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To a solution of propyne in diethyl ether, one molar equivalent of CH3Li was added and the resulting mixture was stirred for 0.5 hour. After this time, an excess of D2O was added. Describe the major organic product(s) of this reaction. CH3C?CD + CH4 or CH3C?CCD or CH3C?CCH3 or CH3C?CD + CH3D or CD3C?CD3
A gas at 89 degrees celcius occupies a volume of 0.67 L. At what kelvin temperature will the volume increase to 1.12 L. ?
Determine how much time (in seconds) is needed to form 150. g Na from a sodium chloride melt by a 25 Ampere current?
These 3 solutions including 2.362 g of Rb2S, 1.635 g of NaClO 4 , and 0.796 g of CuCl 2 , respectively are combined together? now calculate what would be the mass of this precipitae?
Calculate the change in entropy when one mole of ice at ?10.0°C and 1 atm is converted to liquid water at ?5.0°C and 1 atm
The DHfus of ethanol (C2H5OH) is 4.60 kJ/mol. How many kilojoules of heat are required to melt 24.5 g of ethanol at its freezing point.
liquid NCl3 in a 2.50L closed container is heated until it decomposes completely to gaseous products. the resulting mixture exerts a pressure of 745mm Hg at 95 degrees celsius
how many moles of solute are present in 700ml of 0.230M SrBr2
Using as sample of gas of 12.0 moles are in a tank of 8.00 Litres at the temperature of 22.6 degree celsius. compute the difference in pressure between CH 4 and an ideal gas under these conditions
Sodium sulfate dissolves as follows: Na2SO4(s) 2Na+(aq) + SO42- (aq). How many moles of Na2SO4 are required to make 1.0 L of solution in which the Na concentration is 0.10 M.
The atomic weight of a newly discovered el- ement is 98.225 amu. It has two naturally occuring isotopes. One isotope has a mass of 96.780 amu. The second isotope has a per- cent abundance of 41.7%. What is the mass of the second isotope?
In a reaction 82.00 g of sodium reacts with 74.00g of ferric oxide to form sodium oxide and iron metal. calculate the mass of solid iron produced
A 0.456 gram sample of an unknown monoprotic acid (lets call it HZ) was dissolved in some water . Then the acidic solution was titrated to the equivalence point with 32.5 mL of 0.174 M KOH.
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