Number of results: 97,214
Since so far no chemistry teacher has taken notice of this post, could you repost both questions, but make sure you put "Chemistry-repost" as the subject? Thank you.
Thursday, October 1, 2009 at 12:30pm by MathMate
Chemistry -repost thank you in advance
I have a bottle of 95% ethanol purchased from the manufacturer. Normally, when it is not stated, does it mean 95% w/w ethanol? I need to prepare 100ml of 40% v/v ethanol solution from 95% ethanol. Please show me the calculation steps. Thanks.
Monday, September 20, 2010 at 10:33am by annie
Known: Cyanaocetic acid Ka=3.55*10^-3 ionization equation: HC3H2NO2<==> H^+ + C3H2NO2^- Unknown: pH of 0.4M of Cyanaocetic acid How can I find out the pH of 0.4M of Cyanaocetic acid ? Is there another way solving for it other than using ICE chart? Please help me ...
Tuesday, April 21, 2009 at 1:04am by anonymous
ACCOUNTING (Advance Sales)
Hi: I am unsure of how to adjust Advance Sales. For Year End, DEC 31, 2011. If my Unadjusted Balance for advance sales is $324,000 and I am told the following: 75% of the balance in Advance Sales is for garments to be made and delivered in 2012; the remaining 25% is from sales...
Sunday, January 27, 2013 at 8:00pm by Anon
The case In Re: Guardianship of Schiavo is an example of: A. why only the elderly need advance directives. B. the importance of advance directives, even if someone is relatively young. C. a case involving anatomical gifts. D. what happens when a person leaves conflicting forms...
Friday, February 3, 2012 at 1:18pm by Andy
Chemistry -repost thank you in advance
when not stated, 95% is v/v you want to dilute the ethanol 95/45 times, or 2.111 times. THat means one part alcohol, and 1.111 parts water. 100ml/2.111=47.37 is a part. so, 47.37 ml of 95% 52.63 ml of water.
Monday, September 20, 2010 at 10:33am by bobpursley
"It is the case that good communicators advance more quickly in the company." Which of the following would be the best revision of this sentence? "It is the case that good communicators advance faster in the company." "It is true that good ...
Thursday, December 1, 2011 at 10:00pm by pam
It is the case that good communicators advance more quickly in the company.Which of the following would be the best revision of this sentence? a) "Good communicators advance more quickly in the company." b) "It is true that good communicators advance more ...
Monday, March 8, 2010 at 1:37pm by vedrana
1.)The making of the nuclear reactor was an advance in a)Science *b)Technology c)none of the above 2.)The development of the airplane was an advance in a)Science b)Technology *c)none of the above 3.)The discovery of gravity was an advance in *a)Science b)Technology c)none of ...
Friday, July 2, 2010 at 3:58pm by Ariel
physics EM repost
Magnetic resonance imaging needs a magnetic field strength of 1.5 T. The solenoid is 1.8 m long and 75 cm in diameter. It is tightly wound with a single layer of 2.50-mm-diameter superconducting wire. What size current is needed? Thanks in advance
Monday, March 31, 2008 at 2:15pm by Spencer
A. Good communicators advance more quickly in the company. B. It is true that good communicators advance more rapidly in the company. C. There is evidence that has shown that good communicators advance more rapidly in the company. D. It is the case that good communicators ...
Saturday, February 26, 2011 at 9:38pm by Jenny
Which of the following is NOT truly an advance directive? A. Living will B. Do not resuscitate order C. Advance funeral arrangements D. Designation of a health care surrogate is it B im confused
Friday, February 3, 2012 at 1:27pm by Andy
need to apply the moral theory of rule utilitarianism in my essay but i dont really understand what it is. i tried google and wiki but it doesnt really provide me with clear meaning, or examples. could someone please explain to be as simple as possible what RULE utiliarianism...
