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Write the electron configuration of Ni. Using the configuration, predict which electrons the atom will most likely lose when it forms Ni2+ and Ni3+. Explain.
Illustrate and show calculations how you would prepare 2 liters of a pH 8 buffer using 0.4 M Na3PO4 and 0.5 M HNO3. Explain reasoning at each step of the way ion calculation.
A carbon-hydrogen compound is burned in an excess of oxygen to give 1.76g of carbon dioxide and 0.900g of water as the products of combustion. What is the empirical formula of the organic compound
What is the concentration of a solution made by diluting 15ml of 6.0 M HCI to a final volume of 750 mL
Which of the following is an accurate comparison of the properties of nitrogen and oxygen. A. Nitrogen uses more oxidation states in its compounds than oxygen does
A reaction with the activation energy Ea= 153.00 kJ/mol, has a rate constant k = 6.400 x 10(-4) at 364.00 Kelvin. Determine the temperature required to increase the rate constant 5 times . R = 8.314 J K-1mol-1
The half life of oxygen-19 is only 29 seconds. Lets say we somehow instantly make a Liter of O-19 in a reactor. So at t = 0 we have 1 Liter of this isotope. What fraction of the O-19 isotope would be present after 5 seconds?
calculate the massvolume percent of a solution in which 168 of is dissolved in enough water to give a total volume of
A volume of 40.0 mL of iron (II) sulfate is oxidized to iron (III) by 20.0 mL of 0.100 M potassium dichromate solution. What is the concentration of the iron (II) sulfate solution
We have one mole each of the starting reactants in a 50-L reaction vessel. The equilibrium constant K is 0.58 at 1000 degrees Celsius. How many moles of each substance are in the equilibrium mixture. Also, calculate the Kp for this reaction. Pleas..
Blood alcohol content (BAC) is often reported in weight-volume percent (w/v%). For example, a BAC of 0.08% corresponds to 0.08 g CH3CH2OH per 100 mL of blood. In Ontario, and the rest of Canada, the maximum legal BAC for fully licensed drivers is ..
At 33°C, what is the osmotic pressure of a 0.6% by weight NaCl, in water. (The density is 1.0 g/mL at 33°C)
The delta G for the freezing of at -10 C is -210 J/mo and the heat of fusion of ice at this temperature is 5610 J/mol. Find the entropy change of the universe when 3 mol of water freezes at -10 C.
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