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The Wittig reaction involves coupling between a phosphonium ylide and a carbonyl-containing molecule. If a chemist wants to use the Wittig reaction to synthesize 2-methyl-2-butene, which reactants should be used?
Carbonyl Compound %u2013 Option 1) 2-butanone Option 2) 2-ethanone
Phosphonium Ylide %u2013 Option 1) (C6H5)3P=CHCH3 Option 2) (C6H5)3P=CHCH2CH3
Choose only one option of carbonyl and phosphonium.
A gas occupies 22.4 L at STP and 14.5L at 100 C and 2.00 atm pressure. how many moles of gas did the system gain or lose?
The simplest formula of a substance is found to be CH2O, and its approximate molar mass is found by experiment to be 93 g•mol-1. What is its exact molar mass?
Compute the number of moles of Chlorine atoms in 3.01×10^24 formula units of magnesium chloride,MgCl2 .
consider the reaction CO2+H2=CO+H2O.The equilibrium concentrations are [CO]= 0.050M, [H2]=0.045M, [CO2]=0.086M, and [H2O]= 0.040M. Calculate K .
What volume (L) of 0.250M HNO3 is required to neuralize a solution prepared by dissolving 17.5g NaOH in 350mL of water?
A buffer solution is made by dissolving 0.45 moles of a weak acid (HA) and 0.33 moles of KOH into 800 mL of solution. What is the pH of this buffer? Ka = 5.9 × 10-6 for HA.
How many water molecules are in a block of ice containing 1.50 mol of water (H_2O)?
A metal, M, was converted to the chloride, MCl2. Then a solution of the chloride was treated with silver nitrate to give silver chloride crystals, which were filtered from the solution.
Aromatic Compounds :sample question, Both naphthalene and azulene have 10 pie electrons and are aromatic. Pentalene is apparently antiaromatic and is unstable even at -100 degrees C.
Write the balanced net ionic equation for the following dissolution reaction: Zn(OH)2 in aqueous NaOH
A calorimeter temperature increased by 0.45 0C after adding 30 joule OF ENERGY TO IT BY ELECTRICAL HEATING and the temperature increased by 7.3 0C when 0.10 grams of HCl is neutralize in the same calorimeter now determine the specific heat of neut..
calculate the mass of a sample of gold that occupies 5.0 X 10^-3 cm3 if the density of gold is 19.3 g/cm
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