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1. Draw the structure of the following compounds. Show stereochemistry.
SnCl3 -Ga2(CH3)4(OCH3)2(BH3)N(CH3) 3
2. Which one has a stronger hydrogen bonding HO-H...OH2 or HS-H....SH2 ("..." indicated the location of hydrogen bonding)? Why?
3. Using CH4, H2O, N2, and O2 as raw materials, write multi-step reactions for the preparation of HNO3. (Do not use the direct reaction between N2 and O2 because ir is not cost effective on an industrial scale).
4. Please complete the following reactions
RbCl(l)+ Ca (l) ----à
Cr+3 + Fe +3----à
The products of the combustion were 3.277 g of CO2(g) and 1.677 g of H2O(g). Insert subscripts below to appropriately display the empirical formula of the gasoline additive
Describe the preparation of 0.250 L of 50.0 mM lactate buffer, pH 4.5 using a 0.5 M solution of lactic acid and 0.5 M solution of sodium lactate. pka=3.9
There are two ways of utilizing hydrogen as fuel in automobiles - as the replacement of gasoline in internal combustion engine or in a fuel cell. Can you explain why a fuel cell is more efficient using the Second Law of Thermodynamics
how many grams of potassium permanagate are needed to discolor 1 gram of 2-pentene in basic solution.
In photography, unexposed silver bromide is removed from film by soaking the film in a solution of sodium thiosulfate, Na2S2O3. Silver ion forms a soluble complex with thiosulfate ion
Draw structural formula for allyl alcohol. Use stereo bonds ONLY if in your example you are asked to draw a particular stereochemistry.
For H3PO3, Ka1 = 1.0x10- 2and Ka2 = 2.6x10-7. Calculate a value for the [H2PO3] in a 0.500 molar solution of H3PO3
Calculate the change in chemical potential of an ideal gas when its pressure is increased isothermally from 1.8 atm to 29.5 atm at 40 C.
Calculate the molality of methanol in a solution prepared by dissolving 75.0 mL methanol, CH3OH (density = 0.791 g/mL), in 150 g ethanol.
A solution is created by adding 0.05 moles of H2CO3 (3.1 g, total mass) to 5-L of water, resulting in a pH of 4.2. Now, we add sodium hydroxide (NaOH, strong base) until the pH reaches 10. You can neglect any changes in volume. What is the alkalin..
Thyroxine, an important hormone that controls the rate of metabolism in the body, can be isolated from the thyroid gland. If 0.455 g of thyroxine is dissolved in 10.0g of benzene, the freezing point of the solution is 5.144 degrees celcius.
Chlorine(Cl2) is used as a germicide to kill microbes in swimming pools. if the product is Cl^-,was the elemental chlorine oxidized or reduced
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