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What is a variable which has no effect on the rate of a chemical reaction under any circumstance is?
a mixture of nitrogen and hydrogen reacts as fully as possible to form a 56 l mixture of ammonia and hydrogen at stp. when this mixture is compressed to 10.0 atm and chilled to 200.0 K, all of the ammonia is liquefied leaving 3.2 L of hydrogen sti..
A 91 gram solution of silver nitrate contains 8 grams of AgNO3. What is the percent by mass of silver nitrate in this solution.
Presence of Aldehyde Group, An excellent way to identify the presence of an aldehyde group is by 1H NMR. The chemical shift of the aldehydic proton occurs in the 9-10-ppm region
prepare 3.9L of a HCN/NaCN buffer that has a pH of 9.70 and an osmotic pressure of 1.27atm at 298K. What masses of HCN and NaCN should you use to prepare the buffer
Titanium crystallizes on a body-centered cubic lattice with a unit cell edge length of 3.28 Å. The density of titanium is 4.54 g /?cm3. The atomic mass of titanium is 47.88.
A concentration of 0.5 ppm by volume SO2 in air is harmful to plant life. What is the percent by volume of this concentration
Draw the major E2 reaction product formed when (1R,2S,4S)-2-chloro-4-methyl-1- (propan-2-yl)cyclohexane (shown below) reacts with hydroxide ion in DMSO.
Determine the pH of the acid solution before the titration begins and the pH at the equivalence point when 50.0 mL of the NaOH has been added. The Ka of HF is 7.2*10^-4
HCl + NaOH = NaCl + H2O If 200 mL of a .20 M HCl solution is consumed in the above reaction, how many grams of each product would be produced.
Lead and iron are common alloying elements found in brass. Would the presence of these elements complicate the analysis of brass
A 64 g piece of ice at 0 degrees celsius is added to a sample of water at 9 degrees celsius. all of the ice melts and the temperature of the water decreases to 0 degrees celsius. How many grams of water were in the sample?
.914g sample of stannous flouride gives a 1,078g precipitate of stannous phosphate. calculate the theoretcial yeild?
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