Thursday
April 17, 2014

Search: chem/some1 check my work plz

Number of results: 85,922

chem/some1 check my work plz.
Thank u!!!!
Tuesday, November 16, 2010 at 7:23pm by julia

chem/some1 check my work plz.
It looks good to me.
Tuesday, November 16, 2010 at 9:13pm by DrBob222

chem/some1 check my work plz.
You're welcome. Good luck on your test.
Tuesday, November 16, 2010 at 9:13pm by DrBob222

chem/some1 check my work plz.
a. OK, except the decimal is wrong, typo b. ok c. correct.
Tuesday, November 16, 2010 at 7:23pm by bobpursley

chem/some1 check my work plz.
thank you for all your help Drbob222...just whish me luck for tomorrow in my test... :)
Tuesday, November 16, 2010 at 9:13pm by julia

chem/some1 check my work plz.
thank you for all your help Drbob222...just whish me luck for tomorrow in my test... :)
Tuesday, November 16, 2010 at 9:13pm by julia

chem- plz check my work
I didn't check the math but the procedure is right. Good work.
Wednesday, December 8, 2010 at 6:09pm by DrBob222

Calculus some1 plz!!!!
sadly, it didnt work :( thanks for trying
Monday, March 14, 2011 at 7:47pm by yolana

Chem -plz check work
You're welcome.
Wednesday, May 28, 2008 at 4:02pm by DrBob222

help plz
some1 help wit my current post plz;)
Friday, April 2, 2010 at 11:32pm by catherine

Chem -plz check work
thanks very much!
Wednesday, May 28, 2008 at 4:02pm by Emily B

chem/some1 check my work plz.
looks good to me. A book like the Shaum's is pretty good. You may be able to find some practice problems on google. Just type in something like gas law problems. http://chemistry.about.com/cs/workedproblems/a/bl113003a.htm
Tuesday, November 16, 2010 at 8:36pm by DrBob222

chem/some1 check my work plz.
nitrogen gas contained in a cylinder with a volume of 5.0x10^2 mL @ a temp of 30C and pressure of 710 torr. The gas is then compresse to a volume of 25mL and the temp. is reaised to 820C. what is the new pressure of the nitrogen gas?? Pf=p1*v1*t1/Tf*Vf P=(700torr)(5.02x10^2mL...
Tuesday, November 16, 2010 at 8:36pm by julia

chem/some1 check my work plz.
2NH3(g)+3CuO(s)=N2(g)+3Cu(s)+3H2O(g) if 18.1grams of ammonia reacts with 90.4 grams of copper(II) oxide, which is the limitting reagent?? what is the theorectical yield of nitrogen gasd? if 8.52 g of N2 are formed, what is the % yield of nitrogn gas?? please check if is ...
Tuesday, November 16, 2010 at 7:23pm by julia

chem/plz/check work studying for a final
I guess I need to figure out the s.f. or stop rounding numbers.... :( thank you...
Thursday, December 16, 2010 at 7:46pm by julia

bobpursley plz check
i m getting 9.77 g for Bi2S3 . no limiting reactant .. both are same .. can u plz conform
Thursday, January 7, 2010 at 4:29pm by Chem

Physics
some1 plz help !
Wednesday, May 8, 2013 at 4:08pm by Rohan

Math Help PLEASE!
Thank you so much!
Saturday, April 21, 2012 at 3:12pm by Some1 Help Me Plz

Inequalities
Thank you both so much.
Saturday, April 21, 2012 at 3:26pm by Some1 Help Me Plz

Anti-ln?!?!
Thanks Reiny!
Saturday, April 21, 2012 at 1:47pm by Some1 Help Me Plz

can some1 plz recheck my answers
is 4. C
Wednesday, March 13, 2013 at 4:18pm by Amy

can some1 plz recheck my answers
Yes, 4.c.
Wednesday, March 13, 2013 at 4:18pm by Writeacher

can some1 plz recheck my answers
n n
Wednesday, March 13, 2013 at 4:18pm by annabelle

