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April 19, 2014

Search: Chem hw!

Number of results: 15,185

Physics Help
Another table http://www.chem.mtu.edu/~tbco/cm3230/steamtables.pdf gives more precise values Hs =2801.7 kJ/kg Hw = 936.48 kJ/kg As a result ζ= (Ht-Hw)/ (Hs-Hw)= =(2279.434-936.48)/(2801.7-936.48) = =13.42.954/1865.22=0.7199 => ≈72%
Sunday, July 14, 2013 at 5:35pm by Elena

Social Studies 7R - DBQ Essay Check
Thank You! :) Finally! I'm done with all of my hw u kno i had hw for all of my classes 2nite (besides content support, gym and orchestra) i had hw for sci, math, eng, facs, and ss thanks for helping me w/ my hw have a wonderful night see u online 2morrow
Monday, February 13, 2012 at 8:57pm by Laruen

Chem hw!
1
Thursday, March 11, 2010 at 12:18am by Anonymous

Chem hw!
des
Thursday, March 11, 2010 at 12:18am by Anonymous

chem
i dont know what it is but thats the equation on my hw
Tuesday, December 4, 2007 at 6:23pm by madison

NEED HELP WITH CHEM HW
See your other post above.
Saturday, October 1, 2011 at 7:51pm by DrBob222

UCI
Doing chem lab hw too huh? 1.60x 10^-5 M * 0.1 L / 1.54E-04 M = L convert to mL
Friday, April 9, 2010 at 12:17am by echem

math
i need help quick i have no clue how to do these problems and its hw! this is an example of the hw -w-5+5(5w+9) if w =1
Tuesday, October 23, 2007 at 11:02pm by Arely

PLEASE HELP! this is for tomorrow!!! English hw
My hw says this: what is the question and answer flow for an exclamatory sentence? also... article adjective can be called?
Tuesday, September 25, 2007 at 8:23pm by Mathilde

chem
K= 6.9x10^10 which way does this dominate to right or left? for equilibrium constant? this is a hw problem i just dont understand
Thursday, December 6, 2007 at 5:07pm by alicia

chem hw "help"
What is the ratio of the activities of Zn 2+ and Pb 2+ in a solution that is in equilibrium with respect to sphalerite and galena?disregard hydrolysis effect
Monday, September 13, 2010 at 2:33pm by moon

chem hw "help"
What is the ratio of the activities of Zn 2+ and Pb 2+ in a solution that is in equilibrium with respect to sphalerite and galena?disregard hydrolysis effect
Wednesday, September 15, 2010 at 6:14pm by moon

chem
How many grams do 4.30 x 1021 molecules of UF6 weigh? Report the answer in correct number of significant figures and units.
Sunday, June 23, 2013 at 8:49pm by hw

chem help please
K= 6.9x10^10 which way does this dominate to right or left? for equilibrium constant? this is a hw problem i just dont understand
Thursday, December 6, 2007 at 7:53pm by alicia

hw
concentrated sulfuric acid has a density of 1.84 g/ml. calculate the mass in grams of 1.00 liter of this acid. how to solve this?
Thursday, September 22, 2011 at 5:42pm by hw help ASAP

chem
Hi am doing a question for HW. Just need to double check: Is this the balanced equation for the combustion of titanium(IV) chloride? TiCl4 + O2 ---> TiO2 + 2Cl2
Sunday, September 16, 2007 at 7:08pm by manny

MEGSSS (math)
im confused too,but in megsss, there is no mercy! where are you guys from, and how can i connect to you too, for hw help? it would be great for a quick responce to come my way, because my hw is due tomorow. eekk! help please!
Tuesday, January 6, 2009 at 8:31pm by adeline

science
okay i have the same hw too! i have managed to do most of it but i am stuck on the big idea of energy! i really need help. whyu do teachers give hw that people can't do!!! lmao xx
Friday, October 20, 2006 at 2:34pm by laura <3

Everybody hw help who go facebook
I dont use facbook.but hw essay topic what should people do to get rid out of facebook? What should they do if they r addicted to it? Ples helppp
Wednesday, May 1, 2013 at 10:12pm by Nisha

Social Studies
oh never mind i didn't see that on my hw now I found the answer we r doing a DBQ on the native americans, we are done with unit so as a project/essay we have to do a DBQ for hw we just have to finish in documents, we have 6 documents my teacher made the document packet it's ...
Thursday, October 27, 2011 at 6:31pm by Laruen

Chem
its pm i guess we have to multipy by 10^-12 thn i dont knw abt mass d=m/v since i dont even knw the units too hw to cont
Friday, January 16, 2009 at 6:32pm by Juliee

