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What is the freezing point of a solution prepared by dissolving 39g of benzene (C6H6) in 500g of cyclohexane. Fp for cyclohexane is 6.6 C Kf=20.0 C/m.
The pKb values for the dibasic base B are pKb1 = 2.1 and pKb2 = 7.8. Calculate the pH at each of the following points in the titration of 50.0 mL of a 0.60 M B(aq) with 0.60 M HCl(aq).
Using graphical techniques, calculate the distribution (i.e., the fraction) of chlorendic acid ( in uncharged, mono-anionic and di-anionic forms) at pH 3.5,5.0, and 7.5.
What effect on the value of Ca(OH)2's Ksp (6.5x10^-6 ) would sucking up some suspended calcium hydroxide solid have. Would the Ksp value be higher or lower than the normal value. Why
they are stable molecules with normal bonds and are frequently isolated. d. all reactions involve reaction intermediates, but not all have activated complexes. e. they are intermediate structures which have characteristics of both reactants and pr..
How many moles of water will be formed from 0.2 mole of CH4 reacting with enough O2. In this reaction CH4+2O2--->CO2+2H2O
even with a drying tube leaving phenylmagnesium bromide exposed to air will eventually lead to its decomposition. why?
The reaction between nitric oxide (NO) and hydrogen is thought to proceed via the following mechanism. Do not make any assumptions about which step is rate determining
The major monochrominated product which results when ethylcyclohexene is subjected to free rdical bromination is one of the following. chose your answer from the list provided.
Draw the major organic compound when (2R,3S)-2-bromo-3-methylpentane reacts with the nucleophile CH3CH2O-
An aqueous solution containing 7.29 g of an optically pure compound was diluted to 500.0 mL with water and placed in a polarimeter tube 15.0 cm long
A calorimeter contains 17.0 of water at 12.5 degrees celsius . When 2.10 of (a substance with a molar mass of 80.0 g/mol) is added, it dissolves via the reaction and the temperature of the solution increases to 28.5 degrees. Calculate the enthalpy..
What mass of this substance must evaporate in order to freeze 150g of water initially at 15C? (The heat of fusion of water is 334J/g the specific heat of water is 4.18J/g*K.)
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