Physics
some1 plz help........!
Saturday, April 13, 2013 at 12:05pm by tanvir ali

math
can some1 help me wit my location subject plz
Thursday, February 25, 2010 at 8:00pm by larry

chem/some1 check my work plz.
You made a typo for A, it should be 0.053. For B, I used 28.01 for molar mass N2 and obtained an answer of 10.61 for g N2. Then 8.52/10.61 *100 = 80.28 which I rounded to 80.3. Your method is fine. My source for molar mass may be incorrect. I didn't add all of those number ...
Tuesday, November 16, 2010 at 7:23pm by DrBob222

drwis
can some1 plz help me with this question i have 2 submit my exam
Saturday, April 17, 2010 at 1:18am by becca

Inequalities
I thought the first was an ellipse and the second was a circle
Saturday, April 21, 2012 at 3:26pm by Some1 Help Me Plz

Exponential Functions?!
Ah, thank you so much!!! GOd bless you!
Saturday, April 21, 2012 at 3:10pm by Some1 Help Me Plz

chem/plz/check work studying for a final
I get 508.2 K which rounds to 508 K. I don't see anything wrong with what you've done. Perhaps the answer was supposed to be in celsius.
Thursday, December 16, 2010 at 8:36pm by DrBob222

help plz
Which word is a synonym of the word evolve? a}recession b}decline c}progress d}retrogression p.s.ive been working on this same question for 1 month todaysthe last day i have can some1 plz just give me the answer plzzz lol btw:who likes boxing?0_o
Wednesday, April 14, 2010 at 10:43pm by justin

science
i nd some1 to tel me some neutral subtances plz help me!
Sunday, September 16, 2007 at 4:14am by meeeeeeeeeeeee!!!

science
yea i really don't know so some1 plz answer! :( i hate homework
Tuesday, March 29, 2011 at 4:31pm by lo

chem
yes thank yew finally an answer!
Sunday, February 6, 2011 at 12:39pm by some1

chem/some1 check my work plz.
air bags actived when a severe impact causes a steel ball to compress a spring and electrically ignite a detonator cap. this causes NaN3 to decompose explosively according to the following reaction: 2NaN3(s)=2Na(s)+3N2(g) what mas of NaN3 must be reacted to inflate an air bag ...
Tuesday, November 16, 2010 at 8:28pm by julia

can some1 plz recheck my answers
1 and 2 . . . already answered below. 3. all of the above! 4. I don't think it's A. A is what you plan to do; which choice indicates what you actually do?
Wednesday, March 13, 2013 at 4:18pm by Writeacher

chem/some1 check my work plz.
air bags actived when a severe impact causes a steel ball to compress a spring and electrically ignite a detonator cap. this causes NaN3 to decompose explosively according to the following reaction: 2NaN3(s)=2Na(s)+3N2(g) what mas of NaN3 must be reacted to inflate an air bag...
Tuesday, November 16, 2010 at 9:13pm by julia

Plz -- Chem Help
Posted by Rushi on Sunday, March 15, 2009 at 3:35pm. Question.. Nicotinic acid (niacin) is a monoprotic acid with the formula HC6H4NO2. A solution that is 0.012M in the nicotinic acid has a pH of 3.39 at 25C. what is the acid-ionization constant, Ka and pKa for this acid at ...
Wednesday, March 18, 2009 at 10:54am by A

chem/plz/check work studying for a final
I think you rounded too soon. Just leave those numbers in the calculator. 20.5 x 453.6 = 9298.8 g (slight difference) 1.33 x 1000/1.057 = 1258.3 cc 9298.8/1248.3 = 7.39 g/cc.
Thursday, December 16, 2010 at 11:58am by DrBob222

chem/plz/check work studying for a final
Here is a quick check. You have a half mole at near stp. About 11 liters. But in reality, your pressure is about ten percent lower than stp, so volume about 12 liters, and temp is about 5 percent higher, so volume is about 13 liters. I would go with your answer.
Thursday, December 16, 2010 at 10:15am by bobpursley

