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Why are masses in the chemistry laboratory usually determined by a difference method(using a beaker to contain the object to be weighed rather than just placing the object directly on the pan of the balance?
Why does bromine add faster to a disubstituted double bond than a monosubstituted double bond to produce dibromides
A sample of gaseous C2H2 (acetylene, or ethyne) was stored for one year, yet at the end of this period the sample remained unchanged and no graphite or hydrogen gas had been formed. Briefly explain why there is no inconsistency between the sign of..
The pH of the resulting solution is 2.65. Calculate the Ka for the acid.
If a 2.5 L reaction vessel initially contains 725 torr of cyclopropane at 485C , how long will it take for the partial pressure of cylclopropane to drop to below 105 torr?
We most often express heat as kilocalories and kilojoules rather then calories and joules. When 1 pound of fat is burned in the body,9.4 kilocalories of energy is produced. Express that as a) calories b)kilojoules
Gives what happens at neutral pH for aluminum hydroxide. A) Al dissolves B) Al(H2O)63+ dissolves C) Al(OH)3 precipitates D) Al(H2O)2(OH)4- dissolves
Consider the following balanced chemical reaction: 3FeCl2 + 2Li3PO4 ---> 6LiCl + Fe(PO4)2. How many liters of a 2.50 M FeCl2 solution are needed to completely react with 96.2 mL of a 1.78 M Li3PO4
What would the reaction: Bi + excess Cl2 yield? I know Bismuth can only attach to I think 3 chlorides because of the inert pair effect but I guess that's the part I'm unsure about! So would it be BiCl3
A 20.0 mL sample of gastric juice was taken from a patient suspected of having hypochloridia (low stomach acid). The sample was taken several hours after a meal so there was no ingested food or drink
Calculate the work for the expansion of CO2 from 1.o to 6.0 liters against a pressure of 1.0 atm at constant temperature
How does bright light differ from dim light of the same color in terms of photons
2.00 L of 0.100M pH 9.00 glycine buffer starting with the sodium chloride salt of zwitterionic glycine and 1.00M NaOH is prepared. If a reaction that generated 2.00 mmoles of base were carried out in 100 mL of the above buffer, what would be the f..
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