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Initially a mixture contains 0.629 mol each of N2 and O2 in an 6.64-L vessel. Find the composition of the mixture when equilibrium is reached at 3900°C. For the reaction below, the Kc = 0.0123 at 3900°C.
N2(g) + O2(g) <==> 2 NO(g)
[N2] (M)[O2] (M)[NO] (M)
Identify the intermolecular attractions for dimethyl ether and for ethyl alcohol. Which molecule is expected to be more soluble in water?
Selenious Acid, H2Se)3, is primarily used to chemically darken copper, brass, and bronze. It is a diprotic acid with the following Ka values: Ka1 =2.7x10-3 and Ka2= 5.0x10-8.what is the pH of a 2.89 M solution of selenious acid?Estimate [HSe)3-] a..
the label on a popular brand of margarine states it is made from partially hydrogenated corn oil. which statement is
Statements correctly describe(s) the relationship between the structure of a fatty acid and its melting point? a. Saturated fatty acids have melting points that increase gradually with molecular weight.
A 15.0-g sample of a hydrocarbon is placed in a balloon at 1.00 atm and 25°C, and the volume of the balloon is 12.2 L. The hydrocarbon is 79.89% carbon and 20.11% hydrogen by mass. Determine the molecular formula of the hydrocarbon.
A 81 L sample of dry air cools from 145C to -22C while the pressure is maintained at 2.85 atm. What is the final volume?
what is the ph change of a 0.270m solution of citric acid pka 4.77 if citrate is added to a concentration of 0.145m
Al is added to Si to give an extrinsic semiconductor with a conductivity of 2 ( cm)^-1 How many Al atoms are added per cm^3? How many Si atoms are there for each AI atom
What volume in mL of 0.075 M NaOH is required to neutralize the following solutions? A. 200 mL of a 0.0500 M H2C2O4(diprotic acid) solution.
the air in the laboratory was measured with a barometer to be 7.20 x 10 squared mm Hg. what is the laboratory air pressure in atm.
determine volume of na2s2o3 sodium this sulfate and h2o water are required to produce an estimated 0.10 m solution
Calculate the volume in liters of 88.2 lb of CCl4 (density = 0.00160 kg/cm3; 1 lb = 454 g). A. 64.0 L B. 40.0 L C. 28.0 L D. 25.0 L
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