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What is the Keq for a chemical reaction which has Eo of +0.50v and a 3 electron exchange?
Calculate the mass of KClO3 decomposed. The vapor pressure of water at 28 °C is 28.3 mmHg. (Hint: The gases collected are a mixture of oxygen and water vapor
what is the theoretical yield of zinc iodide if a 2.0-g sample of zinc was used with 6.5 grams of
What is the average velocity of nitrogen molecules at 24o C. At what temperature would oxygen molecules have the same average velocity as the N2 above
What does the magnetic quantum number determine. Check all that apply. A.) the possible number of electrons on particular orbital B.) the energy of an orbital C
the carbon-14 decay rate of a sample obtained from a young tree is 0.238 disintegration per second per gram of the
Calculate the pH of 1.00 L of a buffer that is 0.200 M in HC2H3O2 and 0.100 M in NaC2H3O2. The Ka of HC2H3O2 = 1.8E-5
When 5.0 g of CaCl2 was dissolved in 50ml of water in a coffee cup calorimeter, the temperature of the solution rose from 22.3 C to 30.5 C. What is the q solution in Joules and what is the q rxn in Joules?
How much heat does your body lose when 1.5 g of sweat evaporates from your skin at 25 C? (Assume that the sweat is only water.) The heat of vaporization of water at 25 C is 44.0 kJ/mole.
we were given freezing point and density and were asked to find kf and in second question enthalpy and entropy values
If there is a DBL bond do we always start on one with it even though the other bonds will be a higher number? and is that the same for triple bonds over dbl bonds
What mass (in grams) of NH4Cl is needed to prepare 450mL of 0.251 M NH4Cl solution?
How may (a) neutral (b) acidic and (c) alkaline aqueous solutions be defined in terms of concentrations of hidrogen and hydroxyl ions and the pH
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