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The molar solubility of manganese(II) carbonate is 4.2 ? 10-6 M. What is Ksp for this compound?
Find the mass of sodium required to produce 5.68 L ofo hydrogen gas at STP from the reaction described by the following equation: 2Na+2H2O-->2NaOH+H2
How many grams of acetic acid will you need to prepare the 500 mL buffer? Note that the given concentration of acetate refers to the concentration of all acetate species in solution.
What data would you plot in order to use the Nernst equation to determine the concentration of an unknown solution of ions?
Raidum-226 (atomic mass=226.025402 amu) decays to radon-224 (a radioactive gas) with a half-life of 1.6 x 10^3 year. What volume of radon gas a (25 degrees C and 1.0 atm) is produced by 1.0 g of radium in 5.0 days
What is the mass of silver bromide AgBr precipatated from 2.96 g of iron (III) bromide FeBr3 ? FeBr3 + AgNO3 = AgBr + Fe(NO3)3.
How many molecules of actin can a muscle cell hold. Given: cell is spherical and has no other components with a diameter of 50 micrometers. Diameter of actin is 3.8 nanometers.
In the welding shop of the XYZ Manufacturing plant you have a cylinder with a volume of 548L of a compressed gas, and the pressure gauge shows 238 psig at the room temperature 25 C.
How much heat is realesed at constant pressure if a 10.0-L tank containing 87.0atm of hydrogen sulfide gas condenses at its boiling point of -60.0 Celsiuse?
How many milliliters of 0.200 M NaOH will be required to titrate 14.5 mL of 0.479 M H2SO4?
A 1.245 gram sample of a compound containing barium and oxygen was dissolved in hydrochloric acid to give a solution of barium ion, which was then completely precipitated out with an excess potassium chromate to give 2.012 grams of barium chromate..
Three isotopes of silicon occur in nature: 28Si (92.21 %) which has a mass of 27.97693 amu; 29Si (4.70 %) which has a mass of 28.97659 amu; and 30Si (3.09 %) which has a mass of 29.97376 amu. Calculate the average atomic mass for silicon atom.
Water autoionizes to produce hydronium ion and hydroxide ion. The product of the concentrations of these ions equals the water autoionization constant, Kw. This ionization constant depends on temperature, the enthalpy change, and the entropy chang..
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