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A 5.00 sample of a dry mixture of potassium hydroxide, potassium carbonate as well as potassium chloride is reacted with 0.100L of 2.00M HCL solution.
a) A 249ml sample of dry carbon dioxide gas, measured at 22 C and 740 torr, is obtained from this reaction. Explain what is the percentage of potassium carbonate in this mixture?
b) The excess HCL is found by titration to be chemically equivalent to 86.6ml of 1.50M NaOH. Compute the percentages of potassium hydroxide and potassium chloride in the original mixture.
If you take a 10.0-mL portion of the stock solution and dilute it to a total volume of 0.430 L, what will be the concentration of the final solution
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Compute the energy change in kJ for the formation of 1.25 mole of KBr(s) from its gaseous ions. The lattice energy of KBr is -689 kJ/mol.
Phosphorous-32 has a half life of 14.26 days. If a patient is initially given a dose ?of 1.55 g of Phosphorous-32, how much remains in the patient's body after 1 week. Assume none of the dose is excreted from the body
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a sample of sodium dichromate na2cr2o7 is placed into a container by itself. the sample of material in the container is
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Consider the gases CH4, O2, and CO2, all at the same temperature. Arrange the gases in order of increasing average molecular speed. How does the average EK of the gases compare
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