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A chemist finds that 90.00 grams of an unknown compound contains 32.76 grams of manganese, 19.08 grams of sulfur, and 38.16 grams of oxygen. Find the empirical formula for this compound.
A sample of gas has a pressure of 328 torr while occupying a volume of 8.6 liters at 25 degrees C. If the volume was reduced to 2.4 liters at the same temperature, what would be the gas pressure in torr
concentrated aqueous hydrochloric acid, the major product obtained was 4-chloro-3,4-dimethyl-2-phenylhexane. Show the mechanism for this reaction.
the chromic acid test acetone, formaldehyde, propanal, 3-pentanone, acetophenone, and benzaldehyde
in order to ingratiate himself with voters the mayor of gotham city decides to lower the price of taxi rides. assume
a weather balloon is filled with 15.0 liters of helium at 27 degree celsius and 0.99 atm. what volume does the balloon
A student failed to carry out all of the procedural steps when doing this experiment. Would the following procedural variations result in an experimentally determined molarity of NaOH that is too high or low? Briefly Explain. The student did not c..
The heat of formation of KCl(s) is -436.7 kJ/mol and the heat of formation of KCl(aq, 1 m) is -419.5 kJ/mol. Determine the heat of solution of KCl.
a 5.00 gram sample of potassium chlorate/potassium chloride mixture was heated in a test tube. A total of 1.00 L of oxygen gas was collected over water at 25 degrees c and 741 torr. determine the percentage of potassium chlorate in the mixture.
what is the percent yield of a reaction in which 222 g phosphorus trichloride reacts with excess water to form 141 g
For the following reactants, predict the products formed (if any) and write the balanced molecular equation, complete ionic equation and net ionic equation. NaHSO3(aq)+HI(aq)
The diameter of the cylinder is 0.5m. and the piston height is 1m. a.what is the mass of the weights on the cylinder? b.You heat the gas to 1000k. how high will the cylinder rise? c.How much work will the engine provide?
how many electrons are gained or lost by each sulfur atom. how many electrons are gained or lost by each copper atom
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