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1. The rate (velocity) of a reaction is-
a. The free energy dissimilarity between products and reactantsb. The time it takes the reacting system to reach equilibriumc. The dissimilarity in product concentration divided by timed. The dissimilarity between the rate constants of the forward and the reverse reactionse. All of the above
2. The reaction A + B C + D is an example of-
a. Zero order reactionb. First-order reactionc. Second-order reactiond. Fourth-order reaction
3. For a reaction A + B C + D, the forward rate constant is K1 also the reverse rate constant is K-1. The rate (velocity) of the forward reaction is:
a. (K1)/(K-1)b. (K1)/[A][B]c. [C][D]/[A][B]d. (K1)(K-1)[A][B]e. (K1)[A][B]
Calculate the ph at the equivalence point for titrating 0.170 solutions of each of the following bases with 0.170 M HBr.
Calculate the grams of SO2 gas present at STP in a 5.9 L container. A) 0.24 g B) 0.26 g C) 15 g D) 17 g E) 64 g
a solution containing 0.555 g of an organic solid in 22.0 ml of distilled water shows a freezing point depression of
how do you calculate the density of metals? could this method be used for determining the density of mercury as well?
Calcium cyanamide, CaCN2, reacts with water to form calcium carbonate and ammonia; CaCN2(s)+3H2O(l)-->CaCO3(s)+2NH3(g). a) How many grams of water are needed to react with 75.0 g of CaCN2
Window glass is typically made by mixing soda ash (Na2CO3), limestone (CaCO3), and silica sand (SiO2) and then heating to 1500 degrees Celcius to drive off Co2 from the Na2CO3 and CaCO3.
find the ph and the concentration of H2SO3 HSO3- AND SO3^2- in each solution:(a)0.050M H2SO3 (B) 0.050M NaHSO3
What is the potassium concentration of a solution formed by combining 50.0 mL of 0.400 M KCl with 50.0 mL of: a) 0.100 M PdCl6, b) 0.800 M PdCl6 , c) water, d) 0.200 M PdCl6 (If The Ksp for K2PdCl6 = 6 x 10^-10)
The activation energy of a certain reaction is 46.7 kJ/mol. At 28 C, the rate constant is .0150 s^-1. At what temperature in degrees Celsius would this reaction go twice as fast
the signs of the unsquared wave functions are usually shown in plots of the squared functions. why is this so
a compound is a weak acid with a pka of 7.4. you make 100 ml of a 1.0 m solution of this compound. the ph of the
Compute the wavefunction and the probability to tunnel, for a proton in the potential: V(x)=0, when x 0.00 nm, and V(x)=2.0*10-19 J otherwise. Consider this wavefunction to have a total energy of 1.2 eV, and its functional form in the x>0.00 regio..
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