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Which lists the 4 ions present in a dilute solution of H2SO4 in order of increasing concentration? why?
a) OH-,SO4 -2,HSO4 -, H+
B) OH-, H+, SO4 -2, HSO4 -
C) H+, SO4 -2, OH-, HSO4 -
D) H+, HSO4-, SO4 -2, OH-
E) SO4 -2, OH-, H+, HSO4 -
What would be the structure and name of the open chain hydroxyl/carbonyl compund from which the above hemiacetal might form
Phosphorus pentachloride decomposes to phosphorus trichloride at high temperatures according to the reaction:
A mixture of gases with a pressure of 800.0 mm hg contains 60% nitrogne and 40% oxygen by volume. what is the partial pressure of oxygen in this mixture?
Vitamin b6 is needed in the metabolism of amino acids. When it binds to an enzyme it forms a complex with the e-amino group of lysine, which is a primary amine.
what is the purpose of the anhydrous cacl2? the important that none of the solid cacl2 be included in the final distillation of 1-bromobutane.
The decomposition of potassium chlorate yields oxygen gas. If the yield is 95%, how many grams of KClO3 are needed to produce 10.0L of O2 2KClO3(s) -> KCl(s) + 3O2(g)
A change in the primary sequence of a protein will never change how a protein is allosteric regulated. a.) True b.) False Which of the following is NOT a mechanism of enzyme regulation? a.) Feedback inhibition by a product. b.) Addition or removal..
A stock solution is prepared by adding 20 mL of 1.21 M AlCl3 to enough water to make 72 mL. What is the Al3+ concentration of 30 mL of the stock solution
Explain a resting nerve cell membrane, sodium-potassium pump, action potential and what wil happen if sodium channels were blocked
An aqueous solution is 48.3% by mass hydroiodic acid, HI. The density of this solution is 1.6 g/ml at 20 C. How many grams of pure HI are there in 190.0 ml of this solution at 20.0 C?
The radius of a uranium atom is 149 pm. How many uranium atoms would have to be laid side by side to span a distance of 4.55 mm?
How much energy is required to vaporize 48.7 g of dichloromethane (CH2Cl2) at its boiling point, if its ?Hvap is 31.6 kJ/mol?
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