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the lowest energy product formed in an aldehyde is treated with secondary amine in the presence of trace acidthe lowest energy product formed in an aldehyde is treated with secondary amine in the presence of trace acidthe lowest energy product formed in an aldehyde is treated with secondary amine in the presence of trace acidthe lowest energy product formed in an aldehyde is treated with secondary amine in the presence of trace acid
calculate the pH of the 1 L solution of 0.25 M TRIS plus the addition of 0.05 M HCL. Show how many moles of TRIS and TRIS HCL are present after the addition of the HCL. Use the Henderson Hasselbalch equation to calculate the pH?
A proton in a linear accelerator has a de Broglie wavelength of 138 pm. what is the speed of the proton?
How many grams of magnesium oxide are formed when 16.4 of oxygen gas, measured at STP, completely reacts with magnesium metal according to this reaction
A weak acid (HA) has a pKa of 4.904. If a solution of this acid has a pH of 4.356, what percentage of the acid is NOT ionized
When a 0.6333-g sample of a compound of carbon, hydrogen and sulfur was burned in excess oxygen, 0.9272 g CO2, 0.3795 g H2O and 0.6749 g SO2 were obtained. In a separate experiment, it was found that, for fixed temperature and pressure
A vapor composed of 0.45 mole fraction ethanol and 0.55 mole fraction acetic acid at 120.0 mmHg (absolute), is in equilibrium with a liquid phase also composed of ethanol and acetic acid.
In milk at 37 C, lactobacillus acidophilus has a generation time (doubling time) of about 75 minutes. Calculate the population relative to the initial value at 30,60,90 and 150 minutes
After the Ketone react with sodium borohydride in ethanol. HCl be added dropwise, and then remove the ethanol by distillation, then add DCM and ice water.
What mass of lead sulfate is formed in a lead-acid storage battery when 1.41g of Pb undergoes oxidation
A sample of gas with a mass of 1.80 g occupies a volume of 921 mL at a pressure of 733 torr and a temperature of 24 C. What is the molar mass of the gas?
One brand of laundry bleach is an aqueous solution containing 4.00% sodium hypochlorite by mass.What is the molarity of this solution.
The partial pressures of gas A and gas B, respectively, are 0.263 atm and 0.676 atm. If 0.160 mol a third gas is added with no change in volume or temperature, what will the total pressure become?
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