Friday, October 12, 2007 at 9:58pm by melinda
repost of composition
You're welcome -- and yes, I have four! Be sure to develop that essay and repost. Then we'll see what you learned. =)
Wednesday, November 5, 2008 at 10:03am by Writeacher
Write formula equations and net ionic equations for the hydrolysis of sodium carbonate in water. Responses Chemistry - DrBob222, Friday, April 24, 2009 at 10:50pm The hydrolysis of Na2CO3 ends us as the hydrolysis of the carbonate ion. The molecular formula is Na2CO3 + HOH==...
Saturday, April 25, 2009 at 9:34pm by anonymous
Was the airplane classified a social change or advance during the Roaring Twenties? I say that it was more an economic change or advance.
Sunday, January 31, 2010 at 6:50pm by B.B.
That has been answered below. Find it under chemistry or repost if you have no luck.
Monday, March 9, 2009 at 7:37pm by DrBob222
In addition you don't give enough information about the 1.86 and 0.52 to help. Apparently some tutor gave you the procedure for solving the problem and you didn't understand. However, you have posted just piece-meal info and that isn't enough to help. I suggest you...
Saturday, November 5, 2011 at 10:51am by DrBob222
Good start on #1; finish it and repost. #2 is correct, yes. #3 -- To turn "analysis" into a verb, use "analyze" (or "analyzes" or "analyzed"). Give #3 a try, and repost.
Tuesday, August 30, 2011 at 3:36am by Writeacher
Would it be a cation? Thank you in advance.
Sunday, September 9, 2012 at 11:14am by Anya
Tickets to a show cost$10 in advance and $15 at the door. If 120 Tickets were sold for a total of $1390, how many of the tickets were bought in advance?
Monday, January 30, 2012 at 7:59pm by Rambo
12th grade, Advance Algebra
How to press the value of log, to evaluate log, to find the unknown log using EL-531WH, advance D.A.L
Sunday, February 27, 2011 at 6:48am by Eunthin
tickets to a school play cost 1.5 in advance and 2.0 at gate. by selling all 200 tickets students got $360. how many tickets did they sell in advance?
Sunday, January 29, 2012 at 11:20am by sonia
How do chemical salts form? Thank you in advance.
Sunday, September 9, 2012 at 8:48pm by Anya
Could someone please tell me where to find the 2008 AP Chemistry Multiple Choice for FREE ONLINE? Thank You in advance!
Tuesday, May 1, 2012 at 6:46pm by DAN
Math - repost for Anonymous
Can someone show me the steps to these questions (I will provide the correct answers)? Thanks in advance. 1. When the polynomials 4x^3 + mx^2 + nx + 11 is divided by x + 2, the remainder is -7. When the polynomial is divided by x - 1, the remainder is 14. What are the values ...
Friday, September 28, 2007 at 8:02am by Writeacher
Math repost for Spenser
You are looking for the form (x-h)^2 + (y-k)^2 = r^2 x^2 -x +y^2 + 2y - 3=0 so grouping by perfect squares... (x^2 -x + 1/4) + (y^2+2y+1)= +3-1/4-1 you do the rest. If you need help, repost.
Wednesday, October 10, 2007 at 1:35pm by bobpursley
This is an Advance placement chemistry class. We were told to fine the materials needed to do this lab, and the procedure. i need this info so i can physically do the lab.
Tuesday, March 22, 2011 at 9:48pm by meghan
oh i got the answer. but that you for everyone that was going to help in advance:)
Monday, September 20, 2010 at 4:41pm by Sarah
Bobpursley can you help me with my problems below?
I had problems from yesterday but I still don't get them can you help?do you want me to repost? repost: I cant find them.
Sunday, March 4, 2007 at 3:21pm by Margie
Can you repost #1 please. Thanks.
Monday, August 10, 2009 at 8:08pm by Chem
Is this the start to a story, essay, or are you just writing this for fun? What is it you want us to give our opinnion on? Please repost better directions. -Allyson
Wednesday, November 2, 2011 at 12:37pm by Allyson
Do you expect acetaminophen to be soluble in water? why or why not? thanks in advance
Wednesday, February 4, 2009 at 2:31pm by Nina
Do you expect acetaminophen to be soluble in 1.0 M NaOH? why or why not? thanks in advance
Wednesday, February 4, 2009 at 2:30pm by Nina
How do you determine the pH of a substance with an H+ concentration of 3.2 x 10^-3? Thanks in advance!
