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Provide the structure of the ylide needed to prepare 3-ethyl-3-heptene from 3-pentanone using a wittig reaction
The solubility product of Mg (OH)2 is 1.2x10-11. Explain what minimum OH- concentration must be attained (for example, by adding NaOH) to make theMg2+ concentration in a solution of Mg(NO3)2 less than 1.0 x10-10M
The concentration of Mg2+ in seawater is 0.052 M. At what pH will 72% of the Mg2 be precipitated as the hydroxide salt? [Ksp for Mg(OH)2 = 8.9 multiplied by 10-12.]
what is the pressure in atmospheres in a container of gas connected to a mercury-filled open-end manometer if the level
The trend in second ionization energy for the elements from lithium to fluorine is not a smooth one. Predict which of these elements has the highest second ionization energy and which has the lowest and explain.
Define if we assume that the voltage declines linearly as current are withdrawn, educated guess the total maximum electrical work the battery could carry out during discharge
Stricly speaking why is it incorrect to speak of a melting point. What effect would incomplete drying of a sample have on a melting point
Problem- Consider the combustion reaction between 28.0mL of liquid methanol (density=0.850g/mL) and 14.0L of oxygen gas measured at STP. The products of the reaction are CO2(g) and H2O(g). Calculate the volume of liquid H2O formed if the reaction go..
What is the major, neutral organic product when the following goes under an SN1 reaction: 2-bromo-1-methylpentane reacts with -OH (hydroxide ion)
Create a MO diagram for H2. Include in this diagram the molecular electron configuration and the bond order and where the Homo(-) Lumo Homo, Lumo (+) is next to the energy level on the diagram.
Suppose that in procedure to separate benzoic acid you mistakenly added 20 mL of aqueous NaHCO3 at once (instead of adding to portions of 10 mL). How would it affect the recovery of benzoic acid and why
What is the molecular weight of acetic acid that will form 2 moles of CO2 assuming complete combustion.
calculate the ph of a solution formed by mixing 250.0 ml of 0.15 m nh4cl with 100.0 ml of 0.20 m nh3. the kb for nh3 is
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