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Write simplified expressions in terms of [H+] and Kas and (with insignificant terms removed) for the alpha fractions of the following species of glutamic acid:
a) H2A at pH = 8.0
b) H3A+ at pH = 1.0
c) HA- at pH = 5.0
Glumatic AcidKa1= 6.92*10^-3 pKa1=2.160Ka2= 5.00*10^-5 pKa2=4.30Ka3= 1.10*10^-10 pKa3=9.96
water for the temperature of the trapped gas, will the calculated mass percent of metal in the sample be greater than, less than, or equal to real mass percent?
STP corresponded to conditions of "standard" temperature (T=0°C) and standard pressure (p= 1 atm). At STP, 1 L of Br2 reacts totally with 3 L of F2 to form 2 L of a product. What is the formula of the product?
A 5.00 mL sample of isopropyl alcohol has a mass of .930 g whe measured at 20 degrees celsius. What is the specific gravity of isopropyl alcohol?
If more NH4HS is added to a flask in which this equilibrium exists, how is the equilibrium affected? What is some additional NH3 is placed in the flask? What will happen to the pressure of NH3 if some H2S is removed from the flask?
hydrogen and nitrogen have different molecular weights, so mass fractions will be different than mole fractions.
Fears of radiation exposure from normal use of such detectors are largely unfounded. Identify reasons why ^241Am smoke detectors are perfectly safe.
the structure Y---X---Y (2 lone pairs around X) could be abbreviated as XY2Z2. Classify these structures according to their shape.
Show the Chemical behavior of an atom - The chemical behavior of an atom is determined by most directly by the
determine the number of carbon atoms in the compound. Natural abundances: 12C is 98.93% and 13C is 1.07%
solution of NaCl are mixed together, and a precipitate forms. Which are the spectator ions in this reaction?
Calculate the Mn of the polyisobutene if A 7.5g polymer sample found to discolor 3.4 mL of a 0.05 M solution of Br in CCl4 ?
If the same amount of heat is added to identical masses of each of these substances, which substance attains the highest temperature? (Assume that they all have the same initial temperature.)
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