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You are given an unknown colorless, solution that may contain only on salt from the following set- NaA, NaB, NaC. In solution each salt dissociates completely into Na+ ion and the anion A-,B-, or C-, whose properties are A is green, B is yellow and C is red. The Na+ ion is effectively inert. Given the availability of solution of A, B, and C, develops a simple procedure for identifying the salt that is present in your unknown.
If 12.0 g of O2 is required to inflate a balloon to a certain size at 27 OC what mass of O2 is required to inflate it to the same size (and pressure) at 5.0 oC.
a 50.0 gram piece of iron at 152 degrees celsius is dropped into a 20.0 grams of water at 89 degrees celsius in an open
A solution is prepared by dissolving 0.400 g of solute in 1000.g of water how many parts per million of solute are in this solution
question if 5.20 ml of 0.1000 m naoh solution is needed to just neutralize excess acid after 20.00 ml of 0.1000 m hcl
ammonium carbonate decomposes upon heating according to the following balanced equation nh42co3-gt2nh3co2h2o. calculate
Write a chemical equation for Ca(OH)_2 (aq) showing how it is an acid or a base according to the Arrhenius definition.
consider an ideal gas being heated reversibly from t1 to t2 at a constant volume and then allowed to expand
Determine the change in internal energy of the gas express your Answer in units of kJ and operates for nine minutes to heat the gas in a cylinder
How many grams of dry NH_4Cl need to be added to 2.10 L of a 0.100 it M solution of ammonia, NH_3, to prepare a buffer solution that has a pH of 8.84? K_b for ammonia is 1.8 * 10^{-5}
Isoprene is a compoud composed only of carbon and hydrogen. It is 11.84%H. what is the emperical formula?
Consider the following reaction at constant P. Use the information here to determine the value of Delta-Ssurr at 398 K. Predict whether or not this reaction will be spontaneous at this temperature
The bismuth-cadmium phase diagram is of interest in metallurgy, and its general form can be estimated from expressions for the depression of freezing point
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