Sunday
April 20, 2014

Search: Chemistry- urgent help needed

Number of results: 113,955

English-URGENT-HELP NEEDED!
Can ANYONE please help me by going to either the very bottom of this page or the top of the next and click on "English-URGENT-HELP NEEDED!"? I really need some help on that one and I'm afraid no one will find it and I'll have to keep posting it over and over. THANK-YOU ...
Sunday, August 26, 2007 at 4:13pm by Anonymous

chemistry
urgent help needed!!! what is .0966 rounded to 2 significant digits? and why?
Wednesday, September 22, 2010 at 6:37pm by Ana

URENT HELP URGENT HELP URGENT HELP URGENT HELP URGENT HELP URGENT HELP URGENT HELP IN MAHT!!!
Find the number of (m) ways in which 6 people can ride a toboggan if ONE OUT OF THREE people must drive. M=? PLEASE DO NOT SOLVE! Just tell me how to do the problem. You MIGHT use factorial.
Wednesday, April 9, 2014 at 5:51pm by dddd47906

chemistry (urgent)
Hi, can you tell me what is needed to ionise the O^6+ ion further in order to turn it into an O^7+ ion ? Thanks.
Saturday, May 2, 2009 at 12:12pm by mathew -b

Chemistry - urgent help needed
The following is part of a procedure for a limit test for sulphates in an NaOH sample:- Dissolve 3.0g of NaOH in 6ml of deionized water, adjust to pH 7 with 12M HCl (about 6.2ml) and dilute to 15ml with deionized water. When about 6ml of 12M HCl was added, a white ppt was ...
Wednesday, September 22, 2010 at 6:03pm by candy

URGENT chemistry
My chemistry is rusty, but since this is urgent, try this... pV=nRT 45.4 L (p)= 0.625 (R) (-24 +273) R= gas constant T has to be changed into degrees Kelvin then solve for p I think it's right
Sunday, September 7, 2008 at 12:36pm by anonymous

CHEMISTRY LAB urgent assistance
As an added note (perhaps picky but I think needed) is that / is used as a divide sign while \ is used for other purposes.
Thursday, September 22, 2011 at 7:33am by DrBob222

Plz urgent
I don't see any chemistry tutors online right now. Did you label it properly, so a chemistry tutor will find it? As far as I know "Plz urgent" is not a school subject!
Saturday, February 23, 2013 at 7:42am by Writeacher

English
I just needed to know the season in which those things took place, which turned out to be spring. Could someone please check out the "English-URGENT- HELP NEEDED" post towards the bottom of this page?
Friday, August 24, 2007 at 9:54pm by Anonymous

help needed.............urgent
help me plz..............
Sunday, October 26, 2008 at 10:22am by Anonymous

chemistry urgent
if 500 ml of HCl solution is needed to react with 2.43 g of Mg, what is the molarity of the HCl solution?
Tuesday, November 30, 2010 at 1:14pm by Lynn

English-URGENT-HELP NEEDED!
Looking --
Sunday, August 26, 2007 at 4:13pm by Ms. Sue

math urgent help needed
thanks a lot
Saturday, October 25, 2008 at 3:15pm by Anonymous

math help needed
plz help me ...its urgent
Sunday, January 11, 2009 at 5:11pm by Anonymous

maths
2x+5=x+9 urgent help needed
Friday, January 3, 2014 at 11:41am by arzam

chemistry urgent urgent
Why are you having trouble with this? What is it you don't understand?
Monday, December 10, 2012 at 9:00pm by DrBob222

urgent maths help needed now
thNKS!
Thursday, October 20, 2011 at 12:04pm by joi

chemistry URGENT (1)
(26.4mL)(1.00g/mL) = 26.4g H2O To raise the temperature of 26.4 g H2O by (16.4 C- 10.0 C), we need: (4.18 J/g.C)(26.4 g)(6.4 C) = 706 J needed - 82.8 kJ.mol-1 CaCl2 is equivalent to: 82800 J / 111g CaCl2 = 746 J/g CaCl2 released. Use the values: 706 J needed and 746 J/g CaCl2 ...
Sunday, November 16, 2008 at 2:18pm by GK

Physics - urgent help needed
I really don't know how to answer this, please help.
Monday, April 13, 2009 at 6:26pm by Sam

chemistry urgent urgent
do compare the differentes
Monday, December 10, 2012 at 9:00pm by zachary

chemistry urgent urgent
Answered in another post.
Monday, January 28, 2013 at 10:51am by Devron

urgent urgent urgent
nor do I understand the question. Chemical makeup: proteins, containing C, H, O, N, a few S, and some P.
Friday, February 8, 2013 at 9:26pm by bobpursley

