Tuesday
April 21, 2015

Posts by Bobby


Total # Posts: 606

ph+chem#2
Hey, can you help me on this last question. I dont understand how I can figure it ouyt without any indicators or solutions. Please help! 13. Three solutions labelled A, B, and C are known to have pH values of 4.0, 6.5, and 8.0. Write an experimental design including diagnostic...
August 4, 2006

pH???+chem!
7. A few drops of bromothymol blue indicator are placed into 250 mL of 0.20 mol/L HCl(aq). A sample of 1.8 g of NaOH(s) is then dissolved into this solution. The final colour of the solution is predicted to be How can I do this one? What is the pH of the HCl solution? THen, ...
August 4, 2006

graphing!
can someone help me? okay so I am given this : (a) y= x-4 (b) y=2-x I have to graph this manually and find the intersection. okay so I know how to graphi it right with this formula: y=mx+b okay but is the slope how can you tell and what number is the y intercept i belive it ...
July 4, 2006

sturctural formula
how would i the sturctural formula look for this one: dimethyl-propane: my guess that it would be like so: CH3 l CH2 l C-CH2-CH3 l CH2 l CH3 Is this right? Please visit the following: http://images.google.com/images?hl=en&safe=off&as_qdr=all&sa=N&resnum=0&q=%20%...
June 13, 2006

complete and balnces theses reactions
how do i complete and balnces theses reactions???? CH3-CH2-CH3 (g) + Br2 (l) --> like how in the world????? do i do this? lol aint got a clue wish i would have listened at school now. Alkanes usually react with a halogen to form one of several halides. The simplest reaction...
June 13, 2006

carbon!
Why is that carbon can form an infinite number of molecules? http://web.jjay.cuny.edu/~acarpi/NSC/10-organic.htm http://www.scienceclarified.com/everyday/Real-Life-Chemistry-Vol-2/Carbon.html http://biology.clc.uc.edu/courses/bio104/carbon.htm
June 13, 2006

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