April 19, 2014

Search: Chemistry(I'm sooo confused here!)

Number of results: 140,372

Chemistry(I'm sooo confused here!)
Bob I still can't get 182! 1/L=1.097 x 10^7 x(1/1^2-1/2^2) so 1/L=1.097 x 10^7x(1-0.25) so 1/L=1.097 x 10^7 x0.75 1/L=8227500 L=1.22 x 10^-7 m or L=122 nm
Thursday, November 4, 2010 at 11:22am by Dr Russ

I am sooo confused on how to solve this problem, can anyone help me understand? calculate the pH of 0.10 M HCI solution?
Thursday, October 1, 2009 at 1:33pm by Jessica

Math-approximation with fractions:7th grade math
Okay im sooo confused NONE of these answers are helping me ! Im doing Math approximations too and here 1 of my problems:15/56 and 8/35 it says use appoximations to get your answer!
Sunday, November 19, 2006 at 10:05pm by Marie

is the answer 1/20 if not I am sooo confused.
Monday, September 17, 2012 at 6:39pm by dad pulling out his hair

Tuesday, February 12, 2008 at 6:33pm by Mackenzie

Chemistry(I'm sooo confused here!)
The Rydberg equation, with n1=1, predicts an ultraviolet series of spectral lines of atomic hydrogen. Which of the following wavelengths is not predicted by the equation: 1/ = (1.097 x 10(7) m - 1) x (1/n1(2)-1/n2(2) a)182 nm b)103 nm c)97 nm d) 95 nm e) 91 nm I know i posted...
Thursday, November 4, 2010 at 11:22am by lavonne

college algebra
Solve the following inequality. x^3+9x^2-108 less or equal to 0. Then write your solution in interval notation. I am sooo confused and do not have any idea how to do this. Can someone please show me step by step please??? Thanks in advance. Someone who is confused.
Tuesday, December 25, 2012 at 6:27am by allison-please help!!!

Chemistry(I'm sooo confused here!)
103 nm is from n1=1 and n2=3 98 nm is from n1=1 and n2=4 95 nm is from n1=1 and n2=5 I can't get 182 nm. The limiting value for n1=1 and n2=infinity is 10^9/R = 91.5 nm so the wavelength cannot be smaller than this value. So my choices are a) and e). c) is also not possible as...
Thursday, November 4, 2010 at 11:22am by Dr Russ

Chemistry(I'm sooo confused here!)
182.3 comes from 1 and 2(close to 182) 102.55 comes from 1 and 3(close to 103) 97.23 comes from 1 and 4(close to 97) 94.95 comes from 1 and 5(close to 95) 93.76 comes from 1 and 6(not close to 91) If you had shown your work we could have found the error. You DO need to learn ...
Thursday, November 4, 2010 at 11:22am by DrBob222

i also have a math test tomorrow and i get sooo confused with irregular shapes in geometry
Thursday, March 29, 2012 at 5:28pm by Sheil

I'm still confused... I know that: P=1.1 atm V=2.00 L n=? R= I think .0821 and T= ? I have no idea how to change 15.0g to moles, since I do not know what the element is to look at the atomic mass--I know that one mole is avagadro's number, but I'm still really not sure what to...
Sunday, January 3, 2010 at 12:05pm by coug--confused

First, you omitted the units on the 9.03 WHAT in a 0.8112 WHAT container. I'm confused because you are confused. There is nothing here that you need an idea about. You have a and b, R, T, and n. Solve for P by van d equation, then use the usual PV = nRT and solve for P. Then ...
Saturday, January 14, 2012 at 5:46pm by DrBob222

thanks sooo much
Monday, April 7, 2008 at 12:24pm by david

Thank You SOOO much!
Tuesday, September 30, 2008 at 9:29pm by Trevor

thank u sooo much!
Tuesday, October 7, 2008 at 6:53pm by eao

thank you sooo much
Thursday, July 2, 2009 at 12:46am by Jason

You are SOOO right.
Thursday, May 6, 2010 at 11:34am by DrBob222

thank u sooo much!! =)
Monday, June 14, 2010 at 3:45pm by Jessica

Thank u sooo much!! =)
Tuesday, June 15, 2010 at 2:14am by Jessica

Thank you sooo much!
Tuesday, July 27, 2010 at 9:45pm by rick

thank u sooo much :D
Sunday, July 3, 2011 at 11:03pm by Tc

the big idea of energy
omg i cant believe i have the iron and sulphur hw 2 and i am sooo stuck on the big idea of energy i dunno what 2 say arrrrgh
Tuesday, December 5, 2006 at 2:18pm by confused