English Speech Paper (can some1 revise it)PLZ&TY
all I need to do is add a conclusion but wanted to know if this sounded ok first. NONE of this is plagiarized I put everything but statistics in my own words :)
Friday, February 14, 2014 at 5:10pm by dark1

chem- plz check my work
2. Given the following equation, C2H5OH(l) + 3 O2(g)---> 2 CO2(g) + 3 H2O(l) How many liter of CO2 are expected in the combustion of 12.0 grams of ethanol? My work: 12.0g C2H5OH X 1 mol C2H5OH/46.08g C2H5OH X 2 mol CO2/1 molC2H5OH X 22.4L CO2/1 mol CO2 = 11.7 L CO2 all i ...
Wednesday, December 8, 2010 at 6:09pm by hannah

METRICS
i think mectrics are easy but SOMEBODY PLEASE HELP ME I HAVE TO DO THIS FOR SCIENCE!! I REALLY NEED TO KNOW THIS AND NOBODY KNOW EXCEPT MY SCIENCE TEACHER MR.JENKINS!!!!! OMGSH SOME1 PLZ!!!
Wednesday, August 2, 2006 at 5:47pm by hannah

chem
stilll didnt get it .. .. can u plz explain in detail ... how did u get the answer.. plz plz plz plz plzp l zp thnks Bond enthalpy is the energy required to break a mole of a certain type of bond. O=O = 495 kj/mol S-F = 327 kj/mol S=O = 523 kj/mol Use average bond enthalpies ...
Wednesday, November 12, 2008 at 11:54pm by DR BOOBB Plz HELP

Inequalities
graph the system of inequalities: ( x-3)^2/9 + (y+2)^2/4<=1 and (x-3)^2+(y+2)^2>=4 I do not know how to simplify this down enough to graph it
Saturday, April 21, 2012 at 3:26pm by Some1 Help Me Plz

CHEM
#1 is ok. #2. I assume binding energy is the same as work function. K. E. = (hc/lambda) - work function Convert 956 ev to Joules and substitute for K. E. h, c, and lambda (don't forget lambda is in meters). Solve for work function. Check my thinking. Check for typos.
Monday, November 5, 2007 at 10:14pm by DrBob222

chem
i am getting -28 KJ .. is it rite plz chk
Wednesday, November 12, 2008 at 11:54pm by urgent plz

Plz -- Chem Help
What I got is a bit different... Can you please check my work? [H+] = 10^-3.39 = 4.074*10^-4 = [C6H4NO2] [HC6H4NO2] = 0.012-4.074*10^-4 = 0.0116 M Ka = [4.074*10^-4]^2/0.0116 = 1.43*10^-5 pKa = -logKa = 4.84
Sunday, March 15, 2009 at 3:35pm by Ed

Equations of a Circle
Write the standard for of the equation of the circle that passes through the points at (0,8),(8,0),and (16,8). Then identify the center and radius of the circle. I have r=8, center=(8,8). What now?
Saturday, April 21, 2012 at 5:27pm by Some1 Help Me Plz

word unscramble
plz plz plz plz help me have to give it tommorow. it has to school items only. the four words are that need to be unscramble. 1. EEFILNPPTT 2. AEHIRSSTTW 3.EEHKOSSUY 4. CEGHLMOSTY SO PLZ HELP I REAlly wannt to know what it is plz help.
Thursday, September 28, 2006 at 3:34pm by shruti

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

Check my work plz?
2.53 3.50 5.75 could u help me with #11 and #14
Friday, February 14, 2014 at 2:01pm by Anonymous

chem/plz/check work studying for a final
I ALWAYS carry at least one more place than I know I'm allowed and sometimes even two more. You can ALWAYS throw those unwanted numbers away at the end when you round with s.f. in mind; you can't always ADD numbers at the end if you've thrown them away earlier.
Thursday, December 16, 2010 at 7:46pm by DrBob222

LIVING ENVIRONMENT
the ability to grow in size is a characteristic of living organism .Although an icicle may grow in size over time,it is considered nonliving because there is 1)an incerase in matter ,but no increase in the number of icicle. 2)an interaction between the icicle and the ...
Tuesday, February 12, 2013 at 9:14pm by tania sharmin

science
someone plz plz plz plz plz plz plz plz plz help me!
Friday, February 8, 2013 at 1:24pm by corie

Chem -plz check work
suppose that 2.00 mL of 0.01 mol/L sodium sulphide is used to test a 50.0 mL sample of water containing 0.0005 mol/L mercury nitrate ions. What mass of precipate is formed? Na2 = Hg(NO3)2 --->2NaNO3 + HgS My Work: nNa2S=0.002*0.01 =0.0002 mol nHg(NO3)2=0.05*0.0005 =0....
Wednesday, May 28, 2008 at 4:02pm by Lori

