Glad I still kept my chemistry books and notes. Ok,

Specific heat is the number of calories of heat needed to raise the temperature of 1 gram of the substance 1 degree Celsius.

Knowing the specific heat of the water or the aqueous solution along with the total number of grams of solution and the temperature increase, enables you to calculate the heat released during the reaction.

So if 0.050 mol of hydrochloric acid (HCl) is mixed with 0.050 mol of sodium hydroxide (NaOH) in a "coffee cup" calorimeter, the temperature of 1.00 X 10 to the second power grams of the resulting solution increases from 25.0 C to 31.5 C. If the specific heat of the solution is 1.00 cal/g H2O C, calculate the quanitity of energy involved in the reaction.

Answer is 31.5 C  -  25.0 C = 6.5 Celius

Now take the answer and plug it into the next part of the equation 1.00 X 10 to the second power g solution X 6.5 C X 1.00 cal

                                                                                                                                                                                                                g solution C  = 6.5 X 10 to the second power cal or 0.65 kcal of heat energy was released by the acid-base reaction to the surroundings, the solution; the reaction is exothermic.

( the g solution and celius (C) cancels itself out with the other side of the equation leaving  calories.)

There is also a line defining the equation between 1.00 cal and g solution C.

I hope that helps, and not confuse you more.

Chemistry.... just starting 1st yr of prequets and that just darn right scares me.

Thanks mramsey, what I wasn't doing was subtracting the two temps.  Duh!!  Thanks for your help and all of your input.  Chemistry is really hard.  We are doing mole conversions right now with some stoichiometry (now if that word doesn't scare you).  I just got that figured out two days before the test.  It is very hard.  I ask my teacher questions, but after asking him 5 times on the same thing and still being confused, there is something definately wrong there.  My school just got the tutor this past week and I have used her already, but now there is only 31/2 weeks left of school.  But better late than never I suppose. 

Sinimin, yeah, I looked at that book to at Barnes and Noble.  It gave some good info on chemistry itself, but the math wasn't as helpful to me.  Since I have had some chemistry in Biology it has helped me with the basics and concepts, but it's just the darn math that is kicking my butt.  I have used some videos on youtube. 

Mramsey, what do you use your chem book for now?  I am keeping all my books just for that very purpose.  I did use some chemistry in my biology class and I am sure I will be for my other science classes since they say chemistry is the basis for all science. 

lizbaby75tn says ...

Thanks mramsey, what I wasn't doing was subtracting the two temps.  Duh!!  Thanks for your help and all of your input.  Chemistry is really hard.  We are doing mole conversions right now with some stoichiometry (now if that word doesn't scare you).  I just got that figured out two days before the test.  It is very hard.  I ask my teacher questions, but after asking him 5 times on the same thing and still being confused, there is something definately wrong there.  My school just got the tutor this past week and I have used her already, but now there is only 31/2 weeks left of school.  But better late than never I suppose. 

Sinimin, yeah, I looked at that book to at Barnes and Noble.  It gave some good info on chemistry itself, but the math wasn't as helpful to me.  Since I have had some chemistry in Biology it has helped me with the basics and concepts, but it's just the darn math that is kicking my butt.  I have used some videos on youtube. 

Mramsey, what do you use your chem book for now?  I am keeping all my books just for that very purpose.  I did use some chemistry in my biology class and I am sure I will be for my other science classes since they say chemistry is the basis for all science. 

Use it for stuff like this. Remembering how to do conversions and just because I am a terrible packrat!   One suggestion when asking questions to the teacher is have him write it out on the board step by step, maybe that way you can see what you may be missing and it may make him slow down a bit. Good luck!

lizbaby75tn says ...

I am actually getting this stuff now.  Now that the class is almost over, but better late then never.  I do not recommend taking Chemistry in the summer, however, it depends on the teacher.  It just is too fast and it's just not enough time to understand anything.  But with the right teacher it may be different.  A girl in my class is still confused about the first few chapters so she is really lost.  She is just hoping she passes it, but she isnt making any real effort.  Can't be a nurse if you don't put effort into your classes. 

lol. this is funy. i really need some help to.  my class is also nearing the end. next week is my last week and i can realy use some halp for my final. i have passed all my exams thus far but if i screw up on the final i have to repeat the class... so i will be asking for some help in a few hours.

Main thing I can tell all that are taking chemistry is to work the problems at the end of the chapters and if you can get a hold of the solutions manual for your chemistry book, that is really helpful because it shows the problems from the book and how to break them down. It really helps when you keep making the same mistake and have'nt figured it out yet! (Gee, I wonder who has done that?   ) Really work on it because for the ones that will be going for their bachelors, you will have to take organic chemistry. More interesting, but the math is from this portion. Good luck to all and holler if you need help! Going camping tomorrow and will be back on line Thursday night or Friday.

OMG..........I'm so glad all that is over. I wasn't a FAN of chemistry. 

Your professor will MAKE or BREAK you. I had a decent guy so that helped a lot.

Good luck to you and to all the pre nursing students that are yet to take chemistry. Don't let it take over you.

I just got my grade for Chemistry.  I got a B+.  I am a pretty good teacher!!  I am still frustrated that I could have done better, but it is better than failing it.  Thanks for all the help!!

sinimin says ...

lizbaby75tn says ...

I just got my grade for Chemistry.  I got a B+.  I am a pretty good teacher!!  I am still frustrated that I could have done better, but it is better than failing it.  Thanks for all the help!!

Dang... that's awesome.  I just started Chemistry this week.    BTW - my teacher this time seems way more approachable   and also tries to make Chemistry fun.  Wish me luck.  Cheers! 

Good luck hun. Study a lot. Just com[pleted Chem this summer!

sinimin says ...

lizbaby75tn says ...

I just got my grade for Chemistry.  I got a B+.  I am a pretty good teacher!!  I am still frustrated that I could have done better, but it is better than failing it.  Thanks for all the help!!

Dang... that's awesome.  I just started Chemistry this week.    BTW - my teacher this time seems way more approachable   and also tries to make Chemistry fun.  Wish me luck.  Cheers! 

That's great that you may have a better teacher.  I guess they really are out there.  Good luck. 

mramsey40 says ...

Congratulations Liz! You see, your a chem geek after all and just think, now you can get on to the really hard stuff now!   

Thanks mramsey!  I wouldn't say a chem geek.  I don't ever want to see it again.  LOL!  Yeah onto the hard stuff, I am taking A&P this fall, but I am actually looking forward to it since the teacher is awesome.  The nursing program will be much harder than anything in my prereq's.  But I embrace that challenge!!

That's great mramsey.  Good luck to you.  Let us know how it goes. 

How is everyone doing in Chem? I have my mid-term next week. Tomorrow we start on Acids and Bases.

It is hard, but if I could do it anyone can.  I am horrible at math, but I taught myself the math.  I am so proud of myself for getting through it.  I used youtube and some university websites to help me out with the math.  Also hit up lunarcaustic.  He was a great help!

Chemistry wasn't too bad for me. We needed a C+ to pass. If I remember right, I got a B. When you get into the nursing classes you'll learn a lot more about acids and bases.  If you think chemistry is hard...............you ain't seem nothing yet. LOL

Good luck everyone.