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Lactic acid, HC3H5O3, is a monoprotic acid that dissociates in aqueous solution. If a solution containing 0.50 M lactic acid is 1.66 percent dissociated to ionic form, calculate the value of Ka for lactic acid.
The tetrahedral intermediate in the Fischer esterification of formic acid (HCO2H) with 1-butanol has the structure
If delta H is negative and delta S is positive, which of the following is true? a) The reasction os never spontaneous, b) the reaction is always spontaneous
Sulfurous acid, H2SO3 has acid dissociation constatns Ka1= 1.5*10^-2 and Ka2= 6.3*10^-8. What is the pH after 10.00 mL of 0.1000 M NaOH is added to 10.00 mL of 0.1000 M H2SO3
A bacterial culture isolated from sewage produced 35.5mL of methane, CH4 at 31degrees Celcius and 753 mmHg. What's the volume of this methane at standard temp. and pressure(0 degrees C and 760 mmHg)
How much energy must be supplied to break a single 21Ne nucleus into separated protons and neutrons if the nucleus has a mass of 20.98846 amu. What is the nuclear binding energy for 1 {\rm mol} of {\rm ^{21}Ne}
Which of the answers below is the correct order for these compounds according to increasing covalent character of their bonds? NCl3, HF, NH3 NCl3, NH3, HF HF, NH3, NCl3 NH3, NCl3, HF
Suppose a piece of silver jewlery contains 5.00 * 10^22 of silver. how many dozens of silver atoms are in the piece of jewlery.
What is the percent yield of elemental sulfur if 7.54 grams of sulfur are obtained from the reaction of 6.16 grams of SO2 with an excess of H2S. 2H2S + SO2---> 2H20 +3S
Calculate the reversible emf of the cell and its temperature coefficient and determine the amount of heat to be supplied or removed from the cell to maintain a constant temperature of 25 oC under reversible conditions;
a wave in the ocean has amplitude of 3m. winds pick up suddenly increasing the waves amplitude to 6m. how does the
Give some values of pressure and temperature at which you are sure that the substance called zinc exists in an equilibrium state as a) solid and b) vapor
a chemist makes an hbr hydrogen bromide sample and observes that this sample occupies capacity of 279 ml at the
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