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Determine the mobile phase used in gas chromatography? Calculate the stationary phase? Give an example of a stationary phase.
Assuming the drop has a volume of .050 mL, explain what volume of gas will be formed in the person's stomach at a body temperature of 98.6 degrees ferenhight and a pressure of 1.0 atm?
How would you determine how much to pay for a shipment, given that natural gas sells for $5.84 per MMBTU* , given a liquefied natural gas tanker with a rated capacity of 1.47 *10^5 m^3 liquid.
Why do atoms in the gas phase emit the excess energy in the form of light instead of losing the energy via collisions with other atoms in atomic spectrometry?
If sodium iodide is added to the reaction mixture, the rate of methanol formation is dramatically increased (i.e. sodium iodide is a catalyst). Reaction of bromomethane with sodium hydroxide in wate
What will be the volume of this gas when measured dry at standard pressure? The volume of a certain gas is 235ml when collected over water at a temperature of 25 degrees C and a pressure of 698
When a solution resulting from a stoichiometric reaction mixture of a sodium hydroxide, NaOH, and an unknown acid, HA is tested with litmus paper, the litmus is blue.
Discuss how would results be affected if acids other than acetic acid were present in vinegar? Why is it a good idea to rinse a burette w/a little of the solution that you're going to fill it with.
If HP denotes the parent acid and P- the conjugate base, determine the pH of a .12 M NaP solution formed when a tablet containing the salt is dissolved in a glass of water. One of the most common an
Calculate the osmotic pressure associated with 18.7 g of an enzyme of molecular weight 4.74x106 dissolved in the 1509.0 mL of benzene solution at 44.5oC.
Suppose equal masses of these two metals, both initially at 25 C, are added to a beaker of boiling water (100.0 C). The specific heat of iron is greater than that of copper. Which of the following s
A 2.0L pitcher of sweetened Kool-Aid contains 400 g of sugar. The average fuel value of sugars is 17kJ/g. Determine the fuel value (in kJ) of a 500 mL serving of Kool-Aid?
Calculate the most probable value of vx from the Maxwell-Boltzmann distribution function for vx.Explain at what value of vx does the function f(vx) drop to one half of its maximum value?
Determine the average kinetic energy of a SF6molecule at 400K by using the Maxwell-Boltzmann distribution function for averaging purposes.
A single N2 molecule is confined to a cubical nanobox of dimension (20*10^-10) m^3, at 300K. Determine the number of collisions with a wall per second for this molecule on average.
The glucose was melted hence, turning into liquid with very high viscosity. The liquid glucose was more like of syrup however, sticks strongly on the test tube.
Write down a chemical equation showing the equilibrium illustrating its structures below pk1 (pH=1) at PI (pH= 6) , above pK2 (pH=10). Include all changes and label the molecules where appropriate
Determine how many grams of soluble calcium phosphate would be found in a person's mouth if the mineral content of your teeth is largely calcium phosphate and the amount of saliva in the average pe
This same cockroach is caught by a child and placed in a 1-quartfruit jar with a tight lid. Assuming the same level of continuous activity as in the research, will the cockroach consume more than 20
Discuss the cause for these differences in the ratio of the product? Consider that there activity ratio of the products for chlorination and brominating are 5:3.8:1 and 1600:82:1 respectively
Assume that, at a particular moment during the reaction, molecular hydrogen is being produced at the rate of 0.078 M/s. Explain at what rate is P4 being produced?
Explain the primary and secondary structures of proteins. Determine the main differences between DNA and RNA? Describe as well as illustrate these
Determine the major organic product obtained from the reaction of potassium permanganate (KMnO4) and m-nitro isopropyl benzene in the presence of water followed by acid.
When a 0.269 g. sample of a barium compound was treated with excess H2SO4, 0.0891g of BaSO4 produced. Barium can be analyzed by precipitating it as BaSO4 and weighing the precipitate.
Determine the standard enthalpy change of the detonation reaction when the standard molar enthalpy of formation for TNAZ (C3H4N4O6) has not been measured, vat has been calculated to be ΔH f=+