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1) 10 mL of 0.05 M amino acid (Ka1=4.69x10^-3 and Ka2=1.79x10^-10) is titrated with 0.05 M HCl. Sketch a titration curve. (there's no need to actually sketch the curve; I just need to calculate the pH values needed to sketch a curve)
2) What if the HCl was 0.1 M?
3) What if the amino acid was 0.1 M?
This race is a challenge to the human organism! By what percentage does the oxygen number density decrease between the start and the finish of the race?
Epsom salt is a hydrate with a formula MgsO4.xH2O, where x indicates the number of moles of H2O per mole of MgSO4. After a 1.687 g sample of the hydrate is heated, 0.824 of MgSO4 remains. How many molecule of water are present per formula unit of ..
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How many moles of NH4Cl must be added to 1.0 L of 1.0 M solution of NH3 to prepare a buffer solution with a pH of 9.00 ? of 9.50 ? Kb = 1.8 x 10 -5
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