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A reaction has a standardfree-energy change of -13.00 kJ mol -1 (-3.107 kcal mol -1 )Calculate the equilibrium constant for the reaction at 25 degreeC.
A 4.05 g sample of a compound containing only C, H, and O was burned completely. The only combustion products were 10.942 g CO2 and 4.476 g H2O. What is the empirical formula of the compound.
If a student determined that the circumference of a balloon filled by the boiling point of liquid nitrogen was 45 cm, what volume of nitrogen gas has been generated?
calculate the final temperature of the mixture of 150 g of ice initially at 13.5 celsius and 278 g of water initially at 84.5 celsius
If more than one precipitate is expected, list the numbers in increasing order and separate them with commas. For example, 3,4,5 is ok but 5,4,3 is not. pH = 7.00: pH = 9.00: What is the pH to the nearest 0.1 pH unit at which Cd(OH)2 begins to pre..
how do you calculate the hydrogen ion concentration in moles per liter for a solution with at pH value of 11.21? Need the steps please.
The flask was then shaken until the solution was uniform. A 60.0ml- sample of this glucose solution was diluted to 0.500 L . How many grams of glucose are in 100.ml of the final solution?
In the reaction of sodium benzoate with hydrochloric acid to form benzoic acid, if 1.53 g of benzoic acid were formed, how many mmol of sodium benzoate
Calculate deltaG for this reaction at 298K in kJ. What can be said about the spontaneity of the reaction at 298K? (1) spontaneous in the reverse direction
Ethanol is a common laboratory solvent and has a density of 0.789 g/mL. What is the mass, in grams, of 143 mL of ethanol.
if the aluminum block is initially at 25circ c what is the final temperature of the block after the evaporation of the
For the synthesis of an insoluble salt (such as SrCl2 and Na2SO4, to get SrSO4) what are some reasons why percent yield may be greater than 100%? Lower than 100%?
Aspirin (C9H8O4) is produced from Salicylic acid (C7H6O3) and Acetic anhydride (C4H6O3): C7H6O3 + C4H6O3 ----> C9H8O4 + HC2H3O2 a) How much salicylic acid is required to produce 1.5 X 10^2, assuming that all o the Salicylic acid is converted to as..
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