Saturday
April 19, 2014

Search: CHemistry Please Help..............LAB

Number of results: 175,191

Chemistry
I did a lab in chemistry about weighing table salt and sand and mixing it with water and pouring it through a funnel. One of my lab quetions was, What are some possible sources of error in this activity? First of all, I don't know what this question means. Can anyone please ...
Saturday, August 28, 2010 at 6:04pm by Jennifer

Chemistry
Can someone please help me on this two Chemistry questions...they are from my lab....the lab was on Acids and Bases using Red Cabbage Indicator. Q1- How consistent was the cabbage juice indicator for this lab? Discuss the limitations of using red cabbage juice as an indicator ...
Monday, October 12, 2009 at 5:31pm by Jessie

Chemistry-Lab-
You need a standard to see how good the chemistry and/or your lab techniques are. If you don't come up with the right answer then either the procedure is not very good or your lab technique is lousy.
Saturday, October 1, 2011 at 1:29pm by DrBob222

Chemistry
PLEASE, please, don't call a balance a scale. I weigh a sack of potatoes on a scale but in a chemistry lab I use a balance. :-) My students used to think my antics about this were very funny; in fact, so funny that they bought large poster boards and taped them up on the doors...
Monday, June 16, 2008 at 9:25pm by DrBob222

Chemistry Titration Lab HELP!
i have a titration lab with sodium hydroxide with an unknown vinegar all i know is we have 0.3 M sodium hydroxide solution (250 mL)and a 50ml burette that when titration was done the avg. of 3 trials was 27.7 mL im not sure what id write for the hypothesis of this lab or what ...
Wednesday, June 11, 2008 at 2:11pm by student

Biology
I really need help with my science lab. I was sick when we did the lab on Thursday and Friday was a snowday so I did not get to get the observations off my peers. My teacher has allowed people one more day and I do not understand this Lab at all. If someone could help me write...
Monday, March 5, 2007 at 6:47pm by Scott

Chemistry Titration Lab HELP!
Go to google and type in titrations lab. The 6th result "Performing Titration Lab" has lots of information and even a virtual titration tool that you can use to get the hang of it!
Wednesday, June 11, 2008 at 2:11pm by BADAMS

AP Chemistry
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

Chemistry
I need help with this chemistry flame test lab discussion question. "List the metals used in this lab in increasing order of the energy of the light emitted." We tested BaCl2, CaCl2, CuCl2, FE(NO3)3, KCl, LiCl, NaCl, & Sr(No3)2. I'm not completely sure how to know the energy ...
Saturday, November 2, 2013 at 11:30pm by Elva

Chemistry
I need help with this chemistry flame test lab discussion question. "List the metals used in this lab in increasing order of the energy of the light emitted." We tested BaCl2, CaCl2, CuCl2, FE(NO3)3, KCl, LiCl, NaCl, & Sr(No3)2. I'm not completely sure how to know the energy ...
Saturday, November 2, 2013 at 11:32pm by Elva

Chemistry
I need help with this chemistry flame test lab discussion question. "List the metals used in this lab in increasing order of the energy of the light emitted." We tested BaCl2, CaCl2, CuCl2, FE(NO3)3, KCl, LiCl, NaCl, & Sr(No3)2. I'm not completely sure how to know the energy ...
Sunday, November 3, 2013 at 8:52am by Elva

Chemistry
I am doing a lab on enthaply of vaporization of water, I got everything else on the post lab but these two questions, please help. The deltaHvap data from the handbook reference vary with temp. 1) if your data were perfect, but deltaHvap is not constant, how would this show up...
Wednesday, February 13, 2013 at 10:10pm by Kim

Organic Chemistry
You haven't supplied any details of what you did in the lab. We don't know where you are, much less what you did in the lab.
Monday, March 15, 2010 at 11:56pm by DrBob222

11th grade CHEMISTRY TITRATION LAB!
can someone just come to my house and do my lab for me????
Sunday, December 14, 2008 at 8:56pm by none

Chemistry
If you have the same lab as me read the introduction part of the lab... it has the answers for #1 and #2.... still stuck on #3 though
Sunday, November 28, 2010 at 11:34pm by Crzycoll

Chemistry
Why wouldn't you do this reaction directly in a lab (and would rather use Hess' Law to determine the enthalpy of formation)?: 1/2N2(g) + 2H2(g)+ 1/2Cl2(g) -> NH4Cl(s) I don't think the reactants are that dangerous...? It's still pretty safe to do in a lab, isn't it? Are ...
Monday, February 18, 2013 at 7:48pm by a Canadian

Chemistry Lab
Some of this I'm sure you know how to do? If you want to show the experiment perhaps we can help you through it but no one here will write your lab report for you.
Sunday, October 28, 2012 at 9:35pm by DrBob222

Chemistry 2 Lab
Nevermind. I got it. It would help if I looked at the concentration data that my lab book gives me complete the problem:)
Tuesday, March 19, 2013 at 6:50pm by Robby

chemistry
Is this a dry lab? If you did this in the lab you should know what you happened.
Monday, December 10, 2012 at 10:33am by DrBob222

Chem Lab Help
I wanted to know if any one has done the Determination of ASA Content of Tablets Lab Report. I need help doing the post lab questions
Tuesday, December 4, 2012 at 2:21am by Latica

chemistry
Outline a separation scheme for isolating pure isopentyl acetate from the reaction mixture. ( post lab question for the Banana oil lab)
Tuesday, July 9, 2013 at 4:43pm by chelsea

Chemistry Titration Lab HELP!
Keep it simple please
Wednesday, June 11, 2008 at 2:11pm by What?

