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April 21, 2014

Search: math/chemistry

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statistics
At a certain college, 15% of the students receieved an A in their required math cousre, 10% receieved an A in their required chemistry course, and 5% receieved an A in both. A student is selected at random. a.) What is the probability that he received an A in either chemistry ...
Sunday, October 4, 2009 at 6:06pm by Sharon

statistics
At a certain college, 15% of the students received an A in their required math course, 10% receieved an A in their required chemistry course, and 5% received an A in both. A student is selected at random. a.) What is the probability that he received an A in either chemistry or...
Saturday, October 3, 2009 at 8:59am by Sharon

statistics
At a certain college, 15% of the students received an A in their required math course, 10% received an A in their required Chemistry course, 5% received an A in both. A student is selected at random. a.) What is the probability tha he receieved an A in either Chemistry or Math...
Friday, October 2, 2009 at 6:48pm by Sharon

chemistry
How do you make a venn diagram of the 6 branches of chemistry? (Inorganic chemistry, organic chemistry, biochemistry, nuclear chemistry, physical chemistry, and analytical chemistry) like where would they go in the 3 circles
Sunday, August 26, 2012 at 10:10pm by jake

Dr.Bob - Question
For a chemistry major, a good college chemistry curriculum should be consistent with recommendations of the American Chemistry Society (ACS). Here is one of them to look at: http://tars.rollins.edu/chemistry/Courses/ACS_Major.shtml If you do not have a chemistry major already ...
Saturday, June 27, 2009 at 6:04pm by GK

Math...For All Math Tutors
I have taught maths as part of undergraduate chemistry for many years. I currently teach chemistry (I am an organic chemist)which includes maths as part of general study skills for a UK university.
Friday, February 15, 2008 at 10:29am by Dr Russ

math
Emily surmises that the probability tht she will pass math or chemistry is .95, the probability of her passing math is .7, and the probability of passing both is .55. Find her estimate of the probability of passing chemistry?
Tuesday, November 22, 2011 at 11:34pm by Sam

Chemistry
(3.3cm^3)*(10^-6 m^3/1cm^3)=3.3 x10^-6 M^3 Not really chemistry, but math.
Thursday, January 24, 2013 at 1:14am by Devron

math
500 students sat for an examination in mathematics,physics and chemistry.45 passed all the three subject,60 passed mathematics and chemistry,70 passed physics and chemistry,50 passed mathematics and chemistry,10 passed in mathematics,80 passed in chemistry and 35 passed at ...
Sunday, November 13, 2011 at 3:23pm by damilola

chemistry
I think this is more a math than a chemistry question but the answer to two significant figures is 12 cm^2.
Thursday, August 29, 2013 at 1:14pm by DrBob222

Math
of 250 candidates writing a exam, 147 passed in math,150 pass in chemistry and 85 pass subjects B)calculate the number of students who pass i)pass math only ii)pass chemistry only iii)passed neither iv)pass only one subject
Monday, January 30, 2012 at 9:41pm by andrew

Chemistry
THANKS for showing your work. If you had shown your math work I could have checked the error. You must have made a math error. The chemistry is OK. And you need not solve the quadratic with either of them.
Sunday, March 17, 2013 at 9:33pm by DrBob222

Math
If you pass general chemistry, then you can take organic chemistry. You pass general chemistry. You can take organic chemistry. Let P = you pass general chemistry Let Q = you can take organic chemistry I came up with P - >Q P therefore Q But my set up is wrong, how do I ...
Friday, January 21, 2011 at 3:56pm by Madison

chemistry
No one person "invented" chemistry. Chemistry is an evolving science. Chemistry is conceptual.
Sunday, December 6, 2009 at 10:53am by DrBob222

math
how about making a Venn diagram using 2 intersecting circles. Place .55 in the intersection of the two. Prob of passing math is .7 , but you already have put .55 in the math circle, that leaves .15 to go in the non-overlapping part of math label the non-overlapping part of ...
Tuesday, November 22, 2011 at 11:34pm by Reiny

