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The vapor pressure of water is 0.196 atm at 60 C. Waht is the equilibrium constant for the transformation H2O (l)--><--H2O (g)
The first-order reaction 2N2O(g) --> 2N2(g) + O2(g), what is the concentration of N20 after 3 half-lives if 0.25 mol of N2O is initially placed into a 1.00-L reaction vessel
Assume that you have carried out a radical chlorination reaction on (R)-2- chloropentane and have isolated (in low yield) 2,4-dichloropentane.
Calculate the final temperature after the two substances are mixed together. The specific heat of water is 4.184 J/ g *c and the specific heat for silicon is 0.7121 J/ g*c.
A catalyst decreases the activation energy of a given reaction by exactly 15 kJ/mol. By what factor does the reaction rate increase at 25oC when the catalyst is used. Assume that the Arrhenius pre-exponential factor, A, is the same for the catalyz..
How many milliliters of 0.10 M HCl must be added to 44.7 mL of 0.40 M HCl to give a final solution that has a molarity of 0.25 M
39 ml of .2 M HCL and 50 ml of .4 M NaOH are mixed. After mixing, but before they react, what is the new M of the HCL and NaOH?
a toothpaste contains 0.24% by mass sodium fluoride, NaF and 0.30% by mass of triclosan, C12H7Cl3O2. The mass of one toothpaste is 119g. How many moles of C atoms are in the toothpaste.
What is the pressure of the gas in this mercury manometer if h = 73 mm and atmospheric pressure
Include activity coefficients in your solubility-product expression. The Ksp of Hg2I2 is 4.6× 10-29.
a mixture of 2- percent ammonia 55 percent hydrogen and 25 percent nitrogen by a volume 9.8 newton per square meter. what is partial pressure of ammonia?
A mixture of Compound X and its enantiomer are placed in the polarimeter and the observed rotation is -5.1 degrees. Which enantiomer is in excess (+ or -)? Calculate the enantiometric
A direct current was passed through a solution containing alanine, Match the behavior with correct amino acid. The isoelectric point of histidine is 10.0.
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