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Problem- The fact that carboxylic acids have higher boiling points than alcohols is attributable largely to which of the following?
A) Low molecular weight carboxylic acid molecules are soluble in water.
B) Low molecular weight alcohol molecules are soluble in water.
C) A given pair of carboxylic acid molecules tends to form two hydrogen bonds between its members.
D) Carboxylic acid molecules readily give up a hydrogen ion.
Show all work, use additional paper if necessary.
The standard enthalpy of formation of ammonia vapor at 298K is -46.11kJ/mol. Determine its standard enthalpy of formation at 360K, given that the molar heat capacities of the reactants as well as products are given by: Cp,m=a+bT+c/T2.
For a gaseous reaction, standard conditions are 298 K and a partial pressure of 1 atm for all species. For the reaction C2H6 (g)+ H2 (g) -> 2CH4
A solution is prepared by mixing 77.0 mL of 5.00 M HCl and 11.0 mL of 8.00 M HNO3. Water is then added until the final volume is 1.00 L. Calculate [H+], [OH -], and the pH for this solution.
A buffer that contains 0.55 M base, B, and 0.30 M of its conjugate acid, BH+, has a pH of 8.94. What is the pH after 0.0020 mol HCl is added to 0.25 L of this solution.
the second one volume is 60 and pressure 658psia we want to join them togother in one pipline what is the final equilibriume pressure?
Suppose a 10 mL sample of solution is to be tested for Cl- by adding .2 mL of .15 M AgNO3. What is the minimum number of grams of Cl- that must be present in order for AgCl(s) to form
Write the half-reactions for the silver-silver chloride and calomel reference electrodes.
Which ionic compound would be expected to have the highest lattice energy (a) KO2 (b)NaO2 (c) Li2O (d) RbO2 (15) Arrange the following spectral regions in orger of increasing energy infrared, microwave, ultraviolet visible (a) microwave
calculate the potential of a platinum electrode immersed in a solution that is prepared by mixing 25 ml of 0.0832 M V2(SO4)3
Problem- you need to to produce a buffer solution that has a pH of 5.17 You already have a solution that contains 10 mmol (millimoles) of acetic acid. How many millmoles of acetate (the conjugate base of acetic acid) will you need to add to this s..
Determine the following characteristics of the titration curve for 25.0 mL of 0.400 M NH3(aq) titrated with 0.335 M HI(aq). (For NH3, Kb = 1.8x10-5.) Enter scientific notation as 1.23E4.
A sample of gas with a volume of 750 mL exerts a pressure of 98 kPa at 30 c. what pressure will the sample exert when it is compressed to 250 mL and cooled to -25 degree celsius.
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