6-What is the E°cell (in V) for a redox reaction that has equilibrium constant K =7.8...
6-What is the E°cell (in V) for a redox reaction that has equilibrium constant K =7.8 x 10-2 at 25°C ? Assume 1 electrons are transferred in the balanced redox reaction.
Remember: if you want to express an answer in scientific notation, use the letter "E". For example "4.32 x 104" should be entered as "4.32E4".
7--Consider a hypothetical salt of low solubility, "MX", where M+ is a metal cation and X- is a non-metal anion.
A voltaic cell was set up with a cathode containing metal "M" immersed in a solution containing M+ at a concentration of 1.00 mol L-1. The anode consisted of metal "M" immersed in a saturated solution of "MX".
The measured cell voltage was 0.255 V.
What is the Ksp of "MX" at 25°C ?
Remember: if you want to express an answer in scientific notation, use the letter "E". For example "4.32 x 104" should be entered as "4.32E4".
Homework Answers
Add Answer to:
6-What is the E°cell (in V) for a redox reaction that
has equilibrium constant K =7.8...
Consider a hypothetical salt of low solubility, "MX", where M+ is a metal cation and X-...
Consider a hypothetical salt of low solubility, "MX", where M+ is a metal cation and X- is a non-metal anion. A voltaic cell was set up with a cathode containing metal "M" immersed in a solution containing M+ at a concentration of 1.00 mol L-1. The anode consisted of metal "M" immersed in a saturated solution of "MX". The measured cell voltage was 0.429 V. What is the Ksp of "MX" at 25°C ? Remember: if you want to express...
1--What is E°cell for the following hypothetical reaction exactly as written (in volts), given the standard...
1--What is E°cell for the following hypothetical reaction exactly as written (in volts), given the standard electrode potential (E°) values below? X(s) + Y2+(aq) → X2+(aq) + Y(s) X2+(aq) + 2 e- → X(s) E° = -0.69 V Y2+(aq) + 2 e- → Y(s) E° = -2.45 V 2--In the following spontaneous voltaic cell, which of the following statements are TRUE? Select as many answers as are correct however points will be deducted for incorrect guesses. Pt(s)|H2(g)|H+(aq)|| Ag(s)|Ag+(aq) Select one...
What is ΔrG° for a reaction (in kJ mol-1) which has equilibrium constant K = 1.0...
What is ΔrG° for a reaction (in kJ mol-1) which has equilibrium constant K = 1.0 x 1010 at the temperature 16.3 °C? You have 5 attempts at this question. Remember: if you want to express an answer in scientific notation, use the letter "E". For example "4.32 x 104" should be entered as "4.32E4".
What is the equilibrium constant for a reaction at temperature 51.4 °C if the equilibrium constant...
What is the equilibrium constant for a reaction at temperature 51.4 °C if the equilibrium constant at 41.6 °C is 13.65? For this reaction, A, H = 10.4 kJ mol-? You have 5 attempts at this question. Remember: if you want to express an answer in scientific notation, use the letter "E". For example "4.32 x 104" should be entered as "4.32E4".
What is the equilibrium constant for a reaction at temperature 42.5 °C if the equilibrium constant...
What is the equilibrium constant for a reaction at temperature 42.5 °C if the equilibrium constant at 19.1 °C is 26.38? For this reaction, AH = 23.8 kJ mol-1 You have 5 attempts at this question. Remember: if you want to express an answer in scientific notation, use the letter "E". For example "4.32 x 104" should be entered as "4.32E4".
What is the equilibrium constant for a reaction at temperature 87.2 °C if the equilibrium constant...
What is the equilibrium constant for a reaction at temperature 87.2 °C if the equilibrium constant at 78.0 °C is 9.82? For this reaction, ΔrH = 14.9 kJ mol-1 . You have 5 attempts at this question. Remember: if you want to express an answer in scientific notation, use the letter "E". For example "4.32 x 104" should be entered as "4.32E4".
What is the molar solubility (in mol L-1) of a salt in pure water with general...
What is the molar solubility (in mol L-1) of a salt in pure water with general molecular formula MX (where M is a cation and X is an anion) that has Ksp = 1.57 x 10-8 ? You have 5 attempts at this question. Remember: if you want to express an answer in scientific notation, use the letter "E". For example "4.32 x 104 should be entered as "4.32E4" Answer: Check What is the molar solubility (in mol L-!) of...
