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The rate constant for a certain reaction is 1.3 x 10-5 M-1 min-1 at 416 K and 8.8 x 10-3 M-1 min-1 at 660. K. Calculate the activation energy, Ea, for the reaction in J/mol?
3.2 x 103 J/mol6.1 x 104 J/mol1.7 x 102 J/mol1.5 x 107 J/mol7.6 x 105 J/mol
Initially a mixture contains 0.601 mol each of N2 and O2 in an 7.65-L vessel. Find the composition of the mixture when equilibrium is reached at 3900°C. For the reaction below, the Kc = 0.0123 at 3900°C.
Hydrocarbons containing halogens are very useful molecules in synthetic chemistry. Use tabulated thermodynamic data as needed to calculate
A certain weak base has a Kb of 8.70 × 10-7. What concentration of this base will produce a pH of 10.10
Calculate the OH- concentration of a solution that has [H3O+] of 3.5 x 10 -10M. Is the solution acidic, base, or neutral? report answer in two decimal places.
A 100.0 mL sample of cold water at 21.3 C was added to a 75.0 mL sample of hot water at 55.1 C. Calculate the temperature of the warm water mixture.
Multiple choice questions in Nuclear reactions - make nuclear fission more efficient, which device is used in a nuclear reactor to slow the speed
Find out how many total moles of gas are produced If a sample has 2.10 mL of nitroglycerine (density = 1.592 g/mL) is detonated?
What molarity of sulfide ion will produce the greatest amount of lead sulfide (Ksp = 8.0 x 10-28) precipitate without precipitating any tin(II) sulfide(Ksp = 1.0 x 10-25)
Calculate the pressure of a sample of hydrogen gas collected over water at 24.7C when the barometric pressure is 729.8 torr (see vapor pressure table) PV=NRT
A sample of gaseous C2H2 (acetylene, or ethyne) was stored for one year, yet at the end of this period the sample remained unchanged and no graphite or hydrogen gas had been formed. Briefly explain why there is no inconsistency between the sign of..
If 27.0 mL of 0.0200 M KMnO4 were required to titrate a 0.425 g sample of K3[Fe(C2O4)3] * 3H2O, what is the % purity of the complex?
What is the main structural feature of the azo dyes that causes them to be colored compounds? Methyl Orange is an acid-base indicator. In dilute solution at pH greater than 4.4, it is yellow.
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