Chemistry
I had a lab for chemistry where we mixed HCl(aq) with NaOH(aq) together and we needed to figure out the temperature. This was one of the questions we had to do before the experiment so we have knowledge on the lab.
Saturday, September 28, 2013 at 10:03pm by Quratulann

Chemistry
I had a lab for chemistry where we mixed HCl(aq) with NaOH(aq) together and we needed to figure out the temperature. This was one of the questions we had to do before the experiment so we have knowledge on the lab.
Saturday, September 28, 2013 at 10:03pm by Quratulann

chemistry
I did a lab on pressure and depth today. This lab was to simply submerge a plastic tube into a large graduated cynlinder to find the relationship between the two. I found that as the depth increases, so does the pressure. One of the questions I'm stuck on for part of my lab ...
Monday, January 11, 2010 at 7:21pm by CL

Science
I need help with this chemistry flame test lab discussion question. "List the metals used in this lab in increasing order of the energy of the light emitted." We tested BaCl2, CaCl2, CuCl2, FE(NO3)3, KCl, LiCl, NaCl, & Sr(No3)2. I'm not completely sure how to know the energy ...
Sunday, November 3, 2013 at 8:52am by Elva

organic chemistry lab pLEASE HELP
which one is more polar?????
Sunday, February 1, 2009 at 10:40pm by ladi

organic chemistry lab pLEASE HELP
which one is more polar?????
Sunday, February 1, 2009 at 10:40pm by ladi

Drbob222
Can you please help me with some questions I have on my Chemistry lab?
Saturday, November 27, 2010 at 10:30pm by Mandy

Microbiology
How can lab practices and safety precautions help reduce hazards in a lab setting? How do you handle blood cultures and pathogenic strains in a lab to minimize contamination?
Friday, May 3, 2013 at 12:06pm by Sara

Organic Chemistry Lab
Hi! For an orgo lab we had to isolate the following from milk powder and now I have to calculate the percentage yield, but first I need the theoretical yield. Can someone help me on the following? I need to know how of each there is in milk and I can do further calculation of ...
Friday, April 8, 2011 at 7:34pm by Jeanne

Honors Chemistry
We did a lab in class on Friday where we stuck a metal loop in various chemicals and stuck it in the flame of a Bunsen burner and we observed the flame's colors as the different metals went in. For every lab we do, we have to write a writeup which involves a graph. How could I...
Sunday, September 20, 2009 at 11:36pm by Emily

organic chemistry lab pLEASE HELP
What makes a molecule more polar?
Sunday, February 1, 2009 at 10:40pm by Dr Russ

chemistry
2 litres of acetronitrile is accidently spilt in a school lab of dimensions 40x20x10m and most evaporates calculate the ambient concentration of acetonitrile reach assuming that there are no air changes in the lab
Sunday, April 4, 2010 at 11:44pm by Heather

chemistry
i have to write lab report based on my determination of chemical formula & in lab we did experiment & found out the formula was cucl2*2h2o, in my lab report i have to start with mole to mole ratio how can i start writing that?
Wednesday, May 29, 2013 at 9:59am by Niki

CHemistry....Please double check DrBobb
anyone remember any questions for the lab quiz?
Saturday, January 24, 2009 at 1:06pm by eric

organic chemistry
I need help with a lab report on extraction of iodine by dichloromethane, please help!
Friday, June 10, 2011 at 11:14am by Delia

Integrated Science.
Hello there experts!Can you help me out with some of my questions?Thank you. My first question is. 1.)List 3 warning symbols in my home...please! 2.)What are some precautious i should take in a lab? and or Give 3 reasons why keen attention is being paid in a lab room? Please ...
Tuesday, September 11, 2007 at 5:20pm by Roseana.

chemistry; Lab questions help=)
Perhaps another tutor will know the details of the lab but I don't. If you care to post a summary of the procedure perhaps I can help.
Thursday, November 12, 2009 at 5:13pm by DrBob222

Chemistry
I always have trouble with making an hypothesis for a lab. I was wondering if someone can help me come up with a hypothesis for a formation of salt lab. Thanks!
Saturday, November 13, 2010 at 4:25pm by Jennifer

