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a) HCl has a pKa of about -7. What percentage of HCl molecules remain undissociated (that is, as H-Cl instead of H+ + Cl-) in solution? (note that this percentage is quite independent of the formal concentration).
b) How about for a solution of nitric acid (which has pKa of -1.4) Do the calculation for a formal conc. of 1M and for the formal concentration of 0.1M.
How to Name and Define Acids, How can you know that HNO3 is nitric acid and HNO2 is nitrous acid? How do you know the difference in endings?
if 625g of fe3o4 is produced in the reaction, how many molecules of hydrogen are produced at the same time?
A benzene-toulene solution with a mol fraction for benzene of 0.300 has a normal boiling point of 98.6 degrees Celsius. The vapor pressure of pure toulene at 98.6 degrees Celsius
How many kilojoules are released when 10.0g of steam condenses at 100 degrees C and cools to 0 degrees C?
Liquid sodium is being considered as an engine coolant. How many grams of liquid sodium (minimum) are needed to absorb 6.10 MJ of energy (in the form of heat)
A .117 gram sample of a metal reacts with hydrpchloric acid to produce 36.3mL od dry hydrogen gas. what is the equivalent weight of this metal.
Imagine that you have a 5.00L gas tank and a 4.50L gas tank. You need to fill one tank with oxygen and the other with acetylene to use in conjunction with your welding torch.
If you have 240.0 mL of water at 25.00 °C and add 100.0 mL of water at 95.00 °C, what is the final temperature of the mixture.
What is the pressure of the gas in this mercury manometer if h = 49 mm and atmospheric pressure
How many mL of a 0.10 m solution of NaOH are needed to completely react with 120 mL of a 0.15 m solution of H2CO3.
If you wanted to prepare a solution of CO in water at 25 degrees Celsius in which the CO concentration was 2.5 mM, what pressure of CO would you need to use?
Although the aluminum cylinder is a solid (and, therefore, is quite in-compressible), it actually contains quite a bit of empty space.
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