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An external direct-current power supply is connected to two platinum electrodes immersed in a beaker containing 1.0 M CuSO4(aq) at 25°C, as shown in the diagram above. As the cell operates, copper metal is deposited onto one electrode and O2(g) is produced at the other electrode
A saturated solution of PbCl2 is found to contain 2.88*10^-2 M chloride ions. What is the correct value of the solubility product
Explain why an optically inactive product is obtained when (-)-3-methyl-1-pentene undergoes catalytic hydrogenation.
Determine what volume would it occupy at zero degree Celsius temperature at same pressure? Express your Answer in units of mL
An unknown consisting of a single sugar gives a negative fermentation test. Which one of the following tests would allow you to decide which of the five sugars used in this experiment you had?
What is the pH at the equivalence point? (Kb of NH3 = 1.8 A 20.0 mL sample of 0.20 M sodium acetate is titrated with 0.11 M HCl(aq). What is the pH after the addition of 50.0 mL HCl(aq)?
changes the freezing temperature of the camphor by -2.10°C. Given camphors freezing-point depression constant of -37.7°C/m, calculate the molar mass of estradiol.
How much potassium nitrate has to dissolve in water to absorb 110 of heat?
A polarization potential arises from a concentration difference between ions in the neighborhood of the electrode and those in the bulk of the electrolyte solution. Calculate the polarization potential in a copper electro-refining cell given the f..
sodium hydroxide do you need to add to the volumetric flask before you dilute the solution to volume with distilled water?
The solid and toluene together weigh 58.34 g. The density of toluene at the temperature of the experiment is 0.864 g/mL. What is the density of the solid?
Since the freezing point of a solution depends on the number of particles, what would you expect the freezing point of 0.1 m solutions of aqueous NaCL and BaCl2?
A soluation of HO-CH2-CH2-OH is prepared by dissolving 651g of ethylene gylcol in 1.50kg of water. Determine the freezing point of the soluaiton and the vapor pressure of water above the solution 25.0 degrees C.
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