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Draw thw active site of an enzyme that contains a macrocycle coordinated to a transition metal. Explain the function of the enzyme and the mechanism of the reaction
How many lone pairs of electrons are there in a molecule of crotononitrile?
Identify the largest heat of combustion, small heat of combustion and highest boiling point for: heptane(i), 3-methylhexane(ii), nonane(iii)
A rigid vessel contains 10 kg of steam. the steam is initially at 10 bar and 300 C. After a period of time the pressure in the vessel is reduced to 1 bar due to heat transfer with the surroundings.
The reaction 2NO2(g)-----2NO(g)+O2(g) was studied at 383dgree c and the following data was obtained?
Magnesium hydroxide, the active ingredient in milk of magnesia neutralizes stomach acid , primarily HCL, according to the reaction: Mg (OH)2 (aq) + 2 HCL(aq) ---> 2 H2 O (l) + Mg(OH)2(aq).
What is the FORMULA for the limiting reagent? What is the maximum amount of potassium carbonate that can be formed in grams?
If you combine equal volumes of the following solutions, which combinations will result in the desired buffer? Why are the answers are 0.20 M CH3CO2H + 0.10 M NaOH and 0.20 M Na(CH3CO2) + 0.10 M HCl
How many grams of NH4Cl must be added to 424 mL of a 0.69 M solution of NH3 to prepare a pH = 9.00 buffer.
How many moles of N2O3 are needed so that you have 2.55 x 1024 oxygen atoms.
A set of two gas bulbs, with volumes of 500 mL and 300 mL, are connected by a closed stopcock. The 500 mL bulb contains 450 torr of Ne gas, and the 300 mL bulb contains 150 torr of Cl2 gas
In dilute solution the carbonyl absorption band of II occurs at 1702/cm. Explain this observation. stretching vibration in carboxylic acids is heavily mixed
Consider the reaction 4KO2(s) + 2CO2(g)->2K2CO3(s) + 3O2(g) . How much KO2 is needed to react with 75.0 L of carbon dioxide at STP?
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