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A container filled with 3.47 kg of water underwent a temperature change from 23.20 oC to 28.42 oC. How much heat, measured in kilojoules, did the water absorb? (The specific heat of water is 4.18 J g-1 oC-1).
A scuba diver 40 ft below the ocean surface inhales 50.0 mL of compressed air mixture in a scuba tank at a pressure of 3.00 atm and a temperature of 8 degrees C
Question in cosmetic chemistry. If a person could precisely place hair dye on the hair shaft, how much less, if any % of product would they use to be effective for the normal dyeing of a head of hair
What is the value of Kc for the reaction at the temperature of the reaction Mixture. N2(g)+O2(g) 2 NO(g)
Determine the activation energy in kj/mol for the following reaction: 2 N2O5(g) = 4 NO2 + O2 from the following data.
What is the pH at the half-stoichiometric point (that is, what is the pH when you have added 50% of the total volume of base required to react with all of the acid originally present?)
which produce no significant response to interfering ions. It is then used to measure the pH of 0.0100 M NaOH in 0.50 M NaCl at 25 degrees C. What is the observed pH under these conditions if the true pH is 1.13?
a sample is marked as containing 42.7 calcium carbonate by mass.what mass of calcium carbonate is contained in 33.9
How many grams of solid magnesium nitrate should be added to 5.0 g of solid sodium nitrate in a 500-mL volumetric flask in order to produce an aqueous 0.25 M solution of NO3
Assuming that one serving size of juice is 240ml. calculate the mg of witamin c in one seving size of the juice. vitamin c, raw juice 0.643 mg/ml
Calculate the boiling point of a 2.97m aqueous solution of ethylene glycol, a nonvolatile nonelectrolyte.
CO +H2O ->
benzene is often produced as a by-product during the synthesis of phenylmagnesium bromide. how can its formation be
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