How many grams of dry nh4cl need to be added
How many grams of dry NH4Cl need to be added to 2.40 L of a 0.400 M solution of ammonia, NH3, to prepare a buffer solution that has a pH of 8.78? Kb for ammonia is 1.8 x 10^-5.
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What verbal GRE score corresponds to a percentile rank of 15%? 55%? What is the percentile rank of a verbal GRE score of 628? 350?
Determine (a) the work developed by the turbine, in kJ per kg or air folwing, and (b) the temperature at the exit, in K. Ignore kinetic and potential energy effects.
Why do we have to redissolve the product we get from the reaction of cyclopentadiene with maleic anhydride? Is it to remove the impurities?
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The indicator phenolphthalein is used in this lab and changes from colorless to red at pH around 9 when a base is titrated with an acid.
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