Chemistry not math
Please ask for Chemistry, not math, help.
Saturday, January 4, 2014 at 11:17am by Damon

chemistry
Not much chemistry in this. If you have a calculator, use it. If you don't, go to www.google.com and type in 2420*24 = and press enter. Google does math calculations.
Friday, January 8, 2010 at 10:53am by DrBob222

chemistry
There is no chemistry in the problem. It's all math and not very advanced math at that. How do you figure out the ?? in the equation: 36.0 x (75.0 g H2O/100 g H2O) = ?? You key in 36.0 on your calculator, multiply by 75.0 and divide by 100. That's all there is to it.
Sunday, March 1, 2009 at 10:09pm by DrBob222

set
of 250 candidates writing a exam, 147 passed in math,150 pass in chemistry and 85 pass subjects B)calculate the number of students who pass i)pass math only ii)pass chemistry only iii)passed neither iv)pass only one subject
Monday, January 30, 2012 at 8:45pm by Andrew

Chemistry
I think it's your math. I obtained the same equation as you and it looks ok to me. I went through the math and obtained two values for x of 0.0631 (which can't be right since 0.110-2x gives a negative number) and 0.0471. That value plugged back into Kp expression gives Kp = 5....
Sunday, March 16, 2014 at 3:42pm by DrBob222

math
A school has 63 students studying Physics, Chemistry and Biology. 33 study Physics, 25 Chemistry and 26 Biology. 10 study Physics and Chemistry, 9 study Biology and Chemistry while 8 study both Physics and Biology. Equal numbers study all three subjects as those who learn none...
Monday, December 24, 2012 at 9:54pm by ifi

Statistics- Math
One student scored 54 on a math test for which the mean score was 50.5 and the standard deviation was 3.2. Another student scored 80 on a chemistry test for which the mean score was 75.2 and the standard deviation was 5.2. Which student (math or chemistry) had a "better" score...
Friday, February 17, 2012 at 12:00pm by Kerrin

chemistry f/u
This is pretty basic algebra. Tf[17.75*Ceth +31.6*Cwater] -17.7(Ceth)(7.7) - 31`.6*Cwat*27.1=0 check that. then add the last two terms to both sides. Then, divide both sides by the quantity in []. If you really can't do this level of algebra, you need a math tutor now, or ...
Sunday, September 4, 2011 at 4:50pm by bobpursley

Chemistry
Is this class beginning chemistry? I did not think freshman chemistry would be discussing hydrogen/metal over potential.
Thursday, November 8, 2012 at 10:23pm by DrBob222

Chemistry
You're cheating on an assignment due for the class Chemistry 1012, your chemistry professor will be notified.
Sunday, February 27, 2011 at 6:19pm by UNBF

AP Chemistry
I am sure if a chemistry teacher comes by you will be helped. I am a physicist and can only answer really easy chemistry questions, sorry.
Friday, January 24, 2014 at 6:21pm by Damon

Chemistry?
About chemistry? Our chemistry tutors aren't online right now.
Friday, July 29, 2011 at 1:18pm by Writeacher

chemistry
I have a chemistry project where I need to make an object move using my knowledge of chemistry. The object os a small ball teh size of a large marble. It must be moved using chemistry and NOT physics (ie slope wind etc). I am 15 and in grade 11.
Thursday, April 8, 2010 at 10:13am by Didier

chemistry/stiochiometry
could someone please answer my chemistry/stoichiometry questions below both "anonymous one just chemistry on todays date
Wednesday, March 16, 2011 at 5:22pm by "anonymous"

Chemistry
The first thing you need to do is take care in the correct spelling of CHEMISTRY. How much chemistry do you need to learn in 3 weeks? High school and college classes keep students busy for at least a year. Some people spend years studying chemistry and earn doctoral degrees in...
Tuesday, November 25, 2008 at 4:35pm by Ms. Sue

ACT Math
Of the 60 students in a school, 24 are currently studying chemistry. Exactly 16 of the girls in the school are not currently studying chemistry. The number of girls in the school is 33. How many boys are currently studying chemistry? Correct answer is 17. How did they get that...
Tuesday, August 27, 2013 at 1:59pm by Java

MATH
Why are you calling chemistry questions math?
Friday, December 7, 2012 at 1:18am by drwls

Chemistry
haha I'm guessing your studying off the old chemistry multiple choice exam for tommorow's chemistry exam at ryerson?
Thursday, December 13, 2012 at 2:35am by Anonymous

Chemistry
Our professor just told us that the final exam will be the ACS exam, we are taking general Chemistry II. What is the best way to study for ir? Is the preparing for ACS general chemistry study guide good? If we are taking general Chemistry II do we have to study Chemistry I again?
Thursday, April 19, 2012 at 8:26pm by Mima

