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The spherical r theta phi equation needs to be used but am having difficulty with the integral of the equations.
The density of a gaseous element at 310oC and 1.02 atm is 2.64 g/L. What is the molecular weight of the element
To 1.00 L of a 0.100 M aquoeus solution of the weak base pyridine C5H5N is added 1.00 ml of 14.0 M NaOH. What fraction of the pyridine molecules in the resulting solution react with water to release
Based on the stability of macro molecules, which one would you choose to deliver in cells: DNA, RNA or protein
The following processes is a likely change in a redox reaction. Label the chemical change as an oxidation process, a reduction process, or neither
17the decomposition of dinitrogen pentaoxide has an activation energy of 102 kj/mol and delta H =+55 kj/mil. What is the activation energy for the reverse reaction
a Oxygen is a common oxidizing agent in nature. What changes in the oxidation number of oxygen must occur if it is to be an oxidizing agent? explain
Ammonia will react with oxygen in the presence of a copper catalyst to form nitrogen and water. From 164.5 degrees C to 179 degrees C, the rate constant increases by a factor of 4.27. What is the ac
An isolated field of corn was found to be segregating for yellowand white endosperm. Yellow is governed by a dominant allele and white by its recessive allele
Dinitrogen tetraoxide, N2O4, decomposes to nitrogen dioxide in a first-order process. If k=2.5 x 10 to the 3rd s-1 at -5degrees C and k=3.5 x 10 to the 4th s-1 at 25 degrees C, what is the activatio
Liquid nitrogen trichloride is heated in a 2.88-L closed reaction vessel until it decomposed completely to gaseous elements. The resulting mixture exerts a pressure of 766 mmHg at 75°C.
The ability of certain people to taste a chemical called PTC is governed by a dominant allele T, and the inability to taste PTC byits recessive t
Several rate constants were measured for a particular reaction at several temperatures. It was found that k = 0.0173 at 923 K, and k = 0.00919 at 773 K. What is the activation energy, Ea , for this
A sample of Rambouill breed in Idaho gave the following data: 891 white and 9 black, Find the allele frequencies
A sample of an unknown gas effuses in 10.1 min. An equal volume of H2 in the same apparatus under the same conditions effuses in 2.16 min. What is the molar mass of the unknown gas
A first-order reaction has a half-life of 20 minutes. Starting with 1.00 x 10 to the 20th molecules of reactant at time t=0, how many molecules remain unreacted after 100
A student measures 0.2452 g of a monoprotic solid acid, and dissolves the solid in water to make 100.0 mL of solution. The entire solution is titrated to a phenolphthalein endpoint with 45.09 mL of
The decomposition of hydrogen peroxide is a first-order process with a rate constant of 1.06 x 10-3 min -1. How long will it take for a concentration of H2O2 to drop from .0200M to .0120 M
List the individual steps used in constructing a Born - Haber cycle for the formation of barium iodide (BaI2) from the elements. Which of the steps would you expect to be exothermic
The pH at whichthe predominant form of an amino acid has a net of 0 is known asthe pI, Estimate the pI of glutamic acid
The result of doubling the inital concentration of x will be to? a) shroten the half-life of the reaction b) increase the rate of constant of the reaction c) decrease the rate constant of the reacti
The dominant allele results in Rh - haspositive individuals, whereas the homozygous recessive conditionresults in Rh - negative individuals
What is the pH of a solution which results from mixing 150 mL of 0.50M acetic acid and 150 mL of 0.50M sodium hydroxide at 25oC?
A reaction is second-order with respect to the reactant R. Which of the following plots will produce a straight line? A) [R] vs. 1/time B) 1/[R] vs. time C)[R]2 vs. time D)1/[R]2 vs. time E) In[R] v
Why do mutations that inactivate the 3'-5' exonuclease activity of DNA polymerase III greatly increase the frequency of mutations