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A voltaic cell utilizes the following reaction and operates at 298 K:
3Ce4+(aq)+Cr(s)→3Ce3+(aq)+Cr3+(aq)
What is the emf of this cell when [Ce4+]= 2.5 M , [Ce3+]= 1.9×10-2 M , and [Cr3+]= 1.1×10-2 M?
What is the emf of this cell when [Ce4+]= .39 M , [Ce3+]= .77 M , and [Cr3+]= 1.3 M?
How has the learning of Organisational Behaviour impacted on your thinking, behaviour and approaches both as an individual and as a team member?
A 19 mL sample of a solution of Li2S was diluted with water to 81 mL. A 25 mL sample of the dilute solution was found to contain 0.9 M Li+. What was the concentration of Li2S in the original undiluted solution
why is it important to use only the minimal amt of hot solventneeded to achieve a recrystallization? what would be the
Why it is important for isotopes to have short half lives when used in medicine.
If 69.5 kJ of heat is applied to a 1032 g block of metal, the temperature of the metal increases by 11.4°C. Calculate the specific heat capacity of the metal in J/g°C.
Which of the following substances have a standard heat of formation (?Hf°) of zero? Fe at 1200 °C Cl2(g) at 2 atm O2(g) at 25.0 °C and 1 atm C2H6(g) at standard conditions
The pressure of hydrogen fluoride in Agent P's lab is lower than expected and rises more quickly as the temperature is increased than the ideal gas law predicts. Suggest an explanation. Are we dealing with a real or ideal gas
The arsenic in a 1.223 g sample of a pesticide was converted to H3AsO4 by suitable treatment. The acid was then neutralized, and 40.00 ml of 0.07891 M AgNO3 was added to precipitate the arsenic quantitatively as Ag3AsO4.
At 20 degree C, the vapor pressure of C2H5OH (ethyl alcohol) is 43.9 torr. The vapor pressure of water at this temperature is 17.5 torr. These liquids behaved ideally. What would be the vapor pressure of a solution prepared by mixing 100 g of ethy..
An object has a mass of 185 grams, and density of 1.27 g/mL. What is the volume of this object, in milliters?
In a hot summer, why would it feel cooler near lakes and rivers than in other areas of the same park? Explain your answer.
With the above laboratory data, please find with absolute error: (1) Volume of KIO3 added, (2) Moles of IO3- dispensed, (3) Moles of I3- produced, (4) Moles of C6H8O6 in sample, and (5) Mass (in grams) of C6H8O6 in sample. Please see attached photo f..
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