Thank you sooo much Karan!
Saturday, April 5, 2014 at 5:48pm by Janavi

Organic Chemistry Lab
Thanks sooo much!!!
Monday, November 8, 2010 at 2:42pm by Jeanne

thankk you sooo much but what is what is P2???
Friday, April 15, 2011 at 3:46pm by ChemLover

I am too, gold, I think. thanks sooo much for your help
Sunday, February 2, 2014 at 11:24pm by tricia

How do i do this?? i am sooo confused. can someone please help me?? Janet, Chrissy, and Jack want to divide their grocery bill evenly. They bouoght a apples for 90 cents each, b bananas for 60 cents each, and c cantelopes for $2.10 each. Write and simplify and expression ...
Wednesday, September 24, 2008 at 10:04pm by CLARISSA

Thanks sooo much DrBob222! And I'm glad to help kylie :D
Saturday, February 18, 2012 at 10:24pm by Jen

OK i have one attempt left, first i change the gauge pressue to newton/m^2? And since P= F/A solve for A after making f = 1440*g? Theni have to divide it by 4 for every tire? but im having trouble with conversions, and my final answer being in cm^2. SOOO confused
Friday, December 4, 2009 at 9:37am by Elizabeth

thanks sooo much. it was the second solution u gave. thanks again
Tuesday, February 19, 2008 at 2:33pm by anonymous

Thank you guys sooo much, this definately helped a lot!
Monday, July 21, 2008 at 4:50pm by Mohammad

thanks sooo much i totally get it now wow thanks again :)
Wednesday, January 21, 2009 at 11:01pm by lyne

one third of the people in a convention room are seated in three-fourths of the chairs. THe rest of the people in the room decide to stand. If there are 8 empty chairs, how many people are standing? Please fully explain because i am sooo confused!!!
Wednesday, April 4, 2012 at 8:55pm by Audrey

Math-Can u help me Reiny? So confused :(
You poor soul are confused. You've used at least four different names in the last few minutes here. Identity crises are hard.
Friday, July 8, 2011 at 1:11pm by Ms. Sue

Wow! that was sooo fast. thank you for the help. sorry, i should have thought to provide the answers here they are. a) 3+ln(x^3) b) 1+ln(x^3) c) (3/x)+3lnx d) 3/(x^2) e) 1/x
Saturday, March 2, 2013 at 1:42pm by ken

This is sooo easy it is 36 and how you get that is by dividing the number of girls by 3 and then adding that number to how many girls you have which in that case is 27 sooo 27 divided by 3 equals 9 add 27 to 9 Answer: 36
Wednesday, August 24, 2011 at 6:20pm by Corrie

Determine the mass of zinc sulphide,ZnS which is produced when 6.2 g of zinc and 4.5 g of sulphur are reacted. This question is really confusing me, and I'm not sure where to start. I think I have to calculate the moles of each given reactant first in which case I have: nZn = ...
Sunday, October 17, 2010 at 5:51pm by Dan

Chemistry :(
Given that: 2Al(s)+(3/2)O2(g)--->Al2O3(s) change in H(rxn)= -1601 kJ/mol 2Fe(s)+(3/2)O2(g)--->Fe2O3(s) change in H(rxn)= -821 kJ/mol Calculate the standard enthalpy change for the following reaction: 2Al(s)+Fe2O3(s)--->2Fe(s)+Al2O3(s) _______kJ PLEASE EXPLAIN IM SOOO ...
Sunday, October 31, 2010 at 6:16pm by Lucy

im trying to rearrange the following equation for x but getting confused because of the brackets and squares. I understand the process of changing the subject but on more simple equations. Please can you help me. Here's the equation y = 3(x+5)^2
Thursday, November 19, 2009 at 11:01am by confused

Do you mind substiuting in numbers? I am still kinda confused...sorry.
Monday, April 12, 2010 at 2:27pm by Chem Confused

Soo...what am I doing wrong? Sorry I'm a bit confused here. pH= 4.75 + log (.06040/.02079) ? Then I get 5.203 which isn't the right answer either.
Monday, May 3, 2010 at 2:50pm by Amphee

Im sooo confused!! can someone please help me step by step?? In a 4- team tournament, the winner gets 1/2 of the proceeds, the second-place team gets 1/4 of the proceeds, and the remaining proceeds are shared equally among the other two teams. Write the expression that shows ...
Thursday, September 18, 2008 at 8:12pm by BOBBY

