Copper deposited on a copper sulphate solution
Question: What mass of copper would you expect to be deposited from a copper (II) sulphate solution using a current of 0.50 A over 10 seconds?
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What is the molar solubility of magnesium hydroxide: in water, in pH 12.00 buffer, and in 0.50M magnesium nitrate
Calculate the vapor pressure at 25 degrees C of an aqueous solution that is 5.50% NaCl by mass. The pure vapor pressure of water at this temperature is 23.78 torr.
Assume that the vapors and solutions are ideal. Calculate the composition (mol% each component) of the condensed liquid. What is the vapor pressure of pure toluene at 94.8°C
Calculate the molar mass of naphthalene given that a solution of 2.11g of naphthalene in 100g of benzene has a freezing-point depression of 0.85 degrees C.
3 Physical Chemistry Questions
350.0 mL of 2.50 M HCL are added to 400.0mL of 5.00 M HCL. Assuming that the volumes are additive, what is the final concentration
How many moles of methane would need to be reacted in order to heat 4.00 kg (~ 1 gallon) of water (Cs = 4.18 J/g-K) from room temperature (25° C) to boiling (100° C)?
Excess Ag2CO3 is added to an 0.2 M K2CO3solution. Calculate the equilibrium concentration of Ag+ under these conditions. Ksp for Ag2CO3 is 8.1 x 10^-12. Ag2CO3(s, excess) <----> 2Ag^+(aq) + CO3^-2(aq)
Why is the dissolving of salt sometimes an exothermic and sometimes an exothermic process
Calculate the pre-equilibrium concentration of Fe3+(aq) in a solution made by mixing 2.8 mL of 2.010?3 M Fe(NO3)3 and 7.2 mL of 2.010?3 M NaSCN. Assume the final volume is 10.0 mL.
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