Chemistry
C6H6 + (CH3)3Cl -AlCl3---> C6H5(CH3)3 C6H5(CH3)3 ---- HNO3/H2SO4--> para-NO2 C6H5(CH3)3---- major ortho-NO2 C6H5(CH3)3---- minor
Chemistry
Quinine has a tertiary amine group so acts as base QN + H2O -----> QNH+ + OH- given pka is 8.52 -log ka=8.52 ka= 3*10^-09, for conjugate acid base pair at 25degrees Celsius kw= ka*kb therefore Kb= kw/ka = 10^-14/ 3*10^-09 = 3.4 *10^-06 from eqation kb=[QNH+][OH-]/[QN] QN + ...
Physics
Assume that a deposit of oil is located 2000 m directly below. Estimate the size of the deposit, assumed spherical.
college
i have free speech.my topic is have ever done anything that you wish you hadn't done?what happened and how the situation might have been different if you had acted or thought differently. really i dont know,how can i speak because i dont know about this.can you help me,can...
chem
the answer is not clear
university of the south Pacific
Is sodium chloride an Ionic bonding or covalent bonding?
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