Chemistry
Our professor just told us that the final exam will be the ACS exam, we are taking general Chemistry II. What is the best way to study for ir? Is the preparing for ACS general chemistry study guide good? If we are taking general Chemistry II do we have to study Chemistry I again?
Thursday, April 19, 2012 at 8:27pm by Mima

Chemistry
Correction: (b) If you divide grams by moles you get grams/mole, the molar mass. Comment: No web page makes a good substitute for your chemistry class and your chemistry textbook.
Monday, September 15, 2008 at 6:14pm by GK

DrBob222 please read
Would you recommend me to study for pre-general chemistry first before taking general chemistry? Because I do not remember anything from my chemistry class at all.
Monday, October 11, 2010 at 9:59pm by Advice please

Chemistry (kind of)
Okay so this is actually for an english assignment where we have to report on a problem in our field....mine happens to be Chemistry so I was wondering what kind of problems or disputes can be caused in a chemistry lab...
Friday, February 6, 2009 at 12:46pm by Stefanie

Chemistry
Lauren, I showed you how to solve both parts of this problem. The only thing I didn't do was to do the math and I'm not going to do the math for you. I will help you through it if you are explicit about what you don't understand. And note that you are still spelling celsius ...
Thursday, May 12, 2011 at 12:28am by DrBob222

Math
At Small Town High there are 100 students, each of whom takes at least one of biology, chemistry, or physics. There are 50 students in biology, 60 in chemistry, and 70 in physics. If 24 students are enrolled in exactly two of these classes, how many students are in all three?
Sunday, November 7, 2010 at 3:31pm by kyle

Chemistry
The population of San Francisco is 750,000 in an area of 49 square miles. What is the population density in San Francisco? Express your answer in people per acre. ( 1mi(squared) = 640 acres ) 49 sq mi x (640 acres/1 sq mi) =?? acres. (Note that sq mi cancels leaving acres.) ...
Wednesday, September 13, 2006 at 6:25pm by Jamie

Chemistry
In inorganic chemistry, compounds with OH generally are bases (NaOH, KOH, Al(OH)3, etc). In organic chemistry, an OH attached to a C is an alcohol. -COOH is an acid. C-O-C is an ether. RCOOH = acids ROR ethers RCOOR = esters RNH2 amines RCONH2 amides.
Sunday, June 7, 2009 at 6:21pm by DrBob222

chemistry
There is a lot of chemistry in meteorology but that's only part of the story. There are many other aspects of meteorology than chemistry.
Thursday, March 12, 2009 at 4:18pm by DrBob222

Chemistry
CH3OH(l) + 1.5 O2(g) > CO2(g) + 2 H2O(l) You get rid of fractions in chemistry the same as in math. If it's a 1/2, just multiply by 2. 2CH3OH + 3O2 ==> 2CO2 + 4H2O For 1/3 multiply by 3.For 1/4 multiply by 4, etc. MOST times we need whole numbers to balance an equation. ...
Thursday, July 2, 2009 at 12:46am by DrBob222

Chemistry/math
why is it to the -1?
Wednesday, April 15, 2009 at 4:28pm by Angie

Chemistry/math
ok thanks
Wednesday, April 15, 2009 at 4:28pm by Angie

Chemistry,Math
You're welcome.
Monday, October 28, 2013 at 10:09pm by DrBob222

Chemistry
do your math
Friday, March 25, 2011 at 3:49pm by your teacher

Chemistry
I just realised I made the stupidest mistake ever. I guess this is what happens when you try to do chemistry while sick. The last bit of math doesn't make sense; it should be 3.82 = (460.24)(Tf-21.4C) 3.82 = Tf460.24 - 9849.136 -Tf460.24 = -9849.136 - 3.82 Tf = -9852.956/-460...
Sunday, February 10, 2013 at 6:55pm by A Canadian

Chemistry
I'm having a hard time getting started studying for my chemistry midterm. i'm kind of overwhelmed. my teacher gave me a brief study guide, but where would be the best place to start? are notecards effective for studying chemistry?
Saturday, January 12, 2008 at 9:20pm by Catie

chemistry/math
It looks ok to me.
Monday, September 29, 2008 at 10:05pm by DrBob222

