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State the resonance structure of the most stable carbocation intermediate possible that results from step 2 of an electrophilicaromatic substitution reaction when tert-butylbenzeneencounters bromine in the presence of iron(III) bromide.
Water has a considerably higher boiling point and lower vapor pressure than other molecules of similar or larger molar mass. For example, dinitrogen (N2), methane (CH4), etc.
What you need to know about Problems, The Ksp of La(IO3)3 is 1.0×10-11. Using activities, what is the molar solubility of La(IO3)3 in a 0.050 M solution of NaNO3?
If the fluid inside a tree is about 0.1 M more concentrated in solute than the groundwater that bathes the roots, how high will a column of fluid rise in the tree at 26°C? Assume that the density of the fluid is 1.0 g/cm3. (The density of mer..
We conclude the reaction must be non-spontaneous regardless of temperature and becomes even more so at higher temperatures 2) we conclude the reaction must be spontaneous regardless of temperature and becomes even more so at lower temperatures
Write the net ionic equation for the reaction that takes place when lead (II) ion precipitates with chloride ion. Write the net ionic equation for the reaction that takes place when aqueous ammonia is added to mercury (I) chloride.
Write a series of nuclear equations to represent the bombardment of -27 with a neutron to form a product that then undergoes an alpha decay followed by a beta decay.
Predict the likely mode of decay for the following isotopes used as imaging agents in nuclear medicine (choose all likely modes od decay- can have multiple answers for each and may be used multiple times):
How many moles of sodium acetate must be added to 1.8 L of 0.25 M acetic acid to give a solution that has a pH equal to 4.68? Ignore the volume change due to the addition of sodium acetate.
a steel tank containing helium is heated to 555?c. if you could look into the tank and see the gas molecules what would
A backpacker wants to carry enough fuel to heat 2.9 kg of water from 27 degrees C to 100.0 degrees C. If the fuel he carries produces 36 kJ of heat per gram when it burns, how much fuel should he carry? (For the sake of simplicity, assume that the..
What is the PH after .15 mol of NaOH is added to .050 mol of propanic acid and ,080 M of sodium propanoate with a ka of 1.3x10^.5
How much heat energy, in kilojoules, is required to convert 74.0 g of ice at -18.0 C to water at 25.0 C ?
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