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The activation energy for a particular reaction is Ea = 14.20 kJ. What percentage of the molecules are at or above the activation energy at 500.0 K?
Find delta E, delta H, q, and w for the change in state of 1.0 mol H2O(l) at 84 degree C to H2O(g) at 109 degree C. The heat capacity of H2O(l)= 75.3 J/molK, heat capacity of H2O(g)= 25.0 J/molK, and the heat of vaporization of H2O is 40700 J/mol ..
KOH(aq)+ CoCl2(aq) --> KCl + Co(OH) what are the states of matter for the products?
A flask containing only NO2(g) at an initial pressure of 8.60 atm is allowed to reach equilibrium. Calculate the total pressure in this flask at equilibrium.
A chemist performed a titration experiment in order to determine the concentration of a given aqueous solution of HCl (an acid). She pipeted 20.00 mL of the HCl solution into an Erlenmeyer flask.
Draw Lewis structures of the four molecules and/or ions with the formulas given below and figure out which two of these are isoelectronic with each another.
Problem 2.2 The temperature of 1.30 mol of an ideal gas increases from 10.4 celciusto 48 .8 celcius as the gas is compressed adiabatically. Part A Calculate q for this process, assuming that .C=3R/2 Express your answer to one significant figure an..
Draw the fat molecule whose components are glycerol and butanoic acid. You may omit hydrogen atoms.
Calculate the molar mass of naphthalene, the organic compound in mothballs, if a solution prepared by disovlving 7.50g of naphthalene in exactly 150g of benzene has a freazing point 2.0 degrees
What is the maximum mass of water that can be released by heating a 8.904 g sample of nickel(II) sulfate heptahydrate?
What is the half life of this reaction if the initial concentration is 1.40 M. b) Given this same starting concentration, calculate the concentration after 3 minutes. c) How long would it take for the starting concentration to reduce to 0.50 M?
The two phases are allowed to come to equilibrium with their product ammonia in a vessel of fixed volume and at a temperature
what is a detailed mechanism for the formation of dibenzalacetone? This reaction is beginning with acetone and benzaldehyde and is treated with NaOH and then forms dibenzalacetone.
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