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1) Explain what is the pH of a buffer prepared by adding 50.0 ml of 0.030 M phenol, HC6H5O, to 50.0 ml of 0.030 M potassium phenolate KC6H5O. pKa = 9.98.
2) Compute the pH of the above buffer after 5.0 ml of 0.010 M HCl has been added.
The value of delta H for 2CO(g) + O2 (g) = 2CO2(g) is -482 kJ. Calculate the heat released to the surroundings when 38.5 g of O2 (g) reacts with excess CO
A particular element M has a heat capacity of 0.36 JgK and it forms an oxide that contains 2.9 grams of M per gram of oxygen What is the molar mass of the metal
Explain the type of nonrenewable energy resource used and their short-term and long-term effects on the environment
How many joules of energy are necessary to heat the steam from 100.0C to 114.0C if the specific heat of steam is 2.02 J/ g C
Put in order the following molecules in terms of the Permeability of the molecule across a membrane by simple diffusion at pH 7.
Calculate approximately the value for the heat of sublimation of methane and calculate the pH for this solution
What is the atomic mass of Tc as it would appear in the periodic table. Do not enter units with your answer and use the correct number of significant figures.
The principal quantum number, n, describes the energy level of a particular orbital as a function of the distance from the center of the nucleus. Additional quantum numbers exist to quantify the other characteristics of the electron.
Why do lithium and sodium exhibit similar chemical behavior? What is the stadard potential of 1/2 O2 My table says 1.229
citric acid a flavoring agent in many carbonated beverages has a molecular mass of 192 and a percent of composition by
How many hours are required in order to reduce 325 mL of a 0.481 M solution of CuCl2 to 0.226 M in Cu2+ using a 0.978 A current
Determine the mass of phosphorus (P) is required to make 39 grams of this product?
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