Science 8R - HW Help!
Science 8R HW - Using the steps of the Scientific Method solve a problem that you may have (for example, 1. How can I get my little brother to stop eating my homework) I can't think of one.... please help! any ideas or suggestions???
Wednesday, September 19, 2012 at 8:48pm by Lauren

please help w/ chem hw
An equilibrium mixture at 225∘C contains 8.010−2M NH3 and 0.20M H2 for the reaction 3H2(g)+N2(g)←→2NH3(g) If the Kc at this temperature is 1.7102, what is the equilibrium concentration of N2?
Sunday, July 28, 2013 at 10:33pm by Anonymous

Chem hw!
Show us the problem(s) you have tried to solve, one at a time, and someone will critique your thoughts. This is not a place to drop off homework and pick up the answers before school. These are mostly all exercises in using the ideal gas law, PV = nRT
Thursday, March 11, 2010 at 12:18am by drwls

Physics/Mechanics
HW 7_2_2 576 -576 281.33 -281.33 HW 7_3_1 -P*x
Tuesday, June 18, 2013 at 9:24pm by simonsay

MIT 2.01X
HW 7_2_2 576 -576 281.33 -281.33 HW 7_3_1 -P*x
Sunday, June 23, 2013 at 4:47pm by simonsay

Mechanics/Physics
HW 7_2_2 576 -576 281.33 -281.33 HW 7_3_1 -p*x
Sunday, June 30, 2013 at 5:48pm by Jon

MIT 2.01X
HW 7_2_2 576 -576 281.33 -281.33 HW 7_3_1 -P*x
Tuesday, June 25, 2013 at 9:17am by simonsay

Physics Help
(A)Ht=Hsζ+(1-ζ)Hw, where Ht = total (actual) enthalpy (kJ/kg), Hs = enthalpy of steam (kJ/kg), Hw = enthalpy of saturated water or condensate (kJ/kg) Using steam-pressure table http://enpub.fulton.asu.edu/ece340/pdf/steam_tables.PDF we can find the magnitudes for p=...
Sunday, July 14, 2013 at 5:35pm by Elena

physics
A persn carries a 218N suitcse up a stairs.the displcment is 4.20m vertically & 4.60m horizntally. A.hw much work does the person do on the suitcase B. If the prsn carries the same suitcse dwn.hw much work does he do
Monday, August 15, 2011 at 2:29am by Luc

chemistry
Its been a while since CHem but since this is homework help and not HW do lets start by asking you, what is the formula for sugar? And while your at that write in your own words what a mole is, so I know your level of comprehension and can go into that if desired. -Thanks for ...
Monday, January 30, 2012 at 8:31pm by Phil Rewa

math
not sure if this had to do with math but my professor gave us this last hw assignment that i don't understand at all. It has to do with the grade scaling he does. 4x Exams = 37450 HW = 9362 Final = 16385 Lab = 23407 Recitation = 7022 Total Points = 93626 He asks whats the ...
Thursday, July 5, 2012 at 8:35pm by Anonymous

are there any other free hw help sights?
are there any other free hw help sights?
Thursday, September 13, 2007 at 6:01pm by help on hw

chem
i tried the answer in my online hw and it said it was wrong. i am looking in my text book and CnH2n-2. the answer you guys are saying is the formula for alkynes. but i need to find the formula for dialkene. the formula for just alkene is CnH2n. but i dont know how to make that...
Sunday, October 24, 2010 at 4:48pm by rebekah

Essential Mathematics 2
6cm, 5cm, 3cm This formula for the surface area is for an open box with length L and width W: S.A.(open)= (LW)+2(HL)+2(HW) For a closed box, it would be: S.A.(closed)= 2(LW+HL+HW) You would do: 2(5x6)+2(5x3)+2(6x3)=?
Tuesday, May 10, 2011 at 2:29pm by MathMate

Chem Home Work Help!
I am a bit confuse with a question from a home work that I need to do by today please help! HW question... 1) A sample of neon gas occupies 8.77 L at 20C. What is the pressure, in atmospheres, exerted by 1.45 mol of this gas? When you've gotten the answer to this question you...
Tuesday, April 29, 2008 at 4:00pm by Sujeil

chem
If I initially have a gas at a pressure of 13.5 atm, a volume of 2300 mL, and a temperature of 200 K, and then I raise the pressure to 14 atm and increase the temperature to 300 K, what is the new volume of the gas? Report the answer in correct number of significant figures ...
Sunday, June 23, 2013 at 8:50pm by hw

please help w/ chem hw
Kc = [NH3]^2 / [N2] [H2]^3 so [N2] = [NH3]^2 / [H2]^3 Kc
Sunday, July 28, 2013 at 10:33pm by Graham

