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Limonene (MW 136) is a pleasant smelling liquid found in lemon and orange peels. The bp of limonene is 175, but it co-distills with water at 97.5. If the vapor pressure of water at 97.5 is 690 mm Hg, what percentage of the steam-distillate is limonene?
consider the three flasks in the diagram below. assume the temperature is held constant. when the stopcocks are closed
The resulting solution required 51.30 mL of 0.08765 M AgNO3(aq) to precipitate the Cl-(aq) and Br-(aq) as AgCl(s) and AgBr(s). Calculate the mass percentage of NaCl(s) in the mixture.
If 37.5 mL of 0.274 M HCl solution is needed to neutralize an aqueous solution of calcium hydroxide, how manygrams of calcium hydroxide must be in the solution prior to the initiation of the titration experiment
How many grams of Na3PO4 will be needed to produce 425mL of a solution that has a concentration of Na+ ions of 1.10M ?
What is the approximate thermal energy in kJ/mol of molecules at 0° C. Express your answer to the nearest 0.1 kJ/mol
Match the following properties of liquids to what they indicate about the relative strength of the intermolecular forces in that liquid. Strong intermolecular forces: Weak intermolecular forces
What molarities of HBrO (pKa 8.64) and KBrO are needed to make a buffer with a pH of 7.9 if the buffer strength is 0.35 M? What volumes are needed if both species are available in 5.0 M stock solutions and 1500 ml of buffer are to be made
What is the pH of Sodium Acetate solution before the HCL is added and after the HCL is added?
explain the significance of the chromic acid test. what would you observe in the case of a positive result? do you
Calculate the percent by mass of potassium nitrate in a solution made from 45.0 g KNO3 and 295 mL of water. Density of water is 0.997 g/mL.
Four different amino acids can be combined in different sequences to form how many different tetrapeptides?
give the structure and names of five alkenes having the molecular formula C6H12 that produce hexane on catalytic hydrogenation
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