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1.0L of a buffer solution is prepared containing 0.82M Ammonium chloride and 0.41M in ammonia. The Kb of ammonia is 1.8x10^-5. (a)Determine the pH of the Solution. (b) Determine the capacity of this buffer solution for resisting pH change when acid is added. Assume the volume does not change
if 69.5 kj of heat is applied to a 1012-g block metal, the temperature of the metal increased by 11.4 degrees celsius. what is the specific heat gravity?
Calculate the energy of an electron in the hydrogen atom when n = 2 and calculate the energy of an electron in the hydrogen atom when n = 6.
A 20-g mass of argon occupies 15.0 l at a pressure of 25 kpa . find the volume of the argon when the pressure is increased to 530 kpa.
Patients with a high body temperature are often given "alcohol baths." The heat of vaporization of isopropyl alcohol (rubbing alcohol) is 159 cal/g. How much heat is removed from the skin by the evaporation of 190g about 1/2 cup) of isopropyl alco..
2-bromooctane in 10 mL ether solution gave an observed rotation of -1.8° in a 10 cm cell at 20°C. Calculate the specific rotation of this solution.
column of air with a pressure of 1.57 *10^5 Pa and an area of 1.15 m^2 and given that the acceleration due to gravity is 9.8 m/s^2, what is the mass of this column?
The metal barium crystallizes in a body-centered cubic lattice. If the density of barium is 3.51g/cm3, what is the unit cell volume?
Rewrite the atomic cores in the space below. Place an electron pair between each flourine and sulur core. Write the lewis structure for SF2 in the box, distributing the remaining valence electrons so that all three atoms are in accordance with the ..
A 25:75 mixture of acetone:toluene is heated to 70 C at a pressure of 760 mmHg. What is the total vapor pressure of the system? Is the system a liquid below boiling, at boiling, or a gas?
If one reacts a double bond with bromine in chloroform a dibromide is obtained. However, if one reacts bromine in water with a double bond, a vicinal halohydrin is formed. Provide an explanation for this result and show a mechanism for the reactio..
Know the reaction catalyzed by catalase. 1.What is the substrate of this enzyme? 2.What are the products? 3.Is catalase found in the cells of the human body?
how many mL of chlorine gas are required to produce 0.50L of hydrogen chloride gas(HCl) at constant temperature and pressure?
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