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Consider an electrochemical cell constructed from the following half cells, linked by a KCl salt bridge.
• a Fe electrode in 1.0 M FeCl2 solution
• a Sn electrode in 1.0 M Sn(NO3)2 solution
(a) Find the balanced overall (net) cell reaction
calculate the freezing and boiling points of each of the following solutions. 0.40 mol ethylene glycol and 0.17mol KBr in 122 g H2O.
In a 0.1 molar solution of NaCl in water, which one of the following will be closest to 0.1?" A) the mole fraction of NaCl B) The mass fraction of NaCl
Using the Grubbs test, decide wheter the value 216 would be rejected from the set of results 192, 216, 202, 195 and 204. G ( 95% confidence) : 1.463, 1.672, 1.822, 1.938, 2.032
A 1.30 g sample of dry ice is added to a 745 mL flask containing nitrogen gas at a temperature of 25.0 degrees Celcius and a pressure of 715 mmHg.
what is the molarity of a solution that contains 5.2g urea (molecular weight = 60 amu) in 250g of benzene?
The rate constant for a certain reaction is = 5.70×10-3 s^-1. If the initial reactant concentration was 0.650 M, what will the concentration be after 14.0 minutes.
What types of intermolecular forces would you expect to exist among molecules of 1-butanol?
a 7.95 L Container holds a mixture of two gases at 37 degrees celcius. the partial pressure of gas A and gas B, respectively, are .287 atm and .698 atm. if .210 mol a third gas is added with no change in volume or temperature.
How many grams of benzoic acid (C6H5COOH) are contained in a 100.0 mL solution at 0.39 M concentration?
How many electrons are transferred in the following oxidation-reduction reaction?
A 5.50 g sample of an unknown is dissolved in 251. g of benzene. The freezing point of the solution is 1.02 C below the normal freezing point of pure benzene.
Calculate the volume of 1M solution of HCl needed for 1 unit shift of the pH of thhe following solutions:
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