Urgent Art questions
That's why I put urgent, but I can take Urgent out of my next ones tomorrow ^.^
Tuesday, September 10, 2013 at 6:28pm by Gabby

Physics: urgent help needed
We will be happy to critique your thinking or work.
Saturday, April 9, 2011 at 9:08pm by bobpursley

math urgent help needed
-3(3)-2(-1)-7 -9+2-7= -14 i have no idea why it says its -20
Saturday, October 25, 2008 at 3:15pm by Claudia

URGENT Chemistry question
S + O2 ==> SO2 How many moles SO2 are needed? That is 100g/molar mass SO2 = 100/about 64 = about 1.6 but you need to do it more accurately. Using the coefficients in the balanced equation, convert 1.6 moles SO2 to a) moles S b) moles O2 1.6 mols SO2 x (1 mole S/1 mole SO2...
Thursday, November 3, 2011 at 10:17pm by DrBob222

chemistry/physics Urgent!!
how do i calculate the substrate concentration needed relative to Km to produce a rate relative to Vmax which is 0.1 x Vmax ?? I think i need to manipulate the michaelis menton eq but when i do it im left with [s] in the amount please help lib
Thursday, February 25, 2010 at 1:04pm by libby

URGENT LANGUAGE ARTS
PLEASE THIS IS URGENT VERY URGENT BUT I NEED HELP
Monday, December 17, 2012 at 9:00pm by Gabby

urgent urgent urgent
what is the chemical make up of actin and myocin
Friday, February 8, 2013 at 9:26pm by zachary

english- Proofread, URGENT!!
I read it and agree with Writeacher, all it needed was a polishing
Monday, June 16, 2008 at 7:49pm by ms. phillips

Maths urgent help needed!
thanks, just double checking to see if i got it right.
Sunday, October 23, 2011 at 9:28am by joi

Chemistry - urgent help needed
You have now specified 12 M HCl, that is not dilute. The white ppt was NaCl not in solution. You added a lot of Cl ions with the 12M acid, you already had Na ions. So many, they could not go into solution.
Wednesday, September 22, 2010 at 6:03pm by bobpursley

Career Urgent
These courses teach the skills needed to do the work of a web designer/developer.
Monday, May 11, 2009 at 8:11pm by Ms. Sue

maths-urgent
The weights will be in the same ratio as the volumes. You omitted the height of the second block. It is needed.
Monday, January 7, 2013 at 7:42am by drwls

its urgent math i need the answer fast
Save by doing what? How many units are being bought? Are they really needed?
Monday, January 14, 2013 at 6:16pm by drwls

physics urgent!
A figure or better description is needed to explain the orientation of the pole and the meaning of d1, d2, and d3.
Monday, November 24, 2008 at 2:11am by drwls

English
1. 2 more commas needed; check spelling 2. 2 commas needed; delete "practice" 3. comma needed; use the phrasing in parentheses 4. comma needed; omit "the" 5. revise the first clause to match #3; comma needed. 6. comma and 2 semicolons needed
Tuesday, January 31, 2012 at 4:56pm by Writeacher

chemistry urgent urgent
Discuss, in detail, the role played by DNA and RNA in genetic diseases. What are the breakthroughs, if any, in the treatment/management of genetic diseases?
Tuesday, January 15, 2013 at 10:37am by zachary

chemistry urgent urgent
... the hiv virus that causes aids destroys the immune system in the body. classify the hiv virus and explain the statement.
Monday, January 28, 2013 at 10:51am by zachary

math urgent urgent urgent
perpendicular to line -2x+y=7 contains the point (-4,-2) the equation of line is
Friday, November 30, 2012 at 11:56pm by zach w

physics help needed very urgent !!!
Thanks so much it helped me alot ... my calculations were wrong but my methord was right ... once again thanks !! U Da Best !!
Friday, October 19, 2012 at 5:55pm by some one

Chemistry Urgent Help
according to the balanced equation, for each one mole of Na2S one mole ofBi(NO3)3 is needed. So how many moles of each do you start with? The lower number will be the limiting reactant. THis number will also be the number of moles of Bi2S3 produced, convert that to grams.
Thursday, January 7, 2010 at 4:29pm by bobpursley

chemistry 2
You are instructed to create 800. mL of a 0.69 M phosphate buffer with a pH of 7.6. You have phosphoric acid and the sodium salts NaH2PO4, Na2HPO4, and Na3PO4 available. what is the molarity needed for the acid component of the buffer?What is the molarity needed for the base ...
Tuesday, March 4, 2014 at 3:36pm by Danielle

urgent maths help needed now
jafar has an isosceles triangle with an area of 20.25cm squared, what is the length of the side facing the right angle?
Thursday, October 20, 2011 at 12:04pm by joi

