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Define a non-chemical application of Le Chatelier's principle. Explain what is the system in equilibrium? Define what is the stress? How does the system respond?
calculate the empirical and molecular formula, respectively. (Note: When entering the answer do not worry about subcripting the numbers
An iron ore was found to contain 92.0% pyrite (fool's gold). Pyrite has the formula FeS2and is 46.5% iron. How many grams of iron are there in 65.8 grams of iron ore
Calculate the pH at the equivalence point in titrating 0.100 M solutions of each of the following with 7.0X10^-2 M NaOH.
consider 25.0 g of water at 21.7degc that are mixed with 25.0 g of water at 43.3degc in a foam cup calorimeter. the
the crucible is handled with oily fingers after its mass measurement but before the 3g sample of the hydrated salt is
Butryic Acid is responsible for the odor in rancid butter. A solution of .25M butryic acid has a pH of 2.71. What is the Ka for the acid
If the available valence electrons for a molecule or polyatomic ion does not complete all of the octets in an electron-dot formula, what should you do
Calculate the concentration of H3PO4 if 25.00 mL of the acid is titrated with 38.77 mL of 1.723 M KOH to produce K3PO4 and water.
CH4(g) + 3 Cl2(g) CHCl3(g) + 3 HCl(g) How many grams of CH4 is needed to produce 43.0 g CHCl3?
Ammonia gas is produced by reacting hydrogen gas with nitrogen gas. To produce 450 g of ammonia gas using air as your source of nitrogen gas, what volume of air is required if the air is introduced at 25°C and 740 mmHg
a 58.7g piece of iron at 67 degrees celcius is placed in a vessel containing 60.0g of water at 22 degrees celsius. the
Suppose we had ran the oxidation reaction with racemic borneol. Is there an analytical technique we could use to verify that the camphor also is racemic. What type of instrumentation would you use. What kind of results would you expect for a racem..
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