Im sooo confused!! can someone please help me step by step?? In a 4- team tournament, the winner gets 1/2 of the proceeds, the second-place team gets 1/4 of the proceeds, and the remaining proceeds are shared equally among the other two teams. Write the expression that shows ...
Thursday, September 18, 2008 at 8:42pm by BOBBY

What's the highest occupied molecular orbital of I-? I'm really confused here, I thought you could only find HOMO for the first two rows of the periodic table.
Monday, April 5, 2010 at 12:59am by echem

I am supposed to use patterns or linear equation to fill in the graph but I just cant figure this one out.. can someone give me a hint or help me out on this on. p /2/88/8 /10 /? q/22/?/110/110/330 How can I use a linear equation or patterns when each there is not an equal ...
Sunday, September 20, 2009 at 5:57pm by sam

Chemistry CONFUSED
Ok I'm really confused on the question I asked how many CO2 molecules can be made with 0.500 mol of oxygen atoms. Please help with setting this up
Thursday, September 29, 2011 at 4:02pm by Monique

Chemistry - Solutions
Sorry, i dont really understand the answer here.. can the term hydration be applied for CCl4? you said solvation.. yeah im confused.
Thursday, October 18, 2007 at 6:38pm by Dick Rogers

Help please am kind of confused on this problem, am mostly confused on what state the products will be. Find net ionic equation? 2Al(s)+ 3CuCl3(aq)-> 2AlCl3(?)+ 2Cu(?)
Monday, October 4, 2010 at 12:02pm by John

chemistry garde 11
I can see where you could be confused. I am confused after reading the problem, also. KClO3 is a SOLID, and it is measured in grams and not L (as in 0.128 L). Could that be grams? Here is a worked example of KClO3 decomposition to yield oxygen gas AT any condition. But the way...
Saturday, January 15, 2011 at 11:39am by DrBob222

(ppm and ppb are sooo not easy for me to get)c A saturated solution of PbCO3 contains 0.00011 g PbCO3 in 100. g of water. What is this concentration in parts per million?
Thursday, April 26, 2012 at 11:24pm by john

Help please am kind of confused on this problem, am mostly confused on what state the products will be. Find net ionic equation? I BELIEVE ITS BALANCED NOW. 2Al(s)+ 2CuCl3(aq)-> 2AlCl3(?)+ 2Cu(?)
Monday, October 4, 2010 at 6:12pm by John

Hi, I am totally confused with this chemistry because none of this stuff is in my book, so I come to the great ones with my question: 1. Can you show me how to convert celsius to farenheit (please show me an example and your work so I can get it please) 2. farenheit to kelvin...
Sunday, September 24, 2006 at 9:35am by Confused considerable

US History
kay um. my teacher's not very good at teaching. great guy, but not meant to teach..sooo I have 6 questions that aren't even in the chapter and the index is of no help to me right now... sooo here goes: Describe the basic population structure and social life of the 17th century...
Thursday, August 21, 2008 at 9:03pm by me

I'm so confused!!!!!!!!!! I need to write out the equation for the reaction between (+)-tartaric acid and (+_)-1-phenylethylamine. I know tartaric acid is C4H6O6 and 1-phenylethylamie is C8H11N. Where do I go from here?
Monday, October 27, 2008 at 6:56pm by Andrew

Math (I'm really confused). Please help.
So the sides must be the same .... 9x - 14 = 7x 2x =14 x = 7 ( I am confused that this confused you)
Friday, February 14, 2014 at 9:52am by Reiny

Need major help on this one. Sooo confused... Binomial distribution to solve the problems. There is a 60 percent probability that a store will sell one of Red bags to any customer who comes into the shop and views the bags. Out of the next 7 people who come into the shop, what...
Sunday, August 24, 2008 at 11:00pm by Student

chemistry A level
hello my teacher has really confused me. can anyone tell me how you can figure out the shapes of molecules and what types of shapes there are??? i am really confused! thankyou xxxx
Friday, December 5, 2008 at 4:56pm by yasmin xx

Hey Guys! It's confused english here! I was wondering if you could answer this question. In this sentence - what would rubbish be used as? A noun, verb, or adjective? Sue Ellen was talking rubbish when she told people about the story. Please answer this question! Thank you!
Wednesday, January 28, 2009 at 12:15pm by confused english

so i know that one mole is 6.022*10^23 particles in 12g of a carbon 12 isotope. im confused in finding the amount of moles in a particular substane. there is a formula that determines it, i think its n=m/M, yet im confused with what it means..
Wednesday, May 19, 2010 at 2:58am by leana

Physics 1
I am really confused as to what you are doing here.
Thursday, September 13, 2007 at 12:47pm by Douchan