Tuesday, April 29, 2008 at 11:42pm by John
Salman, Please make a point of indicating it is a repost if you post more than once. We don't want three teachers working on the same problem at the same time.
Sunday, November 22, 2009 at 9:22am by MathMate
Physics repost - need more explanation
Sara is right. If you ask the follow-up where it was asked, I will see it faster there than a repost/new post. I do appreciate that you have noted it as a repost and included the relevant information. In fact, the question has been responded an hour and a half ago before I see...
Wednesday, September 23, 2009 at 9:28pm by MathMate
a $200 cash advance by using checks linked to to her credit card account.The bank charges a 2 % cash advance fee on the amount borrowed and offers no grace period on cah advances.Sidney paid the balance in full when the bill arrived.What was the cash advance fee? What was the ...
Monday, January 31, 2011 at 7:10am by tina
What does the reaction of alkaline earth metals with water tell you? Thanks in advance.
Sunday, September 9, 2012 at 3:03pm by Anya
chemistry please help
I answered the repost above.
Thursday, September 6, 2012 at 11:10am by DrBob222
Check your post, correct, and repost.
Monday, November 7, 2011 at 5:24am by DrBob222
sorry, typed incorrectly...will repost.
Monday, January 24, 2011 at 8:42pm by lisa
I accidentally deleted my response. Let me know if you didn't get it and I will repost.
Monday, August 10, 2009 at 8:08pm by DrBob222
oh, I finally got it! Thanks alot! :)
Saturday, April 25, 2009 at 9:34pm by anonymous
wow thanks! its so very clear!
Saturday, November 10, 2007 at 9:14am by keely
thanks a lot guys, i got it!!! :)
Saturday, November 10, 2007 at 3:13pm by keely
CoCl3 NaOH If you don't know how to do these, repost and I can show you how it's done.
Monday, October 8, 2007 at 4:43pm by DrBob222
See the link above at your repost.
Sunday, January 13, 2013 at 4:23pm by DrBob222
Where are the choices? All I see is A B C D E F. Please repost this.
Friday, January 11, 2013 at 9:03am by Allyson
I will be happy to critique, repost with how you approach it.
Friday, November 12, 2010 at 6:30pm by bobpursley
Or you can repost your work and let us look for the error.
Monday, January 5, 2009 at 6:19pm by DrBob222
What is the hydrogen ion concentration, in mol dm−3, when 2.00 g of sulfuric acid is dissolved in water to give 0.400 dm3 of solution? could you explain in a simple and clear way please because im not very good at chemistry. thanks in advance
Sunday, May 19, 2013 at 11:53pm by becky
It is better to NOT thank some one in advance! Refer to this site on business writing: http://www.businesswritingblog.com/business_writing/2009/08/thank-you-in-advance.html Sra
Sunday, April 17, 2011 at 12:29pm by SraJMcGin
Homework Help Forum: brain teaser help Current Questions | Post a New Question Answer this Question | Further Reading Posted by sam on Sunday, April 2, 2006 at 3:34pm. try to find the error. i couldn't its hard as !@#$%^& A B C D E F G H I J K L M N O P Q R S T U V W ...
Sunday, September 10, 2006 at 3:15am by chris
You need to repost this question and this time don't omit any words.
Tuesday, May 1, 2012 at 10:49am by DrBob222
You need to repost (at the top of the page) with some clarification.
Thursday, April 7, 2011 at 1:09pm by DrBob222
I keep getting the same thing for b. .17
Saturday, March 19, 2011 at 3:41pm by Rebekah
You question, as is, makes no sense. Please clarify and repost.
Monday, March 7, 2011 at 10:06pm by DrBob222
chemistry HMWK help.......
balance the equation. Repost, and I will lead you to the solution.
Thursday, November 11, 2010 at 5:23pm by bobpursley
I answered this below but repost your new work here.