English-URGENT-HELP NEEDED!
It's now on the top of page two, and just called "English".
Sunday, August 26, 2007 at 4:13pm by Anonymous

Career Urgent
I don't know how this question is different from the first. As Ms.Sue indicated, these courses will give you the skills needed for that job. If this does not satisfy you, repost with clearer questions. Thanks for asking.
Monday, May 11, 2009 at 8:11pm by PsyDAG

chemistry urgent urgent
thank you
Tuesday, January 15, 2013 at 10:37am by zachary

math urgent urgent urgent
(12,0) and (0,6) center at (-2,2) radius 3 domain all reals, range all reals >= -9 (-2,-25)
Saturday, December 1, 2012 at 12:37am by Steve

urgent urgent urgent
A freshman studying medicine at an Ivy League College is a part of his class crew team and exercises regularly. After a particularly strenuous exercise session, he experiences severe cramps in his thighs and pain in his biceps. explain the process the muscle go through
Wednesday, February 6, 2013 at 9:11pm by zachary

help needed ....urgent
Around the time of the Roman Empire the terms inch, foot and yard were refined. What was the length of a foot based on?
Sunday, October 26, 2008 at 4:52pm by Anonymous

chemistry
what is the number of grams needed to prepare a 1.23 M solution of nitric acid if 250.0 mL are needed?
Thursday, May 19, 2011 at 2:23pm by Anonymous

Chemistry
Thank you Dr. The former is needed to find the volume of H2 in this case. I expect that once I perform the lab, the latter will be needed. You've helped me a great deal. You may expect to see me more often. I'm in your care for this semester, amongst any other Chemistry tutors.
Saturday, October 22, 2011 at 8:42pm by Martin

Chemistry help needed
How many milligram of lysozyme (MW=14,600 g/mol) are needed to make 3 liters of a 10^-6 M solution?
Sunday, September 15, 2013 at 6:00pm by Kris

Chemistry- urgent help needed
How do I prepare 40% v/v from 95% ethanol? When we say 95% ethanol, do we usually mean 95% w/w ethanol unless otherwise stated? Please show me the calculation steps to prepare 40% v/v from 95% w/w ethanol. Thanks.
Sunday, September 19, 2010 at 6:08pm by annie

math urgent urgent urgent
1)let f(x) be a polynomial function explian how to use the factor theorem to check if (x-c) is a factor of F(x) 2) use synthetic division to factor X^2-2x^2-9x+18 completly
Friday, November 30, 2012 at 9:30pm by zach w

urgent urgent urgent
A freshman studying medicine at an Ivy League College is a part of his class crew team and exercises regularly. After a particularly strenuous exercise session, he experiences severe cramps in his thighs and pain in his biceps. •Explain the chemical process that occurred in ...
Thursday, February 7, 2013 at 11:42am by zachary

chemistry urgent
if 100 g of iron were reacted with 100 g of oxygen according to the reaction below, the maximum yield in grams of Fe2O3 would be: chemistry urgent - bobpursley, Tuesday, November 30, 2010 at 4:20pm Balance the equation. Note the coefficents on Fe and O2, that is the mole ...
Tuesday, November 30, 2010 at 4:33pm by lynn

oops--urgent urgent urgent
know, not now
Friday, February 8, 2013 at 9:26pm by DrBob222

Finance
pls respond to the above question by 12:00 PM CENTRAL TIME ON 10/25/10. MOST URGENT NEEDED ON MONDAY
Saturday, October 23, 2010 at 8:00pm by arnetha16

Chemistry - urgent
What form of NaOH did you use? Assume granular. moles NaOH=3/40 moles HCl needed= 3/40=volume*Molarity so lets see what 7 ml will neutralize molarity=3/40/.007= or about 10Molar. 32Percent HCl is about 10M
Tuesday, September 21, 2010 at 10:03am by bobpursley

math urgent urgent urgent
-2x+y=7 can be written as y=2x+7, so we see it has slope=2 so, the perpendicular has slope -1/2 now you have a point and a slope: y+2 = -1/2 (x+4) and you can massage that as you will.
Friday, November 30, 2012 at 11:56pm by Steve

chemistry
a student needed 1000 ml of a 0.10 buffer of ph 4.0. calculate the amount of sodium acetate and acidic acid needed for this solution
Tuesday, April 20, 2010 at 8:30pm by bay

