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Sample of dry gas 25c has the following composition 0.8904g of N2 0.2741g of O2 0.0152g of Ar 0.00107g of CO2 R=0.0821 What are the partial pressure for each component in the mixture? What is the total pressure?
What us the pH at the equivalence point for the titration of 0.2 M nitrous acid by 0.2 M sodium hydroxide. Ka for nitrous acid is 4.5 x 10^-4
How many grams (g) of calcium phosphide should be dissolved in 501.5 g water to produce a solution that freezes at -1.894 ºC? Kf = 1.86 ºC/molal. Use the ideal van't Hoff factor.
A tank contains 40 lb. of air, 20 lb. of CO2 and 30 lb. of SO2. Compute the volume of the tank if the total pressure of the mixture is 44.08 psi at 86°F. What is the partial pressure of each constituent and the average molecular weight of the mixt..
In a normal melting point, is the sample undergoing is chemical reaction or a change is intermolecular forces
How many grams of NaOH are needed to react with your original mass of C7H6O2 (1.0225) and how many grams of the measured NaOH
Carbon tetrachloride CCl4 was once used in the cleaning industry before people realized it was a carcinoginic compound. Millions of tons of carbon tetrachloride was made in the 50's by reacting carbon disulfide
Compare the properties of elements and compounds. Give two examples of each, including one example that exists in the human body. Explain the atomic nature of one element and one compound found in human body.
2g of ethylenediamine tetraacetic acid edta are dissolvedin sufficient water to make a total volume of 1 liter. foredta
Problem- The molar solubility of calcium hydroxide is 1.18x10^-2 in water. What is deltaG for the dissolution of calcium hydroxide in water, all at 298K
A nucleus in an excited state will return to its ground state, emitting a gamma ray in the process. If its mean lifetime in a particular exited state is about 6.35×10-12 s, what is the uncertainty in the energy of the corresponding gamma ray p..
Draw the trinucleotide formed when a DNA polymerase catalyzes the addition of dCTP do the dinucleotide pppGA.
Confirm that the z-component of orbital angular momentum is a basis for an irreducible representation of A2 symmetry in C3v.
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