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Calculate the pH at the equivalence point in titrating 0.047 M solutions of each of the following with 0.011 M NaOH. (a) periodic acid (HIO4) pH = (b) benzoic acid (HC7H5O2), Ka = 6.3e-05 pH = (c) carbonic acid (H2CO3), Ka = 4.3e-07 pH =
This flask is then connected to a second flask, which is evacuated and has a volume of 630. mL. The gas is subsequently allowed to fill both flasks. What is the final pressure of the gas in the first flask? What is the final pressure of the gas in..
What are the steps to follow when calculating the percent ionization of acid in a buffer solution. example) percent ionization of .20 M benzoic acid in pure water and percent ionization of benzoic acid in a solution containing
During an extraction a student loses track of which layer is the organic layer. How could she determine which layer is the aqueous phase?
Calculate the entropy change for the vaporization of liquid methane and liquid hexane using the following data, Methane CH4 -- Boiling point= 112K Delta H(vap) = 8.20kJ/mol
Consider the reaction: H2(g) + CO2(g) ? H2O(g) + CO(g) is 4.2 at a 1650C. Initially 0.50 mol of H2 and .50 mol of CO2 are injected into a 5.0 L flask. Calculate the concentration of CO at equilibrium
What volume of O2 gas (in L), measured at 782 mmHg and 25C is required to completely react with 53.2 g Al
the cancer drug cisplatin contains 65% platinum. if you have 1.53 g of compound, how many grams of platinum does this sample contain
what is the presentage compostition of both of the components, which is the limiting reagent (if there is) and what is the theoretical yeild of each of them.
if 5.0 of nitrogen at 12 degree Celsius and 1.30 atm pressure reacts with the same volume of hydrogen at the same temperature and pressure, what volume of ammonia is obtained at that temperature and pressure?
After 273 m3 of ethylene oxide at 748 kPa and 525 K is cooled to 293 K, it is allowed to expand to 1.10 × 103 m3. What is the new pressure?
Given the following: 3648 L of wine, pH is 3.24, FSO2 is 24mg/L, TSO2 is 89 mg/L, alcohol is 12.6%. You want to maintain a MSO2 of at least 0.8 mg/L. How many mL of 95% pure SO2 liquid that has a density of 1.46 g/ml would you add
How much heat is required to raise the temperature of 5.5 x 10^2 g of aluminum by 10°C?
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