Physics - urgent, please help
In its final trip upstream to its spawning territory, a slamon jumps to the top of a waterfall 1.9m high. What is the minimum vertical velocity needed by the salmon at the end of this motion?
Saturday, February 21, 2009 at 10:59pm by Li

math urgent urgent urgent
6x+2y=12 find intercept a circle equation x^2+y^2+4x-4y-1=0 and graph 2)find domain and range f(x)=x^2-4x-5 find vertex of f(x) =x^2+4x-21
Friday, November 30, 2012 at 11:56pm by zach w

math urgent urgent urgent
x+2y=12 find intercept a circle equation x^2+y^2+4x-4y-1=0 and graph 2)find domain and range f(x)=x^2-4x-5 find vertex of f(x) =x^2+4x-21
Saturday, December 1, 2012 at 12:37am by zach w

urgent maths help needed now
The answer is exactly nine, since sqrt(40.5)*sqrt(2) = sqrt(81) I should have seen that. You're welcome!
Thursday, October 20, 2011 at 12:04pm by drwls

Math, not "Help (URGENT)"
Assistance needed. Please type your subject in the School Subject box. Any other words are likely to delay responses from a teacher who knows that subject well.
Tuesday, February 2, 2010 at 2:59am by Writeacher

Honors Chemistry
Yes, the answer you gave me for the first one was exactly what I needed -- sorry I didn't make it clear enough as to what I needed :( lol. I totally understand both explanations! Thanks!! :D
Tuesday, September 22, 2009 at 8:09pm by Emily

English language
what could be an example of something that is urgent but is not important? and something that is important but not urgent? these questions refer to daily actions or well any actions, i have absolutely no idea how to answer that. Sure doesn't urgent and important meant almost ...
Tuesday, November 29, 2011 at 2:32pm by Caroline

chemistry urgent
hydrogen gas is collected in a bottle, and the pressure of the gas is 892 torr at 24 °C. what is the pressure of hydrogen gas when the temperature decreases to 20 °C? chemistry - DrBob222, Tuesday, November 30, 2010 at 1:25pm (P1/T1) = (P2/T2) Dear Dr Bob: is this a right ...
Tuesday, November 30, 2010 at 3:30pm by Lynn

math (urgent help needed)
We can't draw graphs here. I answered the other parts of this question several days ago. This is the third time I have seen it posted. Perhaps someone else will offer you a clearer explanation.
Friday, February 29, 2008 at 3:16pm by drwls

Physics - urgent help needed
Please, please, please, this is the first question of many and I don't get it.
Tuesday, April 21, 2009 at 5:29pm by Linn

Physics - urgent help needed
Explain using an example how to charge an object positively using only a negatively charged object.
Monday, April 13, 2009 at 7:29pm by Sam

Physics urgent help needed!
velocity is the first derivative of position. v=6.0t i -18.0 t^2 j acceleration is the second derivative of position or a= 6.0 i -36 t j
Sunday, September 13, 2009 at 6:25pm by bobpursley

Foreign languages
1. ... his behaviour. 2. comma needed 3. two commas needed 4. comma needed 5. spelling (2 errors) and comma needed 6. Don't use "pass" in this context. 7. OK
Tuesday, May 22, 2012 at 10:42am by Writeacher

algebra 1...urgent
If your question is so urgent, what have you done to try to solve these problems?
Wednesday, March 5, 2008 at 9:24pm by Ms. Sue

Precalculus(URGENT)
Sorry, I only do the non-URGENT ones
Thursday, March 11, 2010 at 4:38pm by drwls

English
1. ... corruption, ... I don't understand this: "he survived a change of monarch" -- let me know what you mean here, and I'll help you word it differently. 2. ... Whig, ... wealth, ... 3. two commas needed 4. OK 5. two commas needed 6. No hyphen needed; one comma needed.
Saturday, February 18, 2012 at 2:57pm by Writeacher

math
Draw a venn diagram to illustrate the following. In a shop 50 cars were inspected and it found that 23 needed new brakes and 34 needed new tires. 3 needed no services at all how many needed new brakes and new tires? How many only needed brakes? Please help
Friday, December 9, 2011 at 11:38am by kia

earth sci.....help needed ...urgent
help me plz....plz.;...plz//////
Monday, November 17, 2008 at 9:03pm by Anonymous