So I'm still confused on what's happening here?
Monday, September 18, 2006 at 2:46pm by J

Thank you for using the Jiskha Homework Help Forum, BUT, please do not call this "Confused." Call it "Graphing" or "Math" or whatever class it is for. Most of the volunteers are looking for a certain area and probably wouldn't even look at "Confused."
Friday, June 13, 2008 at 5:38pm by SraJMcGin

Thank you SOOO much!
Thursday, June 4, 2009 at 6:02pm by Cassie

Most here will not want to write a paper explaining all of this and it will take about a page or more to do a good job. Are you confused about any one thing? How can I help besides write the paper for you?
Thursday, March 8, 2012 at 9:13pm by DrBob222

Chemistry- To Bob Pursleyy
Thank you sooo much, I was using grams of Molybdenum, so I looked up the mass of an electron and converted it and got the correct answer. I thought I didn't solve for V right, I'm amazed that I got that right. Thank you for your help!
Sunday, October 7, 2007 at 8:14pm by Tammy

Algebra 1
ok, thank you sooo much!!! :)
Sunday, October 12, 2008 at 6:46pm by Bridget

Saturday, December 13, 2008 at 10:20am by Anonymous

Thank you sooo much!
Wednesday, January 7, 2009 at 10:45am by Samantha

Wednesday, January 7, 2009 at 7:26pm by Leslie

Thank you sooo much!
Monday, March 2, 2009 at 7:28pm by Tasha

Thank you sooo much :)
Wednesday, September 9, 2009 at 4:14pm by Van

thank you sooo much
Tuesday, October 27, 2009 at 2:53pm by uzair

Sunday, January 3, 2010 at 4:11pm by Jackie

thank you sooo much :)
Monday, March 1, 2010 at 6:30pm by tiffany

thank u sooo much
Tuesday, March 30, 2010 at 7:25pm by JENNY

Thank you sooo much.
Thursday, April 22, 2010 at 9:12pm by Anonymous

Thank you sooo much!!
Saturday, June 5, 2010 at 5:55pm by Joe

thank you sooo much! :)
Wednesday, October 20, 2010 at 5:34pm by Dawn

thanks sooo much!!
Tuesday, November 23, 2010 at 4:33pm by hannah

thank u sooo much!!!!!!!:)
Tuesday, December 14, 2010 at 8:44pm by JJ

thank you sooo much!
Tuesday, March 29, 2011 at 7:57pm by Becky

thank you sooo much! :)
Saturday, April 9, 2011 at 9:09pm by sw

thank you sooo much :)
Sunday, June 12, 2011 at 7:49am by Mindy

Thank u sooo much :-).
Tuesday, February 7, 2012 at 7:47pm by jj

thanks sooo much!
Wednesday, April 4, 2012 at 7:30pm by URGENT - HELP ME

thank you sooo much
Wednesday, October 24, 2012 at 9:08pm by awade

Thanks SOOO much
Thursday, December 20, 2012 at 10:06pm by Alex

I'm sooo stuck.
Monday, August 10, 2009 at 12:20pm by HP

Physics Help..
Thank you sooo much!
Monday, December 30, 2013 at 11:23am by Erin

Physics Help..
Thank you sooo much!
Monday, December 30, 2013 at 11:23am by Rick

cran-grape, shmamgrape... it all taste like poooooooooop. and yea ok miss i play a ps2. GET IN THE 21st CENTURY!!! and actually sally means baby eating booger flicker sooo ummm.... no. and o yea, your mac sucks..
Sunday, September 27, 2009 at 7:12pm by billy

I'm confused, there is no explanation here and I REALLY need help on it!
Tuesday, July 14, 2009 at 7:23pm by Anonymous

Health Care
Thank you sooo much!!
Saturday, May 3, 2008 at 7:05pm by Patra

Social Studies
Thank you sooo much!
Saturday, May 10, 2008 at 6:06pm by Anonymous

Physical Science
Thank you sooo muchh!!!!!!! :) :) :) :)
Monday, September 29, 2008 at 7:31pm by Amy

thanks sooo much:)
Wednesday, December 17, 2008 at 5:16pm by Jamie Lynn

Greek Origins
Thank you sooo much!
Tuesday, June 9, 2009 at 7:42pm by Lena

Sooo.... was i right bobpursley?
Tuesday, November 10, 2009 at 5:04pm by Tori

i mm sooo dumb
Saturday, October 21, 2006 at 10:00am by Anonymous

Sci 275
Sunday, April 18, 2010 at 6:17pm by Ms. Sue

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