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You are given a solid substance and assigned the following task: a. determine if the substance is pure b. if impure, find a suitable method for its purification How you would proceed, clearly explaining your rationale? 2. You find that a solid substance you are trying to purify is very soluble in hexane, but not very soluble in water. You decide that you are going to try to recrystallize it from a solvent pair, consisting of hexane and water. Is this decision based on sound rationale? Comment briefly.
explain how many grams of magnesium sulfate can you produce. Finally if you have 2.00 grams of magnesium as well as 10.0 ml of 6.0 M sulfuric acid, explain how much hydrogen gas can be produced which is the limiting reagent.
By how much is the oxidizing power of MnO4-/Mn2 couple decreased if the H concentration is deceased
Question- You are asked to go into the lab and prepare an acetic acid-sodium acetate buffer solution with a pH of 4.30 +/- 0.02. What molar ratio of CH3COOH to CH3COONa should be used
What is the correct balanced net ionic equation which represents the metathesis reaction between sodium sulfide and aluminum chloride
Use the Henderson-Hasselbalch equation to calculate the pH of a solution that is 14.5 g of HF and 23.0 g of NaF in 125 mL of solution.
question a glycine buffer is prepared by mixing 100 ml of 1.0m glycine ph 6.0 with 100 ml of 0.5m naoh and 300 ml of
Assuming all gases are at the same pressure and temperature, how many liters of CO2 are formed from 15.0L of CO.
The characteristic odor of pineapple is because of ethyl butyrate a compound containing carbon, hydrogen, and oxygen. Combustion of 1.39mg of ethyl butyrate produces 1.29mg of H2O and 3.16mg of CO2. Explain what is the empirical formula of the com..
on being heated in air a mixture of feo andfe2o4 picks up oxygen so as to convert completely to fe2o3. if the
A tank of oxygen holds 14.0L of oxygen (O2) at a pressure of 30.0atm . When the gas is released, it provides 230.L of oxygen. What is the pressure of this same gas at a volume of 230.L and constant temperature?
What is the structural Drawing for Cyclopentane?
What is the osmotic pressure of a homogenous solution at the temperature At 25 o C, as this solution is consisting of 21.0 g urea
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