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The standard cell potential (E°cell) for the reaction below is +1.10 V. The cell potential for this reaction is __________ V when the concentration of [Cu2+] = 1.0 × 10-5 M and [Zn2+] = 3.5 M. Zn (s) + Cu2+ (aq) ?? Cu (s) + Zn2+ (aq)
10.8 g of particular gas occupies a volume of 41.2 dm^3 at 350 K at 3 atm. What would the volume be at 400 K if we assume the gas behaves ideally. what is the molar weight of this gas if we assume it behaves ideally
How can their efficiency be less than 100% and the Law of Conservation of Energy still be valid? An incandescent light bulb functions because of the flow of electric current. Does the incandescent light bulb convert all of the electrical energy to..
The value of deltaS0 for the following reaction is - 233J/K at 250C. What is the entropy of H2 (g) at 250C? C2H2 (g) + 2H2 (g) ----> C2H6 (g) a.131 b.204 c.102 d. 262
Carbonated cola is more acidic than coffee or even orange juice because cola contains phosphoric acid.
How much energy is released when 32.4 g of water freezes? The heat of fusion for water is 6.02 kJ/mol
What is the approximate pH of a solution prepared by adding 20 mL of 0.10 M NaOH to 200 mL of 0.10 M HCl?
Detremine the concentration of chromate solution - Potassium chromate has an absorbance value
Assuming levels of atmospheric CO2 are 390 ppm CO2, what is the pH of rainwater in equilibrium with the atmosphere for the pre-industrial atmospheric CO2 concentration of 280 ppm,v
consider 54.5 ml of a solution of weak acid ha ka 1.00 10-6 which has a ph of 3.700. what volume of water must be
When given a problem with an aqueous solution containing Na3PO4 and you need to find the boiling point of the solution only knowing the solution is 18.7% by mass Na3PO4 and the Kb for water is .512 It also says to consider if the solute is an elec..
The Ka for lactic acid is 1.4x10^-4. What is the pH of this buffer after .10 mol of solid NaOH has been added?
The final temperature of the water and iron was 48.4oC. Assuming that the calorimeter itself absorbs a negligible amount of heat, what was the mass
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