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If an electrical current of 610 mA is passed through an electrochemical cell for 15.5 minutes, what charge, in coulombs, is transferred through the cell?
Charge passed through cell = C
If the charge calculated in the first part of this question is passed through a cell constructed of copper electrodes immersed in an acidic solution of copper sulfate (0.5 M CuSO4/0.1 M H2SO4), what mass of copper, in mg, will be deposited on the cathode?
Name the anion obtained by removing one oxygen atom from the perbromate ion, BrO4 -
what volume of 0.150 M KCl solution is required to react completely with 0.150 L of a 0.175 M Pb(NO3)2 solution according to the chemical reaction
Carbon dioxide makes up approximately 0.04% of the Earth's atmosphere. If you collect a 2.0L sample from the atmosphere at sea level (1.00 atm) on a warm day
Suppose you were given a pure stereoisomer that rotated the plane polarized light either +60 degrees or -120 degrees, i.e a uniform colour is observed for both of these readings.
How many peaks would you expect to find in the NMR spectrum of caffeine? What characteristic absorption bands would you expect to find in the infrared spectrum of caffeine?
If a solution is made by adding 83 grams of sodium hyroxide to 750 ml of water what is the percent by mass of sodium hydroxide in this solutions ?
The lengths of chemical bonds in H2 and in other compounds formed from hydrogen isotops is about .74 x 10^-10 m. Estimate the bond length in molecules where the muon replaces the electron.
Explain why hydrogen which has one electron in its lowest state, should in principle be a metallic conductor in its solid state whereas helium which has two electrons in its lowest energy state should be an insulator.
An equilibrium mixture contains 0.750 mol of each of the products (carbon dioxide and hydrogen gas) and 0.200 mol of each of the reactants (carbon monoxide and water vapor) in a 1.00-L container.
If the equilibrium constant for a one electron redox reaction at 298k is 8.7*10^4, calculate the corresponding change in G and Ecell
When a 5.8 g serving of cereal burns in the same bomb calorimeter, the temperatrue of the calorimeter increases by 1.92 C. Calculate the fuel value of the cereal in kj/g.
What is the free Zn2+ concentration if 0.020 M Zn2+ solution is mixed with an equal volume of 2.0 M NH3? Kf for [Zn(NH3)4]2+ is 4.1 × 10^8
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