (in °C) of the calorimeter? The molar mass of ethanol is 46.07 g/mol. Remember, in the heat equation, q = m*s*AT, heat capacity is equivalent to C= m*s, giving...
Please explain the correct
answer to both questions. Thank you!
Incorrect Question 19 0/1 pts The value of A Sº for the catalytic hydrogenation of acetylene to ethene, C2H2(g) + H2(g) →C2H4 (g) is_ J/K.mol. Use the following thermodynamic quantities for selected substances at 298.15 K (25°C). Substance AHºf (kJ/mol) AG°f (kJ/mol) S (J/K-mol) 2.84 Carbon C(s, diamond) 1.88 C(s, graphite) 0 C2H2(g) 226.7 C2H4 (g) 52.30 C2H6 (g) -84.68 CO(g) -110.5 CO2 (g) -393.5 209.2 68.11 -32.89 -137.2 -394.4...
QUESTION 4 For which compound does 0.256 mole weigh 12.8 g? a. CO2 b. CH3CI OCC2H6 d. C2H40 O e none of these QUESTION 5 How many atoms of calcium are present in 83.4 g of calcium? a. 1.25 x 1024 5.3.46 x 10-24 OC 5.02 x 1025 Od. 6.02 x 1023 e. None of these QUESTION 6 Select the set of coefficients from the response list that correctly balances the equation. _N2 + O2 NO a. 3,1,2 b. 1,...
Please help with #4&5. Will rate high is answers are
correct. Thank you!
4. Using the given standard molar entropies, calculate the standard entropy change, AS, for the following reaction at 298 K: 2 H2(g) + O2(g) → 2 H20(1) O2(g) 205.0 (H2O(1) 79.91 H2(g) Sº (J/K) 130.58 a) 326.3J/K b) 88.5 J/K c) 306.34 J/K d) -306.34 J/K e) -386.25 J/K 5. Calculate the standard free-energy change for the formation of NO(g) from N2(g) and O2(g) at 298 K:...
QUESTION 24 4 Consider the following reversible reaction: H2(g) + 12(9) 2 HI(g) K = 64.0 at a particular temperature. A reaction mixture initially contains 0.945 M H2 and 0.945 M 12. Determine the equilibrium concentration of HL Click Save and Submit to save and submit. Click Save All Answers to save all answers. Save All Answer 0 1 2 v
please help me with all the questions thank you
38) Determine the final temperature of a gold nugget (mass 376 g) that starts at 398 K and loses 4.85 kJ of heat to a snowbank when it is lost. The specific heat capacity of gold is 0.128 J/g°c A) 133 K B) 398 K C) 187 K D) 297 K E) 377 K 39) A 6.55 g sample of aniline (C6H5NH2, molar mass 93.13 g/mol) was combusted in a bomb...
Please help with all 6 questions
s Question Completion Status: R1 = 4 Ω What is the current flowing through this circuit, in amperes? QUESTION 2 What is the potential change across resistor R1, in volts? QUESTION 3 Going around the loop in a clockwise direction, what is the potential change across battery 2, in volts? Click Save and Submit to save and submit. Click Sove All Answers to save all answers ес.blackboard.com/webapps/assessment/take/launch.jsp?course-assessmentjd--335204_1&course Question Completion Status: QUESTION 4 Questions 4-6...
Both answers are not correct so can you help me to solve them.
Thank u
QUESTION 3 A T-bill has 247 days to maturity. The T-bill par value is $1,000 and has an asked of 1.785%. What is the T-bill asked price in dollars? 988.10 QUESTION 4 A T-bill with 41 days to maturity has a $10,000 par value, a bid price of $9,995 and an asked price of $9,997. What is the asked yield? 0.2675 Click Save and Submit...
13 to 15 thank you
QUESTION 13 Which two elements have the same ground-state electron configuration? O Cu and Ag O Pd and Pt O Cl and Ar O Fe and Cu No two elements have the same ground-state electron configuration. QUESTION 14 How many moles of CaCl2 are formed in the neutralization of 138 mL of 0.352 M Ca(OH)2 with aqueous HCI? (sig. figs. matter for this one) QUESTION 15 How many kJ of heat are released when 15.75...
please help asap, thank you
QUESTION 15 With respect to any voltaic cell, at what electrode does reduction occur and what is the sign convention given to this electrode? cathode; "." terminal cathode;"+" terminal anode;"+" terminal anode;"-" terminal Click Save and Submit to save and submit. Click Save All Answers to save all answers. Type here to search
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