Posts by Neee
Total # Posts: 14

chemsitry
buffer calculate the ph of the .1m propanoic acid Ka 1.35e5 
Math
Where is f(x)=(sqrt(164^4))/sinx continuous? Evaluate lim x> pi/2 f(x) 
Math
Simplify: f(x)=sqrt (16x^4)/ sinx This is to evaluate a limit, but I don't know if I can simplify the above equation. Because I tried to get rid of the radical in the numerator but I ended up with a radical in the denominator. >< Help 
Maths
Solve the given equation: ln(x + 4) + ln(x + 2) = 2 ps  we aren't allowed calculators My ans: I got as far as ln [(x+4)(x+2)] = 2 ln (x^2+6x+8) = 2 And then I am lost, whatever I do ends up with no answer. I also rewrote the above so that it is e^2 = x^2+6x+8 But of ... 
Chemistry
Yes lol, z (together) and e (opposite), cis trans is limited to when there are many different substituted groups. But the problem I am have, is that I need to know which configuration is more stable from the ez? As the more stable compound exists in a greater quantity 
Chemistry
Which stereoisomer configuration would be more stable, the z configuration or the e configuration? I tried searching for this, but I only got answers for cis/trans instead of e/z. Can anyone help with it? ty 
Chemistry
In the reaction of a diene, can a strans conformation diene and a strans conformation dienophile react? I am having some problems finding the answer to this on the net or in my textbook. I know that a strans diene cannot react with a scis dienophile. But I am not sure what... 
Chemistry
What is the difference between regioselectivity and stereoselectivity? I was just reviewing and now I don't quite remember the difference, and I keep on thinking it's the same thing...and it's not 
Chemistry
Cmon 
Chem
What is the Oxidation state of each on the atoms in a methoxy group, and does it have an overall charge? I keep of thinking the overall charge is 3 but then again it combines with carbon so it should just have one more electron so 1. 
chemistry
Lol are you thelma? It seems as if you are not trying to solve the questions at all, attempt them...see what you think. (Lol I just hope you are not trying to get someone else to do your homework) Anyways...the answer is a single covalent bond. Ionic bond involves the transfer... 
Chemistry
c  Metal Those above are all the properties that distinguish a metal from a nonmetal...they are all properties of a metal. 
Chemistry
Activation The name gives the clue. Activate  make (something) active or operative. Also exothermic means heat releasing so endothermic means heat absorbing combustion is burning with oxygen 
chemistry
No the answer is b  a saturated solution. A supersaturated solution is when you increase the concentration of the solution beyond its saturation point.