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How much ice(in grams) would have to melt to lower the temperature 352ml of water from 25degrees celcus to 5 degrees celcus? ( assume the density of water is 1.0g/ml)
A drop of oil volume 0.05 cm3 is released from a medicine dropper on to a calm surface of a pond where it spreads out to cover an area of 40 cm2. Calculate the diameter of an oil molecule.
Compute the reactor volume and space time to get 90% conversion in a PFR and in a CSTR
Compute A current is drawn from the cell until 1.20 grams of Ag have been deposited at the Ag electrode. Determine the value of E for the cell at that stage of operation.
If the initial concentration of AB is 0.260 M, and the reaction mixture initially contains no products, what are the concentrations of A and B after 80 s?
You have a sample that consists of 8.2 (+ or -)o.1mL of aqueous 239Pu solution. You measure two 10mL aliquots by liquid scintillation counting and get 3211.4 cpm and 3315.2 cpm, respectively.
the heat of combustion of butane is -2878kj/mol assume a typical cigarette litter hold about 1.75 grams of butane how much energy would be released
The well-preserved remains of a now extinct woolly mammoth is entombed in the permafrost lands of Siberia. Scientists have conducted carbon dating experiments on plant debris found in the stomachs of this mammoth.
Enough of a monoprotic acid is dissolved in water to produce a 0.0142 M solution. The pH of the resulting solution is 2.51. Calculate the pKa for the acid
What volume of 0.160 M of Li2S solution is required to completely react with 125 mL of 0.160 M of Co(NO3)2
If 10.0mL of acetic acid, CH3COOH, is diluted with water to a total volume of 200.0mL, what is the percent by volume of acetic acid in the solution.
A gas occupying a volume of 246 mL at a pressure of 0.970 atm is allowed to expand at constant temperature until its pressure reaches 0.541 atm.
Determine how much energy will be required to heat 69.7 gal of H 2 O from 22 degree Celsius to 110 degree Celsius if it is given that 1.00 gal weighs 3.77 kg and water has a specific heat capacity =4.184 J/g C
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