Chem HW Help!
I just remember two gas laws. The general one is PV = nRT. The other one is P1V1/T1 = P2V2/T2 which I use when no number of mols is given. I also remember that 1 mol of a gas at STP occupies 22.4 L. Nothing to combine that way. But if you will post a specific question, perhaps...
Thursday, May 1, 2008 at 6:37pm by DrBob222

NEED HELP WITH CHEM HW
Ethanol (C2H5OH) is synthesized for industrial use by the following reaction, carried out at very high pressure. C2H4(g) + H2O(g) C2H5OH(l) What is the maximum amount of ethanol (in grams) that can be produced when 2.2 kg of ethylene (C2H4) and 0.014 kg of steam are placed ...
Saturday, October 1, 2011 at 7:51pm by Anonymous

chem-repost
but. i can tell its wrong because of what i stated: "i tried the answer in my online hw and it said it was wrong. i am looking in my text book and CnH2n-2. the answer you guys are saying is the formula for alkynes. but i need to find the formula for dialkene. the formula for ...
Sunday, October 24, 2010 at 5:57pm by rebekah

Chem HW Help!
I need help answering some questions on how to combine gas law.If for some reason you don't feel you shold answer this question can you provided me with the steps on how to combine gas laws or give me a good website that may provided help or may have a good combine gas law ...
Thursday, May 1, 2008 at 6:37pm by Lizy

Chemistry
Hi, This is one of my chem hw problems. Does anyone have links to websites that might help me solve this..or equations? It sounds like there are two parts to the question but I'm not sure. Volts and Joules? 1. Electrons are used to determine the structure of crystal surfaces. ...
Monday, October 27, 2008 at 12:05am by Anne

chem hw
Assuming equal concentrations, rank these aqueous solutions by their freezing point: Li2SO4, Li3PO4, SnCl4, NH4Br. (from highest freezing point to lowest freezing poinT) Is the order Li3PO4, Li2SO4, SnCl4, and NH4Br???????? If not what is the correct order?
Sunday, February 19, 2012 at 1:46am by Amy

Chem hw!
See the response by drwls at http://www.jiskha.com/display.cgi?id=1268284727
Thursday, March 11, 2010 at 12:18am by DrBob222

physics
http://www.astro.queensu.ca/~tjb/hw/P10706/hw8_old.pdf
Sunday, November 17, 2013 at 10:06am by Elena

english
Try some of the following links for information: http://search.yahoo.com/search?fr=mcafee&p=hw+to+make+an+outline+from+Lord+of+the+Flies Sra
Thursday, October 20, 2011 at 12:47am by SraJMcGin

magnets
Prob. 9 http://www-physics.ucsd.edu/students/courses/winter2010/physics2b/hw/hw8.pdf
Wednesday, December 18, 2013 at 6:57am by Elena

algebra
is it 3/(x-5) or 3/x -5?
Sunday, January 23, 2011 at 4:52pm by hw

algebra
3.1
Tuesday, February 8, 2011 at 7:37pm by hw

AP Chem
I looked at the first four, they are right. Dont you work with someone on chem homework? Like a study group? That is a very effective way to work chem and physics problems.
Wednesday, November 19, 2008 at 11:22am by bobpursley

trigonometry
thanks a bunch!
Sunday, January 23, 2011 at 4:51pm by hw

math
5/8 was present
Tuesday, February 8, 2011 at 8:09pm by hw

Jiska hw help
You don't.
Monday, September 26, 2011 at 11:04am by Writeacher

hw check eng
1.a 2.d 3.c 4.b 5.c 4.b
Tuesday, November 1, 2011 at 7:05pm by ME

vocab.
thanks dude. u did my hw
Monday, November 26, 2007 at 11:40pm by faggot

help me
haha i have this for hw
Wednesday, January 24, 2007 at 11:45am by meme

hw
1.5 * 56 = ?
Wednesday, November 24, 2010 at 7:17pm by Ms. Sue

math
62.5 percent
Tuesday, February 8, 2011 at 8:09pm by hw

math-geometry
you mean 5/1?
Tuesday, February 8, 2011 at 8:29pm by hw

hw help ASAP
how did u get this answer?????
Monday, September 19, 2011 at 12:40pm by bb222