Chemistry/math
what does k stand for?
Wednesday, April 15, 2009 at 4:28pm by Angie

Chemistry/math
0.0231?
Wednesday, April 15, 2009 at 4:28pm by Angie

Chemistry/Math
Where does the 5 come from?
Tuesday, September 4, 2012 at 3:10pm by Angie

chemistry
I don't understand the math to this !!!
Sunday, January 29, 2012 at 11:38pm by kassandra

Chemistry/lab math
Thank you!
Wednesday, August 7, 2013 at 9:36pm by Anonymous

Math? Physics?? Chemistry??
... and you don't know??
Thursday, August 15, 2013 at 3:56pm by Writeacher

Chemistry,Math
Thank you tutors!!
Monday, October 28, 2013 at 10:09pm by Anonymous

Chemistry
In polymer chemistry, it is often said that obtaining a polymer with certain desired physical properties is often more a problem of engineering than of chemistry. Why is this the case? bgfhftghgfgfnhgf
Friday, September 29, 2006 at 9:23pm by Lindz

Chemistry
In polymer chemistry, it is often said that obtaining a polymer with certain desired physical properties is often more a problem of engineering than of chemistry. Why is this the case?
Thursday, September 28, 2006 at 8:43pm by Lindz

chemistry
Qualitative chemistry tells you WHAT is in the sample. Quantitative chemistry tells you HOW MUCH is there. Most people, I think, use a qualitative measurement to mean that it is approximate.
Thursday, September 10, 2009 at 4:55pm by DrBob222

ap
You need to do two things. 1. You need to write chemistry for the subject and not ap. ap could be chemistry, of course, but it could be history, math, or a variety of others.' 2. You need to give us some idea of what you think the answer is and why. We try very hard to help ...
Friday, October 5, 2012 at 6:49pm by DrBob222

chemistry/math
I am incorrect in this scenario.
Monday, September 29, 2008 at 10:05pm by Joe

College Chemistry/Lab Math
Thanks for the help!
Sunday, March 17, 2013 at 1:46pm by James

Math
whoops sorry this is chemistry
Friday, June 21, 2013 at 9:26am by Kristen

Chemistry/lab math
Thank you again!
Wednesday, August 7, 2013 at 10:06pm by Anonymous

Chemistry/Math
so is my answer correct?
Wednesday, January 8, 2014 at 9:32pm by Jessica

general
Hundreds of sites are available but it depends upon what in chemistry you need help with. The easiest thing to do is to go to Google and type in the subject (not chemistry but the area of chemistry). For example, Le Chatelier's principle if you need help with that or gas laws ...
Saturday, October 26, 2013 at 10:42pm by DrBob222

Chemistry
Hi, I have to take chemistry placement test for college this week. Does anyone here have advice for studying to prepare for the test? I took chemistry in high school 2 years ago so I don't remember anything.
Monday, October 11, 2010 at 9:59pm by Advice please

chemistry
You are in great trouble. You are not taking notes, nor or reading the text, and yet you are taking chemistry. Look up Molarity. You will fail chemistry if you do not know about Molarity, M. M=molessolute/literssolution=3.51/1.2= you do the division.
Monday, March 5, 2012 at 8:44am by bobpursley

chemistry
No. Organic chemistry is over run with resonance structures. Most polyatomic ions in inorganic chemistry as well as many compounds have resonance structures.
Sunday, November 11, 2007 at 1:19pm by DrBob222

Physical Science
Physics + Chemistry = Physical Chemistry Biology + Chemistry = Biochemistry Organic Chemistry+Geology + Chemistry = Geochemistry Astronomy + Physics = Astrophysics Biology + Geology = Paleontology Geology + Astronomy = Astrogeology Biology + Astronomy + Physics = Astronautics
Friday, June 15, 2012 at 6:48am by Elena

chemistry 1
Next step, multiply both sides by (.01-x) .012(.01-x)=.01x+x^2 gather terms, put in standard binomial form, use the quadratic equation, and solve for x. Your question actually bothers me. You are asking an algebra 1 question in order to solve a very complicated chemistry ...
Wednesday, March 26, 2008 at 10:04am by bobpursley

