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A sample of neon has a volume of 610 mL when it is at a pressure of 867 mmHg. What will be the volume when the pressure is increased to 1760 mmHg.
Calculate the molar solubility of Fe(OH)2 in a buffer solution where the pH has been fixed at the indicated values. Ksp = 7.9 x 10-16. (a) pH 7.5 M (b) pH 10.1 M (c) pH 12.0 M
Calculate the concentration of HY3- in a solution prepared by mixing 10.00mL of .010M VOSO4, 9.9mL of .010M EDTA and 10.00mL of buffer with a ph of 4.00
Propose a structure for an amine of formula C4H9N, which does not liberate a gas when treated with NaNO2 and HCl, and has IR absorptions at 917 cm-1, 990 cm-1, and 1640 cm-1,
Determine its molecular formula if the molar mass of the compound = 199.55 grams per mole?
What is the value of the frequency factor A for this reaction? What is the rate constant for the reaction at 350 degrees celcius?
a gas is heated from 268 k to 290 k while its volume is increased from 25.0 l to 37.0 l by moving a large piston within
what fraction of the band would be filled with electrons? Assume that all valence bands (5s, 4d, and 5p) overlap. Show your work and your resulting band diagram.
An aqueous solution of a monoprotic acid HA (Ka = 4.33×10-1) has a pH of 4.88. What is the molarity of the solution? (i.e. [HA]+[A-].)
If 2.50 g CuSO4 are dissolved in 8.0 x 102 mL of 0.25 M NH3, what are the concentrations of Cu2+, Cu(NH3)42+, and NH3 at equilibrium
an aqueous solution contains 12.7 nacl by mass. what mass of water in gramsis contained in 2.5l of the vapor above this
Tums, a drugstore remedy for acid indigestion, contains CaCO3. Write an equation for the reaction of Tums with gastric juice (HCl)
the excess I3- was titrated with 50.00 ml of a 0.02000 M Na2S2O3 solution. What was the mass percent of arsenic trichloride in the original sample?
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