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Determine the numbers of mL of NaOH are needed to completely neutralize this solution if 16.5 mL of .120 M NaOH is required to reach the first equivalence point of a solution of citric acid (H3C6H5
The hypotenuse of the right triangle is 12inches and area is 24 square inches. Determine dimensions of triangle, correct to one decimal place.
Determine the major component of the mother liquor obtained in the re-crystallization step? Discuss why didn't this component crystallize along with the 4-nitrobromobenzene?
Explain what new substance has been produced when the 2-methylpropene is bubbled into the dilute sulfuric acid at room temperature, it appears to dissolve.
At 140 C a student wished to prepare ethylene gas by the dehydration of ethanol, using sulfuric acid as the dehydrating agent. Allow-boiling liquid was obtained instead of ethylene.
A certain anesthetic contains 13.5 % hydrogen, 64.9 % carbon, and 21.6 % oxygen by mass. At the temperature of 120C and 750mmHg, 1.00L of the gaseous compound weighs 2.30g. Determine the molecular
What can you say about the effects of lone pairs on rotation barriers when the barrier for rotation about the C-O bond in methanol is only 1 kcal/mol. recalling the rotation barriers for ethane?
The speedboat takes one hour longer to go 24miles up the river than to return. If boat cruises at 10miles per hour in still water, determine rate of current?
An 0.3 M solution of calcium nitrate is mixed with a 0.15 M solution of potassium phosphate in a 2.0 L container. Determine the concentration of all aqueous species at equilibrium if 37.24grams of c
A soluble fluoride-containing salt such as NaF is added to "fluoridate" the water when a sample of hard water contains about 2.0x10-3MCa2+, describe the maximum concentration of F- that can be prese
If the pilot maintains the constant reading of 200 miles per hour on airspeed indicator as aircraft climbs from sea level to an altitude of 10,000 feet, write the linear equation which expresses tru
The ions Ba+2 and Ca2+ can be separated by the difference in solubility of the their fluorides In principle, CaF2 and BaF2. If you have a solution that is 0.10M in both Ba2+ and Ca2+, C
In 2- the dx2-y2 orbital of rhenium interact strongly with the ligands. For one ReCl4 unit in this ion, draw the four group orbital of the chloride ligands. Find out the group orbital of suitable s
Find out the lowest energy term for each; (a) p3 (b) p1d1 (as in the 4p13d1 configuration). For each of the following configurations, construct a microstate table and reduce the table
Illustrates the Newman projection viewed along the C1-C2 bond and the C5-C4 bond of cis-1,2-dimethylcyclohexane. Include all axial and equatorial atoms and groups.
Calculate the rotation barrier for the C-N bond of methylamine by using the rotation barrier about the C-O bond in methanol is only 1kcal/mol.
Determine the is electric pH when anionic form and cation produce of M is equal in amount if solid M(OH)n has a pKsp of 10 and the Kf for [M(OH)]^2- is 10^8?
Suppose you are carrying out a reaction in the laboratory and need to convert the 1.00 mole of reactant X into products. This reaction shows first-order kinetics, and the reaction mixture has a
The average rate of disappearance of ozone, O3, in the reaction 2O3 (g)---> 3O2 (g) is found to be 9.0 x 10 -3 M over a certain interval of time. Determine the rate of appearanc
Alkenes chlorination is not a generally useful reaction because most alkenes have hydrogen's in many different positions, causing mixture of chlorinated products to result.
Determine the pH of a solution prepared by mixing the 100 ml of 0.1M HCl with 200 ml of 0.1M sodium acetate and diluting the mixture of 1L? Where the pKa of acetic acid is 4.76
A 1.00 L flask was filled with the 2.00 mol gaseous NO2 and 2.00 mol gaseous SO2 and heated. After equilibrium was reached, it was found that 1.30 mol gaseous NO was present.
In how many ways can five identical Twilight key chains be provided to 5 lucky students at the Twilight party with sixteen students in attendance?
Determine the highest energy photon that can be absorbed by aground-state hydrogen atom without causing the ionization? Determine the wavelength of this radiation?
A violet line is observed at434 nm in the spectrum of atomic hydrogen. Calculate the beginning and ending energy levels of the electron during the emission of energy that leads to this spectral lin