Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Question- A sample contains 132 mg of compound A along with 24.0 mg of impurity B. The solubility of compound A in water at 25 oC is 14.0 mg/ml, and at 100 oC is 110 mg/ml. The impurity B has the same solubility behavior as compound A in water.
A) By showing all the calculations, describe how you would purify the sample.
B) How many steps of crystallization you needed to do to get pure compound A?
C) What is the amount of pure compound A after all crystallization steps?
D) Calculate the percent recovery of pure compound A after all the crystallization steps.
Write solution with complete explanation of required steps
a tree is exactly 10 m tall.a what must the total molarity of solutes if the sap rises tothe top of the tree by osmotic
Gas Nitrous Oxide (N20) is used as an anesthetic and in aerosol cans to produce whipping cream. It is a potent greenhouse gas and decomposes slowly to N2 and O2.
calculate the number of moles of magnetic iron oxide produced.
calculate the mass of propylene glycol c3h8o2 that must be added to 0.340 kg of water to reduce the vapor pressure by
In the hydrogen atom, for which transition is the emission line observed at shorter wavelength, n=4 to n=2 or n=5 to n=1? Show the equation needed to figure this out. Consider the relative size of delta E to determine the relative wavelength.
What is the percent purity of the calcium hydroxide if the titration requires 21.42 mL of the acid to reach the endpoint
Compute the mass of Urea that must be dissolved in 217g of water at 35 degrees Celsius to produce a solution with a vapor pressure of 37.9 mm Hg (At 35 degrees Celsius, PH2O=42.2 mm Hg.
Which of the following combinations would be the best to buffer an aqueous solution at a pH of 5.0? H3PO4 and H2PO4- (Ka=7.5e-3) HNO2 and NO2 (Ka=(4.5e-4) CH3CO2H and CH3COO (Ka= 1.8e-5) H2PO4 and HPO4 (Ka=6.2e-8)
In the reaction A + 2B ------> P, the initial concentrations are all 0.90 M. If the equilibrium constant is 1.5 E -06, what are the equilibrium concentrations. E is exponent of 10.
A solution is prepared by dissolving 20.0 g of K2HPO4 and 25.0 g of KH2PO4 in enough water to produce 1.0 L of solution. What is the pH of this buffer
What is the new boiling point point of water if you add 188 grams of magnesium chloride to 1250 g of water.
Benzoic acid is a weak acid that has antimicrobial properties. Its sodium salt, sodium benzoate, is a preservative found in foods, medications, and personal hygiene products. Benzoic acid dissociates in water:
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd