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Question- a 100.0 ml aliquot of .100 M diprotic acid H2A (pk1=4.00, pk2=8.00) was titrated with 1.00 M NaOH. Find the pH at the following volumes of base added: 11, 15, 19, 20, and 22ml
Explain each and every step in detail. I need proficient help in the above problems.
Hydrocarbon chemistry problems, For the compound, 1,2-dibromoethane, the most stable conformation would be
Sucrose , which is commonly known as table sugar, reacts in dilute acid solutions to form two simpler sugars, glucose and fructose, both of which have the formula At 23 and in 0.5 , the following data were obtained for the disappearance of sucrose
what is the theoretical yield for the equation
Kn1 knowledge and understanding of atomic and molecular structure, chemical bonding, chemical formulas, chemical equations, mole calculations and the mole concept and the relation between elements of the Periodic Table.
The solubility product of PbBr2 is 8.9x10^-6. Determine the molar solubility a) in pure water, b) in 0.20M KBr solution, c) in 0.20M Pb(NO3)2 solution.
Explain how to sketch a boiling point-composition figure for mixtures of toluene and water. With water mole percent of 20.2% as well as toluene mole percent 79.8% also a boiling point of 85* C.
Benzene has an isothermal compressibility of 5.62 x 10 -6 at 298K and 1 atm. Compute the difference in G's if three tons (metric) are compressed (specific grav .882) from 1 atm to 5000 atm (if benzene is compressible)
What maximum mass of sulfur in kg could be produced by the reaction of 1.3 x 10 4(the 4th) m3 of SO2(g) with 2.5 x 10 4(the 4th) m3 of H2S(g), both at STP
Which pair of solutions should conduct electrical current equally well because they contain equal numbers of ions? 0.10 M NH3 and 0.10 M NH4Cl 0.10 M HBr and 0.10 M HF 0.10 M NaCl and 0.10 M Na2SO4 0.10 M NaNO3 and 0.10 M HNO3 0.10 M HNO3 and 0.10..
Calculate the concentration of a noncompetitive inhibitor (Ki=2.9 x 10^(-4) M) needed to yield 90% inhibition of an enzyme-catalyzed reaction.
According to the equation, how many grams of sodium acetate will you need to add to 125 mL of 0.100 M acetic acid to make a pH=4.74 buffer. What is the actual pH of the resulting buffer when you add that many grams of sodium acetate to 125 mL of 0.1..
What is the percent yield if 185 grams of SiO2 are made from 328 g of Cr2O3 by the following equation. 3Si (s) + 2Cr2O3 (s) ---> 3SiO2 (s) + 4Cr (l)
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