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Calculate the pH at the equivalence point for the titration of .10 M NH3 by .10 M perchloric acid. pKb for NH3=4.74.
A very long insulating cylindrical shell of radius 6.70cm carries charge of linear density 8.60Nc spread uniformly over its outer surface
The pH of a 0.0100 M hypothetical acid, HA, is 4.00. Calculate the Ka for this hypothetical acid.
assume that the company had introduced lean production at the beginning of the second quarter resulting in zero ending
For the following dehydrohalogenation (E2) reaction, draw the Zaitsev product(s) resulting from elimination involving C2-C3 (i.e., the carbon atoms depicted with stereobonds). Show the product stereochemistry clearly
a 21.496 g sample of magnesium is burned in air to form magnesium oxide and magnesium nitride. when the products are
A 12.0-g sample of ice at -19.0°C is mixed with 115.0 g of water at 72.0°C. Calculate the final temperature of the mixture assuming no heat loss to the surroundings.
Consider 4.90 L of a gas at 365 mmHg and 20. degrees celisus . If the container is compressed to 3.00 L and the temperature is increased to 40.degrees celisus , what is the new pressure, P2, inside the container
Which of the following molecules would a flame ionization detector (FID) be sensitive to after separation on a gas chromatography column?
indicate the concentration of each of ion present in the solution formed by mixinga 42.0 ml of 0.170 m naoh and 37.6 ml
At what temperature will nitrogen gas (N2) have the same density as helium gas (He) at 27 degrees C and constant pressure
The first step in industrial nitric acid production is the catalyzed oxidation of ammonia. Without a catalyst, a different reaction predominates: 4NH3(g) + 3O2(g) ? 2N2(g) + 6H2O(g) When 0.0230 mol gaseous NH3 and 0.0250 mol gaseous O2
A 15.0 mL sample of an acid requires 37.3 mL of 0.303N NaOH for neutralization. Calculate the normality of the acid.
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