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A Cu/Cu2+ concentration cell has a voltage of 0.20 V at 25 °C. The concentration of Cu2+ in one of the half-cells is 1.4×10-3M .
What is the concentration of Cu2+ in the other half-cell? (Assume the concentration in the unknown cell to be the lower of the two concentrations.)
[Cu^2+]= __________M
Assume that the volume of the mixture equals the sum of the pure components volumes. Also assume that all alcohol and water are completely miscible. Calculate the densities (kg/m3) of solutions A and B and the mixture containing 25% ethyl alcohol ..
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determine how much energy will be required to heat 69.7 gal of h2o from 22 degree celsius to 110 degree celsius if it
Calculate the pH when 27.6 mL of 0.048 MHCl is added to 100.0 mL of the above buffer.
a solution contains 50.0g of heptane c7h16and 50.0g of octane c8h18 at 25 degrees c.the vapor pressures of pure heptane
Question- Consider the neutral form of the amino acid histidine, given a pH of 3.00, how many mL of 0.050M HClO4 should be added to 25mL of 0.040M Histidine
Looking at the table of first ionization energy, if the n=1 shell held 3 electrons max instead of 2, then the first ionization energy for Li(g) would be around _____ MJ/mol.
If the solubility of a gas is 7.5 g/L at 404 kPa pressure, what is the solubility of the gas when the pressure is 202 kPa?
the density of aluminum is 2.70 gcm3. a piece of foil that is 10.00 cm on each side has a mass of 440. mg. how thick is
methyl amine (CH3NH2 Kb= 3.6x10^-4) with 25.0 mL OF 0.10 M benzoic acid (C6H5COOH Ka = 6.3x10^-5), will the resulting solution be acidic, basic, or neutral?
The methane (CH4) gas in a 10.00L container at 305oC and 101 kPa pressure was burned in excess oxygen. What is the mass of carbon dioxide added to the atmosphere from this combustion
Calculate the potential of a zinc electrode immersed in 0.0100M in Zn(NH3)4 2+ and 0.25M in NH3 B4 for Zn(NH3)4 2+ is 7.76*10^8
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