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Acid rain causes an increase in the pH (a measure of acidity) in bodies of water. It has been proposed that calcium carbonate, a source of the carbonate ( ion and a common inexpensive chemical, could be used to treat the effects of acid rain via the following reaction:
Write down the equilibrium expression that exists between carbonic acid (), the hydrogen ion and the carbonate anion. Carbonic acid is an unstable molecule and easily decomposes into carbon dioxide and water. How might this approach be used to reduce the effects of acid rain?
How many milliliters of 0.50 M HCl solution are needed to titrate 100 mL of 0.20 M NaF to the equivalence point
The temperature of 1.5 kg of ethanol is 37°C. What will the final temperature be if 80,000 J of energy as heat is added to the ethanol.
Explain Radio waves travel at the speed of light, 3.00x10^8 m/s. if you were to transmit a question to an astronaut on the moon, which is 239,000 miles from earth, Define the minimum time that you would have to wait to receive a reply
Important information about Organic Chemistry, The most reasonable formula for a compound demonstrating M+ =101 with a minor M+1 peak is
Problem- One mole of ideal gas is isothermally expanded from 5.0L to 10L at 300K. Calculate the entropy changes of the system, surroundings and universe if the process is carried out (A) , reversibly and (B)Irreversibly against an external pressur..
Under certain conditions, the substances nitrogen and hydrogen combine to form ammonia.
Compound B is quite soluble in toluene, but only slightly soluble in petroleum either. How could these two solvents be used in combination in order to recrystallize compound b
write a balanced half-reaction for the reduction of sulfate ion so42- to the sulfite ion so32- in acidic solution. how
Calculate the mass percent composition of carbon in each the following carbon compounds. Express your answer using 4 significant figures. C4H10 C6H10 C8H13O5N
a high-boiling bp 202-204 degrees c burns with a yellow sooty flame. sodium fusion indicated that halogens nitrogen
Problem- Molal freezing point depression constant is 9.0036 for solvent W. 0.460 grams of unknown compound Z to 8.050 grams of solvent W and measures a new freezing point 59.8 C for this mixture. What is the molecular weight of unknown compound Z
What is the difference between electron geometry and molecular geometry. Draw an example compound for which the electron and molecular geometries are different and name the geometric arrangements
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