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The Ka of a monoprotic weak acid is 5.48 × 10-3. What is the percent ionization of a 0.142 M solution of this acid?
consider a direct methanol fuel cell with a liquid methanol and water solution in the anode and an air cathode.
Compare the natural chemistry that takes place in the environment with the chemistry that takes place due to manmade factors like pollution. Discuss the effect of pollution at the local, regional, national, and global level.
A reaction takes place inside a constant volume or BOMB calorimeter. Pressure is not constant during the reaction. The heat absorbed by the calorimeter is measured to be +15J
Calculate the amount of isopentyl acetate that should be present in the reaction mixture at equilibrium based on 300 mmol of acetic acid and 150 mmol of isopentyl alcohol as starting quantities.
Polychlorinated biphenyls (PCB) are environmental and health hazard. They break down very slowly in the environment. The decomposition of PCBs can be represented by the equation:
cortisone is a steroid used to treat joint inflammation. each cortisone molecule contains 21 atoms of carbon plus
if 26.8 grams of lithium hydroxide is mixed with 250ml of water to form a solution which is then reacted with boron
Question- Which substance is serving as the reducing agent in the following reaction? balance the reaction in acid
What is the element symbol?
A solution of household bleach contains 5.25% sodium hypochlorite, NaOCl, by mass. Assuming that the density of bleach is the same as water, calculate the volume of household bleach that should be diluted with water to make 500.0 mL of a pH = 9.80..
The diagram shows four states of a system, each with different internal energy, E. Which of the states of the system has the greatest internal energy?
Calculate the gas NH3 in ppm over NH4OH solution.The density of the solution is 0.9g/ml and the Commercial concentrated aqueous ammonia is 29%.
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