chemistry
I mean the head temp. is the higher temp., they called it like this in my university. anyway,this question in the dehydration of cyclohexanol. when we do elimination the heat temp. should be kept below 90 c, why?
chemistry
why is the head temperature kept below 90 c in the initial step of the dehydration reaction?
Calculus-PLZ HELP! =)
does the sum 3/(2^(n)-1) converge or diverge? n=1--->infinity
Calculus II
Is the series 1/(n(n+1)) convergent? n=2 to n=infinity
Calculus II
Does 3/(2^(n) +1) diverge or converge in an infinite sum?
Chemistry
Nvm figured it out
Chemistry
Why is the last step is convert to pH? We are trying to find the hydroxide-ion concentration?not the pH
Chemistry
what is the hydronium-ion concentration in a 0.35m solution of NaCO3? For carbonic acid, Ka1=4.2x10^-7 and Ka2=4.8x10^-11. (Kw=1.0x10^-14)
Chemistry
I don't press the E button i press the 10^x Button but when I divided the kw/Kb it gives me 2.083x10^-28
Chemistry
I plug in the numbers put it doesn't match any of the choices.... I get 4.81x10^-29 The choices are A)2.3x10^-35 B)6.4x10^-23 C)7.3x10^-16 D)48 E)491 Please help!!
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