Dr.Bob - Question
I have just 1 year left before I graduate with another degree that is science related. It is not in chemistry but I have taken almost all of the chemistry classes that are usually taken by a chemistry major. (excluding inorganic and other more specific chemistry classes)There ...
Saturday, June 27, 2009 at 6:04pm by ~christina~

chemistry
I didn't check the math, but the procedure is correct.
Friday, October 3, 2008 at 12:17am by bobpursley

chemistry/math
Yes, oddly worded question.
Wednesday, October 15, 2008 at 8:22pm by Dr Russ

Chemistry
I didn't go through the math but this looks ok to me.
Tuesday, March 2, 2010 at 2:22am by DrBob222

chemistry
I tried math help, but no one has responded :(
Thursday, July 8, 2010 at 7:38pm by Sara

Chemistry (Math)
See your post above.
Sunday, February 27, 2011 at 12:05pm by DrBob222

chemistry/math problem
You are correct it is 208
Tuesday, September 13, 2011 at 5:10pm by Nichele

Chemistry
That looks ok to me although I didn't check the math.
Monday, October 31, 2011 at 7:19pm by DrBob222

chemistry
I didn't check the math but the procedure is correct.
Thursday, November 3, 2011 at 4:37pm by DrBob222

chemistry/math
nevermind! i converted wrong!
Sunday, August 19, 2012 at 7:58pm by Hannah

Chemistry/Math
When I calculate what you did, I don't get the same answer.
Tuesday, September 4, 2012 at 3:10pm by Angie

Chemistry, not math
wrong subject title
Wednesday, October 24, 2012 at 11:03pm by Reiny

Math,Physics,Chemistry
and? Is there a question here?
Thursday, November 1, 2012 at 7:48pm by bobpursley

Chemistry/lab math
all correct.
Tuesday, August 20, 2013 at 9:40pm by bobpursley

Chemistry/Math
Hmmmm. Did you read my answer?
Wednesday, January 8, 2014 at 9:32pm by bobpursley

ap chemistry????
None of our tutors is expert in "ap." If this is a chemistry question, you should have indicated that so that a chemistry expert could help you.
Monday, October 1, 2012 at 8:30pm by Ms. Sue

chemistry
No, it is (0.790-2x)^2/(0.080+x)(0.060+x) I didn't write the -2x in the chart but I should have done so. As to one of the numbers "going away" because it's so small, I don't know how you know that until you work the problem.And that means you solve this problem the hard way, ...
Wednesday, December 15, 2010 at 9:40pm by DrBob222

Chemistry
hello, I am in General, Organic Chemistry now and I havent had chemistry since 10th grade. (im 21 now) I barely remembered anything but I would strongly suggest going over conversions such as millimeters-inches and also learning things like the lewis structure. We are ...
Monday, October 11, 2010 at 9:59pm by nicole

Chemistry
Was there math involved in this or do you just look at the subscripts?
Saturday, October 20, 2007 at 5:37pm by Marty

chemistry
1000mm=1m 1000m=1km do the math
Tuesday, August 26, 2008 at 10:05pm by Anonymous

chemistry/math
have u heard of the 7 steps its 640000000milli
Wednesday, September 17, 2008 at 5:00pm by Brandon

CHEMISTRY..please help..thanks
K=[CO2]^2/([CO}^2 * [O2]^2 ) Is there a reason you can't do the math?
Saturday, November 13, 2010 at 1:38am by bobpursley

Math/Chemistry
Thanks for the help, This was a 8th grade question by the way.
Monday, August 22, 2011 at 11:50pm by Chaney

Chemistry/Math
(6000)(1/86400)*(1/3)sqrt(5/2Pi)
Tuesday, September 4, 2012 at 3:10pm by Angie

A.P Chemistry
go back to school and relearn math
Monday, October 23, 2006 at 4:07am by Anonymous

Stoichiometry
Thank you for using the Jiskha Homework Help Forum. Here are some tutorials: 1. http://www.nauticus.org/chemistry/chemstoichiometry.html 2. (Broken Link Removed) 3. (Part II of #2): (Broken Link Removed) 4. (a math problem worked out): http://chemistry.about.com/od/...
Thursday, July 10, 2008 at 1:41am by SraJMcGin

essay cont. to Mrs. Sue
on teaching students on whats written in books. Omit the second "on." colleges do offer classes and variety of workshops Add "a" before "variety." classes are not required to be taken for graduation Omit "to be taken." Classes like Chemistry, Math, and English are required to...
Tuesday, November 27, 2007 at 3:20am by Ms. Sue

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