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Which byproduct would be obtained in high yield if the diazotization of p-toluidine were carried out at 30 oC instead of 0-5 oC?
What mass of this substance must evaporate in order to freeze 160 g of water initially at 19 C? (The heat of fusion of water is 334 {J/g}; the specific heat of water is 4.18 {J/g c. K}.)
What is the pressure inside a 5.00 L vessel containing 0.0040 mol of nitrogen gas at a temperature of 23 degrees C
Hydrogen sulfide decomposes according to the following equation, for which Kc = 0.00011 at a given temperature. 2 H2S(g) 2 H2(g) + S2(g)
find the specific solubilities (in g/100g H2O) in both cold and hot water for AgCl, PbCl2, and Hg2Cl2.
A 325-mL sample of solution contains 25.3 g of CaCl2, which is fully dissolved. (a) Calculate the molar concentration of Cl- in this solution. (b) How many grams of Cl- are in 0.100 L of this solution?
Name a compound with the formula, C5H12, which will show only one peak in the NMR spectrum.
the tip of a vinegar buret but disappears during the course of the titration, how would this affect your calculation of the concentration of acetic acid
The pK value of the system is 6.1. If the [CO2] is expressed in terms of partial pressure and equals 1.3kPa and the bicarbonate concentration is 2.2 x 10^-3 M, what is the pH of the solution.
How many moles of Na2SO3 were added to the calorimeter cup if 40.0mL 0.50 M NaOCl and 60.0mL 0.50 M Na2SO3 were combined?
If it required 27.92 mL of NaOH to reach the equivalence point, what was the concentration of the acetic acid solution?
Na2CO3(s) (sodium carbonate) can be prepared by heating NaHCO3(s) (sodium bicarbonate). If a sample of NaHCO3 is placed in an evacuated flask and allowed to achieve equilibrium with the products which are formed at 100ºC, what will the total gas p..
Benzene has a heat of vaporization of 30.72;{{rm{kJ}}}/{{rm{mol}}} and a normal boiling point of 80.1 ^circ {rm{C}}. At what temperature does benzene boil when the external pressure is 420 torr?
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