Check my work plz?
#11 As far as I know they all are. #14 a square is a quadrilateral 4*90 = 360
Friday, February 14, 2014 at 2:01pm by Damon

Plz, plz help! SS
Can you plz refer me to anything? oh can you check my answer for #1: Industries developed way quicker because they began using coal instead of wood and because of various technological developments such as the use of steam engines to power machines instead of manual labour.
Wednesday, February 5, 2014 at 4:29pm by Anonymous

Social Studies
I am doing an ABC book to for Florida and i need a word for the letter X to. IT is due MAY 26 , 2010!!!!!!!!!!!!!!!! I need HELP PLZ PLZ PLZ PLZ PLZ THANKS :)
Friday, May 7, 2010 at 3:55pm by angel

chemistry, plz check work
by any chance, are you taking chem 125 at calpoly? because my take-home quiz has the same exact question on it. anyways, the problem is that you need to use the molarity and not the moles. instead of having 2 mol for your initial concentrations, it needs to be 0.4M (2.00 mol/5...
Monday, March 2, 2009 at 1:26am by lalala

math help plz....
somebody plz check it
Saturday, January 10, 2009 at 10:37pm by Anonymous

Chem -plz check work
so i've worked on this some more, now I am asking if someone will plz check my work 2 half cells in a galvanic cell consist of one iron Fe(s) electorde in a solution of iron (II) sulphate FeSO4(aq)and a silver Ag(s) electrode in a silver nitrate solution, a)state the oxidation...
Tuesday, June 3, 2008 at 6:36pm by Sarah H

bio check plz plz plz
Mitosis (normal growth) --> 2 cells with 46 chromosomes each, while meiosis (reproductive cells) --> 23 chromosomes.
Monday, November 28, 2011 at 8:21am by PsyDAG

chem- repost
work at constant temp and pressure, will be pressure*deltaV in this case, you get two volumes of product S8(s)+4O2>>8SO2 work= p*dV on a per S8 mole basis, work= 101.3kPa*4*22.4dm^3*1m^3/1000dm^3 work= above in Joules check my thinking
Sunday, April 17, 2011 at 7:20pm by bobpursley

chem
I will be happy to check your work.
Tuesday, January 8, 2013 at 8:24am by bobpursley

social studies
plz plz plz plz i NEED help! awnser this question plz! my poster is do tomorrow! i NEED help!
Sunday, March 30, 2008 at 8:15pm by mia

Science
I need to observe and identify variables and I'm in 6th grade!!! Help, this work is killing me....It's scenario 1-4 and I have Mr Jones plz help plz
Friday, August 31, 2012 at 8:42pm by Destiny

Check my work plz?
#11 As far as I know they all are. #14 a square is a quadrilateral 4*90 = 360 I do not understand the earlier questions anyway.
Friday, February 14, 2014 at 2:01pm by Damon

math
find the eqt. of the tangent to the curves at (1,2). y^3+y^3=9(xy-1) [ans: y=5x-5] could some1 show me the calculation work bcus my ans is y=(6x+4)/5.
Thursday, July 21, 2011 at 7:19am by lily

Calculus some1 plz!!!!
A plane flies horizontally at an altitude of 5 km and passes directly over a tracking telescope on the ground. When the angle of elevation is π/3, this angle is decreasing at a rate of π/4 rad/min. How fast is the plane traveling at that time? (Round your answer to ...
Monday, March 14, 2011 at 7:47pm by yolana

I NEED HELP!!:(!!!! HELP ME PLZ!!
I GOT A FEW QUESTIONS SO what is a cell part that has the funcion of a gel-like material inside cells... and what releases energy into the cell.?? plz plz plz plz HELP!!!
Tuesday, October 20, 2009 at 8:48pm by i really need help!!