1-The rate constant of a chemical reaction was measured at several temperature values and a plot...
1-The rate constant of a chemical reaction was measured at several temperature values and a plot of ln k (on the y-axis) was plotted against 1/T (on the x-axis, temperature was measured in Kelvin). If the slope of the plot was -9.21 x 103 K and the y-intercept was 13.0, what is the activation energy (EA) of the reaction in kJ mol-1? 2-In an enzyme-catalyzed reaction, the rate of the reaction depends on which of the following at very low...
A weak base has KB = 1.88 x 10-2. What is the pKA of its conjugate...
A weak base has KB = 1.88 x 10-2. What is the pKA of its conjugate acid? Remember: if you want to express an answer in scientific notation, use the letter "E". For example "4.32 x 104" should be entered as "4.32E4".
please help me with both. TIA The following chemical reaction: A → products shows zero order...
please help me with both. TIA
The following chemical reaction: A → products shows zero order kinetics with respect to A; rate = k[A]º. if k = 9.65 x 10-3 moll's and the initial concentration of A is 0.622 mol L-1, what is the half life of this reaction in minutes? You have 5 attempts at this question. Remember: if you want to express an answer in scientific notation, use the letter "E". For example "4.32 x 104 should be...
What is the equilibrium constant for a reaction at temperature 51.4 °C if the equilibrium constant at 41.6 °C is 13.65? For this reaction, A, H = 10.4 kJ mol-? You have 5 attempts at this question. Remember: if you want to express an answer in scientific notation, use the letter "E". For example "4.32 x 104" should be entered as "4.32E4".
What is the equilibrium constant for a reaction at temperature 42.5 °C if the equilibrium constant at 19.1 °C is 26.38? For this reaction, AH = 23.8 kJ mol-1 You have 5 attempts at this question. Remember: if you want to express an answer in scientific notation, use the letter "E". For example "4.32 x 104" should be entered as "4.32E4".
What is the molar solubility (in mol L-1) of a salt in pure water with general molecular formula MX (where M is a cation and X is an anion) that has Ksp = 1.57 x 10-8 ? You have 5 attempts at this question. Remember: if you want to express an answer in scientific notation, use the letter "E". For example "4.32 x 104 should be entered as "4.32E4" Answer: Check What is the molar solubility (in mol L-!) of...
please help me with both. TIA
The following chemical reaction: A → products shows zero order kinetics with respect to A; rate = k[A]º. if k = 9.65 x 10-3 moll's and the initial concentration of A is 0.622 mol L-1, what is the half life of this reaction in minutes? You have 5 attempts at this question. Remember: if you want to express an answer in scientific notation, use the letter "E". For example "4.32 x 104 should be...
Most questions answered within 3 hours.
-
Where is the error in this code sequence?
String s1 = "Hello";
String s2 = "ello";...
asked 10 months ago -
Financial data for Joel de Paris, Inc., for last year
follow:
Joel de Paris, Inc.
Balance...
asked 10 months ago -
Consider this reaction:
Al2(SO4)3 (aq)+ BaCl3
(aq) Al2Cl6 (aq)- +
3BaSO4(s) . What is the...
asked 10 months ago -
Suppose that Savneet is considering increasing her
recent random sample from 20 car rentals to 40...
asked 10 months ago -
Trucks arrive at an unloading terminal at an average rate of 120
per hour.
Trucks arrive...
asked 10 months ago -
Why are methanol and ethanol completely soluble in water while
octanol is not very little soluble....
asked 10 months ago -
A facilities manager at a university reads in a research report
that the mean amount of...
asked 10 months ago -
When the CuSO4 is rehydrated by adding water to the anhydrous
compound, is this an endothermic...
asked 10 months ago -
A ray of sunlight is passing from diamond into crown glass; the
angle of incidence is...
asked 10 months ago -
A block of mass 0.249 kg is placed on top of a light, vertical
spring of...
asked 10 months ago -
how do the kidneys compensate in the presences of acidosis
a) trigger hyperventilate
b) reserve acid...
asked 10 months ago -
Question 501 pts
The rental rate of capital to the firm increases. Which of the
following...
asked 10 months ago