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The vapor pressure of pure benzene (C6H6) is 0.930 atm at a certain temperature. A solution was prepared by dissolving the 10.0 g of a non-dissociating, nonvolatile solute in the 78.11 g of benzene
A 331 mL container holds 0.146 g of Ne and an unknown amount of Ar at 308 K and a total pressure of 622 mmHg. How can estimate the moles of Ar present.
A solution which is having 250 mL contain the 50.0 mL acetone and 45.0 mL ethyl alcohol and the remainder water? Determine the % acetone,% ethyl alcohol, and the water in the solution?
If the concentration of a substrate is changed from 2.46 × 10-3 M to 4.14 × 10-1 M, by what factor does the rate of the reaction change?
If the concentration of a catalyzing enzyme is changed from the 3.16 × 10-3 M to 5.58 × 10-1 M, by what factor does the rate of the reaction change?
Determine the structure of the intermediate species that attacks the ferrocene to produce the acetylferrocene? What other organic molecule is produced?
The absorbance of this solution is 0.245 and the linear equation for the standard curve that you have already prepared is:y=3.46x+0.013. Suppose you and your lab partner weigh out some supper sulfat
Determine the numbers of grams of potassium chlorate decompose to form the potassium chloride and 695 mL O2 at the 401 K and 715 torr?
Aluminum reacts with excess hydrochloric and to produce the aqueous aluminum chloride and 38.8 mL of hydrogen gas over water at300 K and 766 mmHg. Determine the numbers of grams of aluminum
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
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?
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
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