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What is the pH of a hypobromous acid/sodium hypobromite buffer in which the concentration of the weak acid component is 0.068 M and the concentration of the conjugate base is 0.074 M? Hypobromous acid [HOBr] = Ka=2.50e-9.
Make sure to include all the amounts of materials and the equipment you would use. You should plan to use this procedure as your guide for perparing your assigned pigment during the test.
you will be using 1.4 grams of salicylic acid to make aspirin. salicylic acid is the limiting reagent and one mole of
One of the steps in the commercial process for converting ammonia to nitric acid is the conversion of NH_3 to NO: 4NH_3 + 5O_2 yields 4NO +6H_2O In a certain experiment, 2.05g of NH_3 reacts with 3.76g of O_2 How many grams of NO and of H_2O will ..
A chemist measures the amount of bromine liquid produced during an experiment. She finds that 766.g of bromine liquid is produced. Calculate the number of moles of bromine liquid produced.
What mass of zinc oxide can be produced from the reaction of 415 g zinc sulfide with 265 g of oxygen gas? The other product is sulfur dioxide.
A buffer contains 0.010 mol of lactic acid (pKa=3.86) and 0.050 mol of sodium lactate per liter. Calculate the change in pH when 5mL of 0.5M NaOH is added to 1L of the buffer.
RNA is readily hydrolyzed by alkali, whereas DNA is not. Why. Think of pH required for nucleophile generation
determine the structures of Compounds A, B, C, D, and E. Show calculations. Support all of your structure determinations. Student performed a sodium borohydride reduction experiment.
If an unknown is water soluble, why is it unnecessary and potentially misleading to perform (and interpret) the result of the solubility of this unknown in 5% HCl.
As a scuba diver descends under water, the pressure increases. At a total air pressure of 2.90 and a temperature of 25.0 , what is the solubility of in a diver's blood
Ice at 0.0° C is mixed with 9.00 102 mL of water at 23.0° C. How much ice must melt to lower the water temperature to 0.0° C
The most important commercial process for generating hydrogen gas is the water-gas shift reaction: CH4(g) + H2O(g) ? CO(g) + 3H2(g) a)Use tabulated thermodynamic data to find ?G° for this reaction at the standard temperature of 25°C.
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