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Subsequent to the sample has been dissolved in hot water and then cooled explain why would one scratch the sides of the flask?
Describe how you would seperate a mixture containing acid and benzophenone (a neutral substance). Both compounds are insoluble in water and soluble in diethly ether.
Explain what is the height of a column of liquid in a barometer if the density of the liquid is 1.076 g/mL as well as the local atmospheric pressure is 0.87 bar
When a 0.6333-g sample of a compound of carbon, hydrogen and sulfur was burned in excess oxygen, 0.9272 g CO2, 0.3795 g H2O and 0.6749 g SO2 were obtained. In a separate experiment, it was found that, for fixed temperature and pressure
its molar mass is 71.61 g/mol, how many grams of this compound must you burn to release 866.80 kJ of heat?
The ore is dissolved in hot, concentrated acid and passed over a reducing agent so that all the antimony is in the form Sb3 (aq). The Sb3 (aq) is completely oxidized by an aqueous solution of BrO3-(aq). Complete and balance the equation for this r..
Which of the following compounds contains a chiral carbon molecule? a) chloroethane b) 1,1-dichloroethane c) dibromochloromethane d) 2-butanol
part i electron configurations1. what is the ground state electron configuration of mercury hg?2. is mercury expected
Consider a perfect gas with Cvm = 28.0 J/mol-K trapped in a piston/cylinder arrangement with cross-section area of 250.0 cm^2. The gas expands irreversibly against a fixed external pressure of 1.0 atm adiabatically
350.0 mL of 2.50 M HCL are added to 400.0mL of 5.00 M HCL. Assuming that the volumes are additive, what is the final concentration
Using structural formula, write a balanced equation for the phosphoric acid catalyzed reaction of cyclohexanol to give cyclohexene.
When 22.63 mL of aqueous NaOH was added to 1.214 g of CHES (pKa =9.39; and MM = 207.29 g/mol) dissolved in 41.37 mL of water, the pH was 9.24. Calculate the molarity of NaOH.
A certain ionic compound is found to contain 0.012 mol of sodium, 0.012 mol of sulfur and 0.018 of oxygen. Explain what is its empirical formula
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