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Would you expect benzene to be more reactive or less reactive than toluene toward electrophilic substitution? explain.
Identify the following compound made of H, N, and O described below. Write a Lewis structure that is consistent with the information given.
a chemist vaporrizd liquid compund and dermined its density. if the density of the vapor at 90c and 753 mmhg is 1.585
Predict any precipitates that are formed when the following solutions are mixed and give the net ionic equation. Ba(NO3)2 solution and KOH solution.
When hydrochloric acid reacts with magnesium metal, hydrogen gas and aqueous magnesium chloride are formed.
The Tl in a 9.76 g sample of rodenticide was oxidized to the trivalent state and treated with an unmeasured excess of Mg/EDTA solution. The reaction is Tl3+ +MgY2-> TlY- + Mg2+
the enthalpy of formation of compound x is -612 kjmol and the sole product of its combustion has a enthalpy of
What is the density of lead (in g/cm^3) if a rectangular bar measuring 0.500 cm in height, 1.55 cm in width, and 25.00 cm in length has a mass of 220.9 g?
What if any experimental evidence do you have that the equilibrium is affected by the addition of concentrated HCL? Explain Are your observation and explanation in A consistent with Le Chatelier's Principle? Explain
How much 1.0 mol/L HCL would you need to add to 1 L of an imaginary buffer of 0.10 mol/L to change the pH from 6.8 to 6.0. Neglect volumes and remember that HCL disassociates completely
The d-d transition in [Ti(H2O)6]+3(aq) produces an absorption maximum at 500 nm. What is the magnitude of ? for this complex in kJ/mol? HINT: E = h ? and c = ?
The pH of a solution of ammonia, NH3, is measured at equilibrium and found to be 11.48. Given that Kb for NH3 is 1.8 X 10?5, what was the initial (before equilibrium) concentration of NH3
the enthalpy change is 25.8 KJ. How many grams of H2 gas are produced? and d: How many KJ of heat are released when 50.9 g of CO gas reacts completely with H2 to form CH3 OH at constant pressure?
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