Chem(check my work, mass percent acetic acid)
f u
Monday, June 12, 2006 at 1:20pm by me

chem/plz/check work studying for a final
what is the volume occupied by 16.0g ethane gas (C2H6) at 720 Torr and 18C? V=nRT/P conversion of mol: 16.0g C2H6 X 1mol C2H6/30.07g C2H6= .53mol C2H6 V= .53 mol(0.0821 L*atm/mol*K)(291)K / 720 Torr (1 atm/760Torr) V= 13.5 L
Thursday, December 16, 2010 at 10:15am by julia

chem/plz/check work studying for a final
what is the volume occupied by 16.0g ethane gas (C2H6) at 720 Torr and 18C? V=nRT/P conversion of mol: 16.0g C2H6 X 1mol C2H6/30.07g C2H6= .53mol C2H6 V= .53 mol(0.0821 L*atm/mol*K)(291)K / 720 Torr (1 atm/760Torr) V= 13.5 L
Thursday, December 16, 2010 at 7:46pm by julia

physics,plz.....give me answer as soon as possible
plz plz plz.....help me
Wednesday, November 24, 2010 at 11:35am by sweetie

Plz -- Chem Help
Note you had pH 3.39 in the problem. [H+] = 10^-3.30= 0.00501 M = [C6H4NO2-] [HC6H4NO2] = 0.012 - 0.000501 =0.0115 M This step is OK. Ka = ( 0.00501)^2 / 0.0115 = 0.00218 pKa = - log Ka =2.66 Note here that you used 0.00501 and not 0.000501 in the numerator. So the digits are ...
Sunday, March 15, 2009 at 3:35pm by DrBob222

Math ....urgent help
i just dont get this elimination method ..... plz help me plz.....teach me how to keep the x and y in a parallel line. and which number to multiply.....plz help -5x-4y=-11 10x=-6-y help me plz......
Wednesday, January 7, 2009 at 5:01pm by vero

Urgent Chem help plz
is answer +103 KJ.. plz chk Plz explain in detail.... i tried to search on internet but i am confused with co-efficents.. how to set up the equaiton .. plz help me ??? Bond enthalpy is the energy required to break a mole of a certain type of bond. O=O = 495 kj/mol S-F = 327 kj...
Wednesday, November 12, 2008 at 11:16pm by Sarah

math
the volume of a rectangular solid is given by expressions given below.in each case find the dimentions of the solid. a)15x^2-51x+18. b)x^3+13x^2+32x+20. c)x^2-5x/2-3/2. d)x^4+x^3-x-1 plz everyone help me out.till 2 o'clock...plz plz plz
Wednesday, May 30, 2012 at 6:03am by PLZ HELP ME NOW...

physics
A 248-kg crate rests on a surface that is inclined above the horizontal at an angle of 19.5. A horizontal force (magnitude = 537 N and parallel to the ground, not the incline) is required to start the crate moving down the incline. What is the coefficient of static friction ...
Wednesday, November 9, 2011 at 5:59pm by Jul

biology
a boy inherits genes for tallness,but his growth is limited as a result of poor nitrition. this is an example of 1)an inherited disorder. 2)environmental influence on gene expression . 3)expression of a hidden trait 4)a characterstic controlled by more than one pair of genes. ...
Friday, February 8, 2013 at 12:44pm by tania sharmin

NJHS Letter Check (plz read it's really important)
Your message is clear and to the point. Good luck! Can you get community service credit for your library work?
Thursday, February 28, 2013 at 5:43pm by Ms. Sue

Vectors/Magnitude
The vector v has a magnitude of 89.7 feet and a direction of 12(degree sign)48'. find the magnitude of its vertical component a: 887.47 ft b: 19.87 ft c: 19.38 ft d: 87.58 ft
Sunday, April 22, 2012 at 5:04pm by Some1 Help Me Plz

