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Sorbic acid, HC6H7O2, or HSORB, MM = 112.12 g/mol, is a weak monoprotic acid with Ka = 1.700 x 10-5. Its salt (potassium sorbate, or KSORB) is added to cheese to inhibit the formation of mold. What is the pH of a solution containing 4.555 g of potassium sorbate, KC6H7O2 , KSORB, MM = 150.21 g/mol, in 0.750L of solution?
The R1 value of uo2 in the solvent system used in this module is 0.68. explain which of the other cation tests used in this expirment it would interfere with, what alternate tesr reaget you would therefore use to identify that other cation and whi..
A nurse is asked to deliver morphine bt IV to a patient at a rate of 20 mg every four hours. The concentration in the IV bag is given as 0.13%. How many milliliters
Caculate the kinetic energy of a mole of oxygen atoms, all moving at a speed of 400 m/s (10000 mph).
Iodine-123 is used to establish thyroid gland function. If after 79.8 hours, 1.56% of the original dose remains in the patitent, what is the half-life
What would be the most likely formula for a compound composed of Ca and N? The boiling point of oxygen is 55°K. What is the equivalent temperature on the Celsius scale?
A fuel gas containing 90% methane (CH4), 5% acetylene(C2H2) and 5% butane gas(C4H10) by volume is fed to a furnace in which it is completely burned with 10% excess air. The fuel gas flow rate is 1000 m^3/h at 15 degrees Celcius and 250 kPa.
lemon juice has a ph of about 2.5. Assuming that the acidity of lemon juice is due solely to citric acid, that citric acid is a monoprotic acid,
Write a mechanism for the reaction. Include arrows to show electron flow. Number and write out each step individually.
how many moles of co(nh2)2 are present in 150 g of water, if the freezing point of the solution is -4.02 degrees c?
Adenine is a purine base that is a component of several important molecules, including adenosine triphosphate (ATP), flavin adenine dinucleotide (FAD), DNA, and RNA. Draw adenine.
State which substance in each of the following pairs you would expect to have the higher boiling point and explain why.
1) a sample measures 711mmHg pressure at 15 degree C. Later the temperature goes to 45 degree C. What is the new pressure 2) a gas is at 45.2 atm and 51 degree C. what is the pressure at 15 degree C
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