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You have a solution of a buffer with 10 mMoles of the buffer. Initially the solution has a pH of 6.8. You add 100 mM kOH and the pH rises to 7.1. The pKa of the buffer is 6.3.
How many mls of KOH did you add?
Unknown Q is determined to have a molecular formula of C6H12O. Q is not optically active, and passing it through a chiral column does not separate it into enantiomers.
water has a molar heat of vaporization =40.79 kJ/mol, determine how many grams of water could be vaporized by 0.806 kilo Joules heat? Express your answer in units of g
The buret is filled with the NaOH titrant and the initial volume reading is immediately recorded without waiting the recommended 10-15 seconds.
Find the temperature and the pressure of a gas inside the cylinder - what was the initial pressure of the gas in the cylinder?
A gas mixture has three components: N2, F2, and He. their partial pressure are 0.60atm, 0.16atm, and 0.18 atm , respectively. What is the pressure of the gas mixture
A sample of sodium hydrogen carbonate solid weighing 0.1075 g requires 49.35 mL of a hydrochloric acid solution to react completely.
Solubility of a gas in a liquid increases as the temperature increases. D. The solubility of a gas in a liquid increases as the pressure increases.
How many minutes will it take to plate out 2.19 g of chromium metal from a solution of Cr3+ using a current of 35.2 amps in an electrolyte cell
Determine water solubility under normal atmospheric conditions (assuming that Carbon dioxide obeys Henry's law?)
Using the Nernst Equation, calculate the voltage for a concentration cell with: Cu (s)| 0.01 M Cu2+|| 1.0 M Cu2+| Cu (s)
Determine the number of moles of sodium hydroxide used to dissolve the aspirin tablet. (This will be the same in all three cases.From your titration data, determine the number of moles of hydrochloric acid added, and hence determine the number ..
Mg3N2(s) + H2O(l) → Mg(OH)2(s) + NH3(g) If this process is 82% efficient, what mass of ammonia can be prepared from 22.0 kg magnesium nitride.
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