Chem(check my work, mass percent acetic acid)
u fail
Monday, June 12, 2006 at 1:20pm by Anonymous

chem -repost for bobpursley
i don't know how to solve this. looked through all my notes but i'm not sure what kind of formula i am to use or if i even need one! please help me to understand the theory behind this: "calculate the work need to make room for the products in the combustion of S8(s) to SO2(g...
Sunday, April 17, 2011 at 8:53pm by please, help me

chem/plz/check work studying for a final
I don't get that number exactly. First, I don't think you should have rounded when you did. You are allowed at least 3 s.f. but you rounded to 0.53, throwing away at least 1 s.f. I obtained, using your numbers, 13.37 L, which would be rounded to 13.4 to three s.f. However, ...
Thursday, December 16, 2010 at 7:46pm by DrBob222

chem/plz/check work studying for a final
23. A 32.3 L sample of a gas at 305oC and 1.20 atm is to be cooled at constant pressure until its volume becomes 28.4L. What will be the new gas temperature? Tf = Vf*Ti/Vi Tf =28.4L x (305+273)K / 32.3L = (28.4)(578)K / 32.3 = 16415.2/32.3 Tf = 508K I got this one wrong on a ...
Thursday, December 16, 2010 at 8:36pm by julia

chem
The system has 3 mols gas on the left and 2 on the right; therefore, the system decreases in volume which means work is done ON the system if the pressure is constant. Work done ON the system is + (or > 0). Check my thinking.
Tuesday, November 20, 2007 at 4:14pm by DrBob222

college algebra-plz help
Yes, my mistake.find the center, radius and graph of circle. then find intercepts 3(x-5)^2+3y^2=12 plz show work
Sunday, December 9, 2012 at 6:50am by James

chem
No, but I shall be happy to check your work. The goal here is to HELP you do them so you learn to do them for yourself. It won't help you for me to do them for you.
Wednesday, December 10, 2008 at 5:30pm by DrBob222

physics
The magnitude of a force pulling a box 5 m at a 20 degree angle from horizontal is 68N. How much work is done on the box? plz help me solve this!
Wednesday, December 5, 2007 at 2:19pm by plz dont ignore me!!

urgent chem help ( dr bob plz)
See my response to your second post above and note that I didn't work this problem correctly. I have corrected it there, or at least I worked the other problem correctly and this one follows the same procedure.
Tuesday, February 17, 2009 at 9:44pm by DrBob222

bio check plz plz plz
in human (2n=46) mitosis result 2 cell with 23 chromoses and meosis result in (n=23) 4 cell with 46 chromoses... is this statment true ? please help me ....
Monday, November 28, 2011 at 8:21am by hiba

Chem hwk
Yes, if you posted your work I could check it but you didn't post your work. See my response to your other post above. Note that I did NOT say the answer was 126 for #1 and 0.9 for #2. 126 or so means the answer is approximately that number. You are to do the work and ...
Monday, April 29, 2013 at 12:12pm by DrBob222

Climate Graphs
i need a climate graph for japan now plz my teacher will kill me plz plz plz
Saturday, January 13, 2007 at 10:51pm by harry

Genetics (plz check answer)
Question: Calculate the frequency of the AA, Aa, and aa genotypes after one generation if the initial population consists of 0.2 AA, 0.6 Aa, and 0.2 aa. What I have done is: P = (0.2)+(0.5)(0.6)= 0.50 q = 1-p = 1 - 0.50 = 0.50 Can someone check my answer plz.
Wednesday, December 6, 2006 at 10:26pm by Josh

bio (plz check answer)
Question: Calculate the frequency of the AA, Aa, and aa genotypes after one generation if the initial population consists of 0.2 AA, 0.6 Aa, and 0.2 aa. What I have done is: P = (0.2)+(0.5)(0.6)= 0.50 q = 1-p = 1 - 0.50 = 0.50 Can someone check my answer plz.
Thursday, December 7, 2006 at 11:58am by Josh

Chem
The pOH is correct as is the (OH)^-. Show your work for the rest of it. I would do [(1.288 x 10^-3)^2/(y-1.288 x 10^-3)] = 1.8 x 10^-5 and solve for y. I get 0.0935 M but check my work. Without the correction for y-0.001288 (that is, calling it just y), I get 0.0922 M
Saturday, February 14, 2009 at 7:26pm by DrBob222

English
No the question already post it, plz help me ...plz ...plz ...any one... my native language is not english.. plz help me..
Saturday, July 24, 2010 at 10:46pm by shan

DT Textiles
in dt textiles we have to find a word or term that fits this description - Ensuring that you carry out your work without harming yourself or anyone else please can some1 help
Thursday, April 12, 2007 at 11:25am by sinn...............again

Pages: 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | Next>>

Search
Members