Chemistry
You don't provide enough information to know what you've done in the lab. By the way, please don't change screen names.
Saturday, March 3, 2012 at 12:50am by DrBob222

chemistry
please explain How % errors would affected the mass/moles of substances in lab?
Sunday, December 9, 2012 at 10:16pm by Jose

chemistry
sorry this question is out of a lab and i didnt think that nobody would understand the change in temperature since they havent done the lab but that does answer my question.
Thursday, February 4, 2010 at 8:31pm by lelia

Physics Lab
I'm doing a lab on centripetal force but I'm not sure how to make the graphs. If you search for "centripetal force lab" on Google and click "I'm Feeling Lucky" it will take you to the exact lab I'm doing. I'm supposed to graph Fc vs. Vt, Fc vs. Vt^2, and Fc vs. e^Vt, but I don...
Thursday, December 18, 2008 at 11:48pm by Bob

lab directions
i have to do a lab on finding the melting point , but i do not understand these instructions : for the known sample raise the temp until it is within 10 to 20 C of known value, and then lower the rate of heating to 2-3 C per minute ?? please explain with the temperature of 120 C
Thursday, September 8, 2011 at 9:16pm by lon

Science/Lab
Can anyone tell me what happens when you do the diffusion lab? It is the one where you take food coloring and drop it into hot, cold and room temperature water and tell the differences.I need all the info.... please help.
Wednesday, April 2, 2008 at 8:46pm by Molly

Science 7R (Lab questions)
We did a lab today at science and for homework we have to answer questions about the Lab. I need help on 2. 12. Name two ways that a plant and animal cells differ in structure? 13. How are plant and animal cells different in function? She said that we have t write it in ...
Thursday, December 1, 2011 at 5:26pm by Laruen

Lab in general
I just read my syllabus for lab and I am kind of shocked at what it says. I do know that I have to write out procedures of the lab in my nbk before coming to lab but I just read that it says "You will NOT be allowed to refer to you textbook/handout during the lab period" Is ...
Monday, September 3, 2007 at 1:31pm by ~christina~

Chemistry
Thanks I was thinking the same thing when my professor actually asked this question on our lab report well now I see why no one in lab could figure out the answer. Will print your rtesponse and share. Thank you I knew we were not all confused.
Friday, January 30, 2009 at 9:36am by Lumina

Chemistry: Bunsen Burner Lab
Hi! I have recently completed a bunsen burner lab and need help with a few conclusion questions: 1) What kind(s) of energy is released by the reaction of fuel and air in this system? 2) Which part of the Bunsen flame is hottest? How do you know? ->I researched it and know ...
Monday, February 6, 2012 at 9:48pm by Cicilia

Chemistry
I understand that I already did the lab... these are the results from the lab.... I did two trial I am having trouble finding the volume of O2 STP and the mole STP what do I use to figure out those volumes
Wednesday, October 17, 2007 at 9:41pm by Taylor

Chemistry lab
I did a copper cycle lab and my final weight of the copper is less than what i started with. Where did the lost copper go?
Sunday, April 24, 2011 at 3:39pm by Lindy

Chemistry
Oxygen gas and hydrogen gas are used to synthesize dihydrogen monoxide. A lab group utilizes 1.00 liters of oxygen and 1.01 liters of hydrogen to create 0.75 grams of product. How many milliliters of product should the group have expected to get? What will the [H+] ...
Monday, May 20, 2013 at 6:19pm by Nick

Chemistry
Hi! I am doing this chemistry lab of solubility curve of a solid investigation and this is for KCl. The purpose of this lab is to investigate the relationship between the solubility of potassium chloride and the temperature of its solution and to create a solubility curve for ...
Monday, February 18, 2013 at 8:22pm by Lori

Chemistry
Hi! I am doing this chemistry lab of solubility curve of a solid investigation and this is for KCl. The purpose of this lab is to investigate the relationship between the solubility of potassium chloride and the temperature of its solution and to create a solubility curve for ...
Monday, February 18, 2013 at 8:37pm by Lori

Chemistry
I'm doing some post lab questions and I'm stuck on one. In lab we performed Tollens test, Fehlings test, and Jones Oxidation to differentiate our unknown between an aldehyde or a ketone. The question I'm stuck on is " older bottles of benzaldehyde are often contaminated with ...
Tuesday, July 16, 2013 at 4:38pm by hayley

science lab
thank you...would you please look at my ecology question...its on the same topic as my science lab question... Thank you!!!!!!!
Monday, May 4, 2009 at 9:14pm by Ashley

Organic Chemistry
JYD, that is word for word the question in my lab manual for the lab due today. Any chance you are in Orgo Lab at UNC Chapel Hill? To clarify the question DrBob222, is there a difference between the oxidation states of the other carbons in isoborneol and the carbon bonded to ...
Monday, March 24, 2008 at 9:05pm by LadyLiz

Chemistry
Currently studying for an lab exam. Just have a few