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A mixture of neon and oxygen gases at a total pressure 975 mm Hg contains neon at a partial pressure of 325 mm Hg. If the gas mixture contains 3.75 grams of neon, how many grams of oxygen are present?
A sample of calcium nitrate, Ca(NO3)2, with a formula weight of 164 g/mol, has 5.00 x 1025 atoms of oxygen. How many kilograms of Ca(NO3)2 are present
Suppose 35.68 mL of 0.01015 M KMnO4 is required to titrate 3.576 g of a sample containing C2O42-. What percentage Oxalate is present in the sample?
A reversible adiabatic expansion of NO2 (g) from an initial V=20dm^3 and an initial T=300K to a final P=1bar. Find Vf, Tf, and the change in entropy for both the system and surroundings.
Calculate the amount of work done against an atmospheric pressure of 1.00 atm when 500.0 g of zinc dissolves in excess acid at 30.0°C.
A 100 liter air tank housed in a gas station ruptured suddenly and air originally at 5atm escaped to the surroundings at 1atm and 25°C. Find ?S of air, had it been let out slowly in a reversible manner
If the density of the vinegar solution is 1.00 g?mL, what is the mass percent of acetic acid present?
Solid CrF3 contains a Cr(III) ion surrounded by six F- ions in an octahedral geometry all at distances of 190 pm. However, MnF3 is in a distorted geometry with Mn-F distances of 179,191, and 209 pm (two of each).
Calculate brightness of a wavelength undergoing Rayleigh scattering.
What are the units of the rate constant? c) What is the average value of the rate constant calculated from the three data sets?
Write the complete balanced equation for the formation of iron(III) hydroxide precipitate from a solution of iron(III) nitrate.
(a)What is the coordination geometry about the vanadium ion incrystals of the alum? Write balanced equations for each reduction step
compute the distance r in Angstroms at which the attractive portion of the L-J potential has diminished to an (absolute) value of RT (T=298K).
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