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Question- After recrystallization a student obtained a very low percent recovery of a solid. Describe a probable cause of this problem and explain what steps might be taken to increase the recovery.Provide complete description
What is the equilibrium concentration of fluorine if the initial concentrations of bromine and fluorine were 0.113 moles/liter in a sealed container and no product was present initially
why does the alcohol become a double bond instead of remaining analcohol? doesnt it only turn into a double bond if it
What is the mass percent of sucrose (C12H22O11, Mm=342 g/mol) in a 0.350-m sucrose solution?
Calculate the rate at each time interval & average rate for the reaction and determine the rate of each time interval, and then calculate the average rate for the reaction in terms of [H 2 O].
A particular solution has a hydrogen ion concentration of 2.13 x 10-13 M. What is the pH of this solution?
2.05 mL of a sodium hydroxide solution is needed to react completely with 0.5210 g of KHP (molar mass+204.22) What is the concentration of the sodium hydroxide solution
A cetain weak acid, HA, has a Ka value of 1.4E-7 A) Calculate the percent ionization of HA in a 0.10 M solution. B) Calculate the percent ionization of HA in a 0.010 M solution
why would it be difficult to determine the point where the limiting reactant changes if 13.0 ml of 1m hclaq were used
using a sample 10.21 mol of o2 is maintained in a 0.8129 l container at the temperature of 300.3 kelvin. calculated
One liter of a buffer solution is made by mixing exactly 500 mL of 1.000 M Acetic Acid and 500 mL of 0.500 M Calcium Acetate solutions.
For the following reaction, denote whether the equilibrium lies with the products or with the reactants.2NO2(g) + 02(g) 2NO2 (g) Kp = 5.0*1012
polonium-218 is an alpha emitter with a half-life of 3.0 minutes. if a sample contains 55 mg of po-218 atomic mass
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