Sunday, May 4, 2008 at 7:04pm by DrBob222
The program plans to acquire a total of 600 end items costing $570 million over a five-year period. The first production contract is to be awarded in FY04. The number of items to be procured (not delivered) each year and their estimated cost (in then-year dollars) is shown ...
Wednesday, March 20, 2013 at 12:02pm by CHUCK
Did Christensen use any counterarguments in his article in AIDS in Africa: Dying by the numbers. yes he did use counterarguments. Were they need to advance his thesis? yes it was needed to advance his thesis. What do you think of my answers. please do give feedback on them
Sunday, October 26, 2008 at 4:13pm by anonymoys
One more question please. Do I need to convert to joules or can it be kept in cal/g? Thanks in advance
Thursday, January 24, 2013 at 8:07am by Lori
How do I draw a Born-Haber Cycle for diphosphorous pentasulfide? Formula: P2S5, but you knew that! Thanks in advance!
Sunday, November 23, 2008 at 10:36pm by Kayla
List the total number of each type of atoms in the following reactants. A) 2HCL + Ca(OH)2 = 6 hydrogen, 2 carbon, 2 lithium, 2 calsium, 4 oxygen B) 2Na3PO3 + 3Ca(NO3)2 This one is a bit more complicated. May any chemistry teacher show me how to do this. Thank you very much in ...
Sunday, July 11, 2010 at 8:20pm by Derrick
Please repost it . Jan 20 is beyond my recall ability.
Tuesday, October 14, 2008 at 9:37pm by bobpursley
Do what you can and repost what you are confused about. Be sure and explain what it is you don't understand. We can help you through it.
Tuesday, July 29, 2008 at 11:48am by DrBob222
See my response to your later post above. Repost if you still don't get it.
Friday, January 18, 2008 at 9:04pm by DrBob222
How do you factor 3x^2-x-4? thanks in advance How do you factor 3x^2-x-4? thanks in advance 3 times what = 3? 3 of course. giving you (3x+/-a)(1x+/-b). a and b can only be 1 and 4 or 2 and 2. Can you take it from here? (3x-4)(x+1)?
Thursday, May 10, 2007 at 4:44pm by Diana
How would I determine when isomeric dimethylbenzene yields 1 ,2 or 3 mononitro derivatives when treate with HNO3/H2SO4 Thanks in advance
Thursday, April 29, 2010 at 2:28pm by chloe
This is something you need to suffer thru the mental processes. Do so, and I will critique it for you, repost.
Sunday, November 14, 2010 at 11:37am by bobpursley
I suggest you repost at the top of the page an clarify exactly what question yu are asking.
Tuesday, April 27, 2010 at 6:57pm by DrBob222
I answered this at the original post. If you still have questions, repost here.
Tuesday, April 1, 2008 at 11:53pm by DrBob222
You may need to repost your question in clearer terms. Do you mean? (34*15)/5 * (364/52) = 102 * 7 = 10,404 If so, there is no need to round, since there are no fractions. I hope this helps. If not, repost your question. Thanks for asking.
Wednesday, June 17, 2009 at 8:40pm by PsyDAG
What is the difference between an ionic bond and a covalent bond? I just keep forgetting which one is which...any easy way to remember these? PS> I know that you're not supposed to repost until 24 hours but I really need this answer! Thanks -MC
Thursday, February 5, 2009 at 7:05pm by mysterychicken
yes, except after taking all that time to type out a lengthy post, and then repost it, could you not have pulled out your calculator and found 20/36 = .555555 and then 21/37.8 = .555555 ???
Sunday, April 26, 2009 at 6:29pm by Reiny
Please tell me where I can find articles about polymers synthesis, I need one for presentation. Thank you so much in advance
Friday, August 13, 2010 at 12:36am by kan
Hi, i was wondering if anyone could tell me the name for the compound with the chemical formula of Ca(H2ASo4)2 ? im stuck on this question. thanks in advance.
Wednesday, October 1, 2008 at 9:59pm by Mae
Answered below. Please don't repost without checking your original post first for an answer. Also, tutors volunteer their time. You must have patience. If your question is not answered after 4 hours or so, then repost your question.
