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An acetone/water solution which is 8.50% acetone by mass has a density of 0.9867 g/mL. Explain how many kilograms of acetone are contained in 6.00qt of this solution (1qt = .946L)?
After mixing 2.00g of H2S with 2.00g of NaOH, a 92.0% yield of sodium sulfide is obtained. Calculate the experimental yield in grams obtained in that reaction
Molecule with 3 single bonds and 1 lone pair of electrons around the central atom is predicted to have what type of molecular geometry? d. which of the following molecules is polar? PBr5, CCl4, BrF5, XeF2, XeF4 e. a sp3d hybridized central atom ha..
Find the equilibrium pH of a 10^-3 M NaCN solution by using graphical methods, try to find the equilibrium pH with the charge balance and separately with the proton condition.
the volume of dry gaseous hbr at stp that can be obtained from the reaction of 81.6 grams of pbr3 with excess water is
to what pressure should you fill the acetylene tank to ensure that you run out of each gas at the same time? Assume ideal behavior for all gases.
We are investigating the keto-enol tautomerization of acetylacetone (pentane-2,4-dione) in an aqueous solutions at 25 degrees Celsius. The standard reaction Gibbs energy for the enol ketone tautomerization is -3.64 kJ/mol.
hydrogen peroxide is used as a cleaning agent in treatment of cuts and abrasions for several reasons. In the laboratory, small quantities of hydrogen peroxide can be prepared by the action of an acid on an alkaline earth metal peroxide, such as ba..
A student added a total of 15.00 mL of 0.5241 M HCl to 1.4881 g to of an unknown which contained CaCO3 (molar mass = 100.09 g/mol). The resulting solution required 12.21 mL of 0.1211 M NaOH to back titrate the excess HCl. What was the percent CaCO..
Now suppose you have only added 24.0mL of 0.01M NaOH solution to the 25.0mL of HCl solution, what is the molarity of HCl left in the solution? What is the pH of the resultant mixture?
Calculate the concentrations of all species present and the pH in 0.10 M solutions of the following substances. See appendix C for values of equilibrium constants
Calculate the molarity of a solution made by adding 28.4mL of concentrated potassium hydroxide(34.5% by mass, density 1.46g/mL) to some water in volume metric flask, then adding water to the mark to make exactly 250mL of solution.
Aluminum foil used for storing food weighs about 0.3g/in2. How many atoms are contained in one square inch of aluminum foil
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