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a) How many moles of sodium benzoate must be added to 2.5 L of .15 M benzoic acid to form a buffer whose pH is 4.46? Assume the addition of sodium benzoate does not change the total volume of the solution.b) If a strong base, say potassium hydroxide, was added to the buffer above what would happen to the pH and why?c) If 120.0 mL of 1.3 M KOH is added to the buffer what would be the new pH.
Climbers sometimes develop Acute Mountain Sickness (AMS) when ascending too rapidly without allowing their bodies time to acclimate to the lower oxygen concentrations in air at high elevations.
How would a Dietary resin that absorbs bile salt reduce plasma cholesterol level( please give me a detailed biochemistry explanation
A pipet delivers 10.5, 10.3, 10.9 and 10.7 ml. (a)find the mean volume and deviation from the mean for each and calculate the average deviation from the mean. (b) calculate the relative deviation (in %) for this set of data.
question a gas mixture is made by combining 8.9 g each of ar ne and an unknown diatomic gas. at stp the mixture
Sulfur dioxide can be produced in the laboratory by the reaction of hydrochloric acid and sodium sulfite. The skeleton equation for this reaction is: Na2SO3 + HCl --> NaCl + SO2 + H2O
naoh co2 - na2co3 h2o.if the average human body discharges 716 g of co2 per day how much naoh is needed each day for
A buffer solution was prepared by adding 4.95 g of sodium acetate, NaCH3CO2, to 2.50 x 10^2 mL of 0.150 M acetic acid, CH3CO2H. What is the pH of the buffer?
How long would it take for 1.50 of water at 100.0 to be converted completely into steam if heat were added at a constant rate of 16.0
When current is allowed to flow, which species is oxidized. What is the value of E0cell
Vapors are likely to be non-ideal near condensation temperatures. Would you expect such behavior to make your molecular mass to high or too low?
a 5.00-ml aliquot of a solution that contains 2.79 ppmfe2 is treated with an appropriate excess of thiocyanate and
If the heat released during condensation goes only to warming the iron block, what is the final temperature (in ) of the iron block. (Assume a constant enthalpy of vaporization for water of 44.0.)
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