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Heat transfers to a 1.5 kg block of ice at -10 Celsius and melts it to a liquid at +10 Celsius in a kitchen. How much work does the water give out?
Calculate the percent yield of 1.0 grams of salicylic acid obtained from the hydrolysis of 1.3 mL of methyl salicylate.
how many grams of zinc must react with sulfuric acid in order to obtain 500mL of hydrogen at 20 deg c and 770 mm hg?
Consider the following system which has been shown to be spontaneous at 298K and select the true statement below. the ?S for the system is predicted to be negative, so therefore the ?S for the surroundings must be positive to a greater extent so tha..
a 10.0g sample of a mixture of methane and ethene c2h4 reacts with oxygen at 25 celsius degree and 1 atm to produce
Which of the following elements will have the same number of core electrons as P?
Calculate the pH of a solution formed by mixing 172.0 mL of 0.100 M NaF and 201.0 mL of 0.025 M HCl.
Show your calculations for the pH when 0.00 mL, 4.00 mL, 6.00 mL, 12.00 mL (equivalence point), and 16.00 mL of 0.10 M HCl have been aded to an initial
Calculate the pH of a buffer made with 0.50 M phosphoric acid and 0.75 M sodium dihydrogen phosphate. Ka = 7.5 x 10^-3
calculate the volume of a chromium atom in microliters if the volume of a single chromium atomcr 8.10e-24 cm3.
A sample consisting of 1-bromopropane and 1-chloropropane isinjected into a gas chromatograph quipped with a nonpolar column.which compound has the shorter retention time? Explaine the answer.
Glycerol is a water-soluble liquid with a density of 1.2656 g/mL at 15°C. Calculate the molarity of a solution of glycerol made by dissolving 60.000 mL glycerol at 15°C in enough water to make 300.00 mL of solution.
what can we conclude about the energy required to excite an electron from n=5 to n=6 versus the energy required to excite an electron from n=4 to 5.
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