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A student reacts 0.3000 grams of a sulfate-containing unknown with excess barium chloride. If 0.6500 grams of barium sulfate is produced, what is the percentage sulfate in the unknown?
1) The standard potential of the cell Ag(s)|AgCl(s)\\Cl-(aq)||Ag (aq)|Ag(s) is 0.58 V at 25 °C. Calculate the equilibrium constant for the cell reaction.
Predict whether the following compounds will undergo the benzoin condensation, faster slower than benzaldehyde or give no reaction. You must think about the intermediate and the nucleophile
60.0 mL portion of of 1.70 M solution is diluted to a volume of 288 mili litres. A 144-mili litres portion of that solution is diluted using 115 mLili litres of H2O. Determine the final concentration.
an ideal gas with temperature independent Cp = (7/2)R at 15 degrees C and having initial volume 60 m^3 is heated at constant pressure (P =0.1013 MPa) to 30 degrees by transfer of heat from a resivoir at 50 degrees C.
Method for Trapping a Gas, The decomposition of 3-sulfolene to form 1,3-butadiene generates 1 mole of sulfur dioxide gas per mole of 1,3-butadiene. Substantial quantities of SO2 would be generated if this decomposition were carried out on a large ..
Microwave radiation of wavelength 4.00 mm is used to heat 250.0 grams of water from 10.6 degrees C to 100.0 degrees C. How many photons are needed?
A sealed-end water manometer attached to an air duct reads 1598 cm. An open-end water manometer attached to the same duct reads 556.2 cm.
The following statements describe some physical and chemical properties of sucrose (table sugar). Which response includes all that describe chemical properties, and none that describe physical properties?
A pound of coffee beans yields 30 cups of coffee (4 cups = 1 q). How many milliliters of coffee can be obtained from 1 g of coffee beans.
He finds that the total pressure at equilibrium is 40% greater than it was originally. What is Kc for this reaction?
Determine the number of grams of sodium acetate and the amounts in mLs of 6.00M acetic acid that you would need to make 50.00mL of a sodium acetate/acetic acid buffer solution at the pH equal to 5.00 in order to make a final concentration of 0.05M..
You need to produce a buffer solution that has a pH of 5.10. You already have a solution that contains 10 mmol (millimoles) of acetic acid.
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