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Didn't really go over this too much in class, and what we did I couldn't understand. Can anyone help me with this?
Determine the fraction of piperazine in each of its three forms (H2A, HA^-, A^2-) at PH 6.56?
A) fraction H2A
b) Fraction HA^-
c) Fraction a^2-
Ascorbic Acid (Vitamin C) is diprotic acid (Ka1= 8.00x10^-5 and Ka2= 1.60x10^-12). What is the pH of a 0.250M solution of ascorbic acid?
Suppose HI at 5.00 10^-1 M, H2 at 1.00 x 10^-2 M, and I2 at 5.00 x 10^-3 M are mixed in a 5.0 L container. Calculate all concentrations at equilibruim.
61.0 mL of a solution(1.60 M) is diluted to a volume of 208 mL. A portion of that solution(104-mL) is diluted using 121 mL of H 2 O. determine the final concentration?
the slopes corresponding to standard Beer's Law plots were as follows: ?IA = 0.072 ?IB = 0.306 ?IIA = 0.760 ?IIB = 0.036 Using this data, calculate the ratio between the relative concentrations of MR- and HMR in this solution.
What volume of H2 could be produced at a temperature of 19 oC and a pressure of 764 torr by the reaction of 2.98 g of aluminum with hydrochloric acid.
rom your initial observations, you suspect that the two beakers contain the same compound. Describe, in general terms, some experiments in a laboratory that you could do to help prove or disprove that the beakers contain the same compound.
How many molecules (not moles) of NH3 are produced from 1.52×10?4g of H2?
Determine the mass of Al is needed to combine with 3.077 kilo grams of Ammonium per chlorate NH 4 ClO 4 for this reaction? express your answer in units of g
If C 6 H 12 O 6 yields C 2 H 5 OH+CO 2 then balance this equation and determine what the percent yield for the reaction is if 575.0 grams of C 6 H 12 O 6 glucose yields 126.4mL of C 2 H 5 OH ethanol?
Unit Conversions A solution (? = 1.03 g/mL) that is a mixture of water and 5wt% sufuric acid (H2SO4) ?ows through a 45-m long pipe with a 6.0 cm diameter at a rate of 87 L/min. a. What is the molarity (mol/L) of sulfuric acid in the solution?
titration of the resulting solution required 36.43 mL of KMnO4 solution. Calculate the percentage of Fe and Cr in the alloy.
Gas was obtained by boiling liquid nitrogen stored in a 175.0 L tank. What volume ofN2 is released at 0.940 atm of pressure and 25 C from a tank full of liquid N2(d=0.808g/mol)
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