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Compute the pH after 0.019 mole of HCl is added to 1.00 L of each of the four solutions. Presume that all solutions are at 25°C.
(a) 0.149 M acetic acid (HC2H3O2, Ka = 1.8???10?5)
(b) 0.149 M sodium acetate (NaC2H3O2)
(c) pure H2O
(d) 0.149 M HC2H3O2 and 0.149 M NaC2H3O2
The solubility of the K3[Fe(C2O4)3].3H2O product at 00C is 4.7 g per 100 g water. Given this, calculate the maximum percent yield of product for your own reactant quantities.
A student was synthesizing aspirin in the lab. Utilize the amount of limiting reactant, she compute the mass of aspirin that should form as 10.32 g. While she weighed her aspirin produce on the balance, its mass was 6.23 g. Compute the percent yie..
Suppose that a refrigerator cools to -4 degrees C, discharges heat at 20 degrees C and operates with 50% efficiency.
What is the overall order of the reaction? b.What is the order with respect to X?To Y? c.In a reaction
Calculate the heat of enthalpy for the reaction: PCl5(g) → PCl3(g) + Cl2(g)
Which reaction intermediate is formed when 4-methylcyclohexene reacts with Br2 dissolved in CCl4?
For a radioactive decay (decomposition of a radioactive substance) the half-life is 6.0 h. How much radioactive substance remains after 22 h, in % (radioactive decay is a first-order process)
The daily dose of ampicillin for the treatment of an ear infection is 115 mg/kg of body weight. What is the daily dose for a 34-lb child?
Calculate the wavelengths of the following objects: a) a muon(a subatomic particle with a mass of 1.884x10^-25 g) traveling at 3.00x10^2 m/s
An experimental light bulb with a volume of 3345 cubic cm is filled w/a mixture o f 2.9835 g of Argon and 1.441 g of neon in a laboratory at 20 degrees centigrade. Explain what is the internal pressure of the bulb. in kPA
An element occurs as a mixture of isotopes. The atomic mass of the element is based upon
A mixture of amino acids is subjected to paper electrophoresis at pH 6.0. The amino acids present in the mixture are Val, Glu, Phe, Ser, and Lys. Which amino acids will migrate toward the cathode? Toward the anode? Explain.
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