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Problem- A student observed that enzyme solutions (without fluoride ions added to it) turn red fairly rapidly at room temperature. What does this phenomenon suggest that is also present in the enzyme extract beside the enzyme?
Express your answer using significant figures.
N2(g) + 3H2 (g) ---- 2NH3(g) a one liter vessel contain 1.60 mole NH3.800 mole N2 and 1.20 mole of H2. What is the equilibrium constant.
collected over water at 22 degrees C and the total pressure of the wet gas were 710 mm Hg, what would be the partial pressure of the oxygen?
The temperature in the laboratory was 23°C and the barometric pressure was 621. mm Hg. You will need to look up vapor pressure of water at that temperature. Find the equivalent mass of this metal.
A chemist ran the reaction and obtained 5.05g of ethyl butyrate. What was the percent yield
Outline a complete mechanistic sequencefor the reaction of 2-bromobutane with potasium2-methyl-2-propoxide in 2-methyl-2-propanol solvent to form the three alkenes generated in the reaction
A sample consisting of various gases contains 3.1×10-6 mole fraction of radon. This gas at a total pressure of 34 is shaken with water at 30 . Calculate the molar concentration of radon in the water.
A solution contains 0.25 M Ni(NO3) and 0.25 M Cu(NO3)2. can metal ions be separated by slowly adding Na2CO3? Assume that for successful separation 99% of the metal ion must be precipitated before the other metal ion begin to precipitate,
In a manometer, attached to a sample of gas the difference in the height of the mercury levels is 30 mm. The barometric pressure is 749.0 mm Hg. Explain what is the pressure of the gas sample in Pascal's
the air in a bicycle tire is bubbled through water andcollected at 25 degrees celsius. if the total volume of gas
A solution of iodine was standardized with ascorbic acid. A 0.1150 g sample of ascorbic acid required 28.37 mL of I2 to reach a starch end point. Calculate the molarity of the iodine solution.
a proton in a linear accelerator has a broglie wavelength of 128 pm. what is the speed of the proton?
given this equation 2C4H10+13O2 yield 8CO2+10H2O how many moles of carbon dioxide is porduced from 3.85 moles of butane?
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