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Show how you would synthesize ethyl 2-benzyl-3-phenylpropenoate from benzaldehyde, ethyl acetate and benzyl bromide. (hint: generate lithium enolate first!) You may use any other reagents you wish.
Air bags in automobiles inflate when sodium azide, NaN3, rapidly decomposses to its component elements: 2NaN3(s)-----2Na(s)+3N2(g). a)how many moles of N2 are formed by the decomposition of 2.50 moles of NaN3
The density of magnesium oxide is 3.58 g /cm3. Given that the radius of the O2- ion is about 140 pm in most oxides, calculate the radius of Mg2+, in pm. Your solution should include a sketch one face of the unit cell of MgO to show how the edge le..
There is an alternative procedure that uses K2CO3 instead of NaOEt; why can NaOEt or K2CO3 be used for the phenacetin synthesis
What net ionic equations for the precipitation reaction or reactions that occur. What are the spectator ions in the solution
How do you tell whether a solution is basic, acidic or neutral just by looking at the formula? Like KCl. I need to know how to figure out whether it's neutral, basic or acidic and have no clue how this is done.
calculate the heat in joules released by the dissolving salt. Assume that the specific heat of the solution is the same as thar of pure water(4.184J/g- celcius) and that the calorimeter is perfect.
Which solution will have the lowest boiling point?
What is the longest wavelength (in nm) that can dissociate a molecule of H-I? in nm.
What is the rate of the above reaction? What is the closest numerical value of K for the above reaction? What are the units for the rate constant for the reaction?
What is the de Broglie wavelength in cm, of a 12.7 g hummingbird flying at 1.15 multiplied by 102 mph? (1 mile = 1.61 km.)
What mass of this substance must evaporate in order to freeze 230 of water initially at 24? (The heat of fusion of water is 334 the specific heat of water is 4.18 .)
The density of air at ordinary atmospheric pressure and 25 0C is 1.19 g/L. What is the mass of air, in kg, in a room that measures 12.5 ft by 15.5 ft by 8.0 ft?
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