SS7R - HW Check
ok...
Sunday, June 10, 2012 at 8:47pm by Laruen

Math HW Check
thanks
Tuesday, September 4, 2012 at 5:14pm by Laruen

math hw
108
Sunday, October 14, 2012 at 9:07pm by ellis

Chemistry hW
that's not an answer!
Sunday, November 18, 2012 at 9:01am by 123

math hw
so what do i do now?
Saturday, November 17, 2012 at 10:13pm by ellis

Chemistry hW
concepts??
Sunday, November 18, 2012 at 9:01am by Anonymous

Physics HW, Help Please
thank you!! =)
Friday, December 7, 2012 at 3:30pm by Michael

physics hw
2250 N
Sunday, May 1, 2011 at 8:38pm by Anonymous

Chem
Consider the following cell: Pt(s)|H2(g, p1)|H+(aq, pHA)||H+(aq, pHC)|H2(g, p2)|Pt(s) If the partial pressure of hydrogen gas is the same for both half-cells, what is E for the cell? a) 0.0296 log(pHA/PhC) b) 0.0296 log(pHC/PhA) c) 0.0592 (pHA - pHC) d) 0.0592 (pHC - pHA) I ...
Monday, March 31, 2008 at 8:06pm by Ginger

Financial Management
I NEED HELP WITH HW
Saturday, November 3, 2007 at 1:54am by ANNA

science
idk? i got it for hw
Monday, September 22, 2008 at 7:48pm by carl

Science
son put j
Wednesday, February 18, 2009 at 10:40pm by checking hw

chemistry hw please help
he's wrpng
Tuesday, November 10, 2009 at 3:42pm by ass

i really need help with my hw
can someone plzzz help me
Thursday, April 22, 2010 at 8:01pm by l

ALGEBRA!!
i was looking for help ... not to solve my hw. -.-
Thursday, October 7, 2010 at 2:09pm by natali

Algebra
did you not understand my answer before?
Tuesday, February 8, 2011 at 8:07pm by hw

math
hw is right. 8/8 - 3/8 = 5/8
Tuesday, February 8, 2011 at 8:09pm by Ms. Sue

3rd grade math hw help!
A
Thursday, February 3, 2011 at 9:45pm by TAMARLYN

Math
4th word is HOW not hw
Monday, February 21, 2011 at 6:38pm by Julia

HTML homework
do my hw plz
Tuesday, September 30, 2008 at 6:14pm by dana

hw help
what is N*.40=20 solve for N
Tuesday, September 13, 2011 at 8:57pm by bobpursley

math
thanks for the answer was for my hw tonight too^^^^^
Friday, March 7, 2008 at 3:41pm by BRosky

SS7R - HW Question Check
OK! :) Thank You! :)
Tuesday, January 24, 2012 at 9:35pm by Laruen

3rd grade math hw help!
1. A, E, L, M, W, V 2. F, H, K, N, T, X, Z 3. K, Y 4. Yes, L, X
Monday, January 31, 2011 at 10:16pm by Anonymous

NEED HELP WITH french HW
la
Saturday, October 1, 2011 at 7:50pm by Anonymous

Science 7R - HW Qs. Help!!!
Thank You! :)
Monday, May 7, 2012 at 7:45pm by Laruen

SCI7R - HW Qs. Check!
Thanks! :)
Monday, May 7, 2012 at 8:31pm by Laruen

Science - HW qs. check
thank you! :)
Sunday, June 3, 2012 at 3:32pm by Laruen

SS7R - HW Check
which number?????
Sunday, June 10, 2012 at 8:47pm by Laruen

SS7R - HW Check
is it numebr 6???
Sunday, June 10, 2012 at 8:47pm by Laruen

SS7R - HW Qs. Check
thank you
Sunday, June 10, 2012 at 9:08pm by Laruen

Math HW Check
You're welcome.
Tuesday, September 4, 2012 at 5:14pm by Ms. Sue

math hw
show work
Sunday, October 14, 2012 at 9:07pm by ellis

math hw
Right.
Sunday, October 14, 2012 at 9:07pm by Ms. Sue

math hw
286 + 93
Sunday, October 14, 2012 at 9:32pm by frank

math hw
You're very welcome.
Saturday, November 17, 2012 at 10:13pm by Ms. Sue

Biology HW HELP
i got this project too. can u help
Tuesday, November 23, 2010 at 9:41pm by elena

3rd grade math hw help!
5 d c
Monday, January 31, 2011 at 10:16pm by Anonymous

Physics
i could not get there hw to put angle
Monday, March 18, 2013 at 3:02am by Stranger

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