Chemistry
Record the amount of heat needed to change phases for water-ice to steam using graphical analysis. Is there a one accurate amount of heat needed to change phases, I thought it varied depending the problem... Would the question be asking for the heat needed in my graph that I ...
Thursday, June 10, 2010 at 10:29pm by Amy~

geometry
i need help with this geometry prblem my math book is online on this site: w w w . k e y m a t h . com / D G 3 the class passcode is: 1574-4c524 The chapter is 0 Lesson 0.2 pg. 9 problem number 6 REMEMBER 4-FOLD SYMMENTRY IS NEEDED !!! URGENT !!!
Sunday, September 19, 2010 at 5:54pm by vaishnavi

geometry
i need help with this geometry prblem my math book is online on this site: w w w . k e y m a t h . com / D G 3 the class passcode is: 1574-4c524 The chapter is 0 Lesson 0.2 pg. 9 problem number 6 REMEMBER 4-FOLD SYMMENTRY IS NEEDED !!! URGENT !!!
Sunday, September 19, 2010 at 5:54pm by vaishnavi

Venn Diagram (URGENT)
What are 6 similarities between Canada and Haiti? 1. French Influence 2. 3. 4. 5. 6. Please someone help, this is urgent. thank you.
Thursday, April 30, 2009 at 12:56am by John

Math *URGENT
Wow, classic case of urgent "homework dumping" I will be very happy to check your answers.
Thursday, December 20, 2012 at 9:37pm by Reiny

URGENT LANGUAGE ARTS URGENT~!
The website also says the hyphen is unnecessary when it follows the modified word.
Friday, April 12, 2013 at 10:09pm by Ms. Sue

chemistry urgent urgent
Here is a google search. One or more of these sites should provide you with adequate information to write your discussion. https://www.google.com/search?q=DNA+and+RNA++genetic+diseases&ie=utf-8&oe=utf-8&aq=t&rls=org.mozilla:en-US:official&client=firefox-a
Tuesday, January 15, 2013 at 10:37am by DrBob222

Math urgent
explain how to compute the xy term of the product (3x-4y)^2? if possible with solution please.... its urgent
Sunday, September 7, 2008 at 5:01pm by Ayushma

science-urgent
What are differences between Continental Drifts and Plate Tectonics? I need at last 4 for each. Please help its urgent!!!!! Thanks a bunch! Ellie
Monday, November 24, 2008 at 8:58am by Ellie

egypt
urgent!!!!urgent!!!!!! have to go to bruins game at 5:45whats the magical fiqures inbetween the rapping in a mummy?
Thursday, January 29, 2009 at 5:06pm by lilgeeny245

Urgent language arts
It's urgent i got 5 min.
Monday, December 17, 2012 at 11:48pm by Gabby

chemistry urgent urgent
Analyze the properties of a sodium atom and a sodium ion. What are the differences in mass, stability, and reactivity that are caused due to the differences between the sodium atom and sodium ion?
Monday, December 10, 2012 at 9:00pm by zachary

VERY URGENT MATH~!!!!!!!!
ik i shouldn't put a time limit and im srry but this is really urgent i didn't know how late it was DX PLZZ HELP!
Friday, January 11, 2013 at 9:15pm by Gabby

Physics urgent help have a test!!!
And your work is where? You are posting "urgent" problems under different names. Very suspicious, we really frown on cheating.
Saturday, April 9, 2011 at 9:01pm by bobpursley

URGENT LANGUAGE ARTS URGENT~!
"on the same line"?? What in the world does that mean? Make sure you are clear on what type of word each one is. Then re-think your answer.
Friday, April 12, 2013 at 10:09pm by Writeacher

AP Chemistry
E = hc/wavelength, solve for E in joules. 1 watt = 1 J/s, make the conversion to 5 mW, then see how many joules is needed to run 120 sec. I would then use a proportion to determine how many of the photons are needed.
Wednesday, November 17, 2010 at 5:31pm by DrBob222

Chemistry (urgent)
Thank you for your help.
Tuesday, September 13, 2011 at 5:09am by Bella

CHEMISTRY: URGENT
ok thanks
Monday, October 29, 2012 at 10:48pm by LC

math urgent help needed
it’s not that difficult I was not too good in probability and even in algebra i learnt from an online tutoring education company that's tcyonline this also give individual sessions for a particular topic i was enrolled for a package in algebra and probability
Saturday, October 25, 2008 at 3:15pm by preekan

math urgent help needed
the question is: -3x-2z-7 if x=3 and z= -1 i did the the question and got the answer - 14 ....but the answer key that i got say -20....can anyone help me... with this plz....
Saturday, October 25, 2008 at 3:15pm by Anonymous

Pages: 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | Next>>

Search
Members