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What steps would you take to separate the following four organic compounds using an acid/base solvent extraction? Compounds: m-anisic acid, p-toluidine, thymol, indane
Hydrogen peroxide, H2O2, is used to disinfect contact lenses. What volume of O2, in mL, of O2(g) at 35°C and 731 mmHg can be liberated from 50.0 mL of an aqueous solution containing 3.00% H2O2 by mass? The density of the aqueous solution of H2O2 i..
In the tin oxide laboratory activity, what was the color of the vapor emitted when the nitric acid was added to the tin.
H2C2O4(aq), Ka1 = 6.5 x 10-2 and Ka2 = 6.1 x 10-5. Don't forget that Kw = 1 x 10-14. Then Determine K for the reaction
Copper has two isotopes: Cu-63 (abundance = 69.2%, mass = 62.930 amu) and Cu-65 (abundance = 30.8%, mass = 64.928 amu). Calculate the (average) atomic mass of copper.
A calorimeter contains 17.0 mL of water at 15.0 degrees celcius When 1.40 g of (a substance with a molar mass of 69.0 g/mol) is added, it dissolves via the reaction X(s)+H2O(l)->X(aq)
Most top-loading balances used in this experiment measure a mass only to the nearest mg(+/- 0.001 g). This significantly affects the calculation of R in the experiment
Calculate the P-Cl bond energy, given the following reaction and the average bond dissociation energy of chlorine as 240kJ/mole.
sample of KHP required 33.86 mL of sodium hydroxide, what was the molarity of the sodium hydroxide solution?
A mixture of CO, CO2 and O2 is contained within a 275 mL flask at 0C. If the total pres- sure is 780 torr, the CO has a partial pressure of 330 torr and the CO2 has a partial pressure of 330 torr, what is the partial pressure of O2?
how would you make a 500 ml solution that is 10mM Tris, 2mM EDTA. The formula of Tris is 121.1, EDTA's FW is 187
A 2.50 mL buffer solution is .250 mol in acetic acid and .250 mol in sodium acetate. (Ka=1.8x10 to the -5). What is the initial pH to the buffer solution
calculate the flow rate of solution B needed to concetrate 300 ibm/hr of 55% H2SO4 (solution A) and the resulting flow rate of solution C
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