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1. Write an equation describing the hydrolysis of one ester group in tannins by CaCO3. 2. How would longer roasting time of green coffee beans effect its caffeine content
Show how each of the following compounds could be prepared from 3-pentanone. In most cases more than one synthetic transformation will be necessary.
Write an equation for determining the average atomic mass number of an element that has two isotopes. Isotope 1 has a relative abundance of 33%, and isotope 2 has a relative abundance of 66%.
in the course of research a chemist isolates a new compound with an empirical formula c3h3o2. 2.51 g of the compound
The specific heat of solid gold is 0.13 J/g C. How much heat is needed to raise the temperature of 25.0 g of gold from 23degrees C to it's melting point at 1063 degrees C
Calculate the heat released (in kilojoules) per gram of the compound reacted with oxygen. The standard enthalpy of formation of benzene is 49.04 kJ/mol.
Write a net ionic equation for the reaction that occurs when sodium sulfite (aq) and excess nitric acid (aq) are combined. Note: Sulfites follow the same solubility trends as sulfates.
In your report be sure to compare and contrast the system you used in your investigation with the carbonic acid/carbonate buffer system in the blood.
write contributing important resonance structures for each of the followingcompounds and predict their relative co
What are the concentrations of the following ions at the equivalence point. Na+, H3O+, OH- C6H5CO2- M Na+ M H3O+ M OH- M C6H5CO2- What is the pH of the solution
A person preparing a fish tank uses boiled (and then cooled) water to fill it. When the fish is put into the tank, it dies. Explain.
0.506-kg chunk of ice at 0.0 degrees Celsius is added to an insulated container holding 315ml of water at 20.2 degrees Celsius. Will any ice remain after thermal equilibrium is established
A balloon is inflated with 0.2494 g of helium to a pressure of 1.26 atm. If the desired volume of the balloon is 1.250 L what must the temperature be in degree celcious
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