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Find the specific heat of an unknown metal if a 35.5 gram sample at 99.6 degrees Celsius produced a resulting temperature of 26.1 degrees Celsius when placed in a calorimeter containing 100.5 grams of water at 20.2 degrees Celsius.
Discuss in detail the healthcare applications of chemical reactions. Which chemical reactions would you consider to be of importance to healthcare professionals? Why? In which situations are these chemical reactions useful to healthcare professiona..
A gas occupies 22.4 L at STP and 14.5L at 100 C and 2.00 atm pressure. how many moles of gas did the system gain or lose?
What is being oxidized and what is being reduced: feso4 + k2cr2o7 + h2so4 = cr2(so4)3 + fe2(so4)3 +h2o + k2so4
They provide an alternative path for protons to re-enter the mitochondrial matrix, so ATP synthesis decreases. Electron flow and proton pumping are not inhibited.
(Nitration of Methyl Benzoate Worksheet Lab) The nitric acid used in the experiment is greater than 90% pure nitric acid. Why does the yield decrease as the percentage of water in the nitric acid increases. Why is the nitration of aromatic rings a..
tablets of ki were distributed to people living around chernobyl one week after the nuclear reactor explosion occurred
a) What is the structure of biacetyl? b) Indicate the hybridization of each carbon atom. c) How many pi bonds are present? d) Do the four carbon atoms lie in a plane or do they lie in a straight line?
Your observations should reveal a difference in at least one property between sodium benzoate and benzoic acid. What property was that, and what observation will reveal the difference?
Calculate the potential of the following two half- cells that are connected by a salt bridge: a galvanic cell with two platinum electrodes, the one on the left immersed in a solution that is 0.0301 M in Fe3+ and 0.0760M in Fe2+
find the temperature and the pressure of a gas inside the cylinder.1. a gas at 71degc occupies a volume of 0.67 l. at
An environmental engineer analyzes a sample of air contaminated with sulfur dioxide. To a 500. mL sample of air at 700. torr and 38°C, she adds 20.00 mL of 0.01017 M aqueous iodine, which reacts as follows:
What is the mass, in milligrams, of mercury in 1.00 kg lake trout that just meets the Northern American standard of 0.50 ppm Hg?
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