Friday, February 11, 2011 at 10:29pm by helper
chemistry - what?
what? Unbalanced parentheses, dangling S3 check your reaction and repost with correct syntax
Sunday, October 21, 2012 at 1:55pm by Steve
I answered the original post below. If that isn't appropriate you can repost at this spot and I can reorganize what I wrote.
Thursday, September 27, 2012 at 9:08pm by DrBob222
I assume this is a titration but I don't know of what. M x L = moles. If I have misunderstood the problem or this is not what you want, please repost and clarify.
Wednesday, October 26, 2011 at 1:41pm by DrBob222
I have missed out on the connection with NaCl. Please repost as a new question.
Sunday, May 2, 2010 at 12:38am by DrBob222
You won't get much response to your post until you repost with complete sentences that describes what you want answered.
Tuesday, November 10, 2009 at 4:55am by DrBob222
Hold on a minute. I think I gave you a slight bum steer. Let me repost a correction.
Sunday, October 26, 2008 at 8:24pm by DrBob222
Can someone explain to me, what does Metastable isotope means? I already read the definitions on the internet but I really don't understand it. Thanks in advance.
Tuesday, May 14, 2013 at 9:22pm by LG
Which of the following ions can be reduced from an aqueous solution? A)Ba2+ B)Al3+ C)Sn2+ D)Na+ Do I look for the higher volts? Thanks in advance.
Wednesday, November 18, 2009 at 12:24am by sh
Dimension Personal Education
Select the sentence that does not have a pronoun-antecedent error. 1. If anybody wants to go to that new restaurant, she or he has to make reservations a month in advance. 2. If anybody wants to go to that new restaurant, they have to make reservations a month in advance. My ...
Saturday, November 10, 2012 at 1:59pm by Jackie
repost, did you do 0.1201 * 0.005=6*10^-4, if so then you'd subtract this number from the one calculated in part 2 and there's your answer
Sunday, October 14, 2012 at 12:22pm by mike
I would have thought so too. If it actually isn't, please repost when you find out what it is and why "it" is stronger than TlOH.
Tuesday, December 2, 2008 at 5:36pm by DrBob222
Thanks. I posted this question 4 times titled math, math repost, math repost, and this one. You must be thinking of the other question about writing the standard form of the equation of the circle but oh well.
Wednesday, April 22, 2009 at 10:07pm by Jon
Why should the sodium hydroxide pellets be completely dissolved in the preparation of the NaOH solution? please explain thouroughly, thanksss in advance!!
Friday, March 18, 2011 at 9:32pm by Maria
Hi i am having trouble with this question: Name five household products that are not reactive, and for each product, describe the properties that make it ueful. Thanks in advance.
Sunday, March 16, 2008 at 5:31pm by Brooke
In adsorption, what is bulk concentration? How does that differ from initial concentration? Thanks in advance.
Wednesday, July 11, 2012 at 10:38am by Namie
No units on 9.50? In parentheses, "volume is ......" and where is its radius and is.....doesn't make sense. I suggest a repost and put everything in.
Wednesday, August 31, 2011 at 7:10pm by DrBob222
Bob Pursley answered this question for someone. If you still need help on this, repost at the top or look for it on this page.
Monday, March 8, 2010 at 9:55pm by DrBob222
In a recrystallization of vanillin, can you purify a substance whose solubility decreases as the temperature increases? Any help is appreciated!
Monday, June 23, 2008 at 8:54pm by Anonymous
Science repost for help
Sciece (chemistry) - help, Tuesday, September 25, 2007 at 4:32pm what is the particle theory
Tuesday, September 25, 2007 at 4:47pm by Ms. Sue
My question is that how can fe=fe(oh2)be balanced in a basic solution....THANKS IN ADVANCE.
Thursday, May 5, 2011 at 4:19am by Veronica
on the 1st page can someone please help me??????? Its the 2nd and 3rd black dot next to my nasme. Even if this is a repost, more information needs to be given before we can adequately respond. Please repost with more information. Thanks for asking.
Sunday, April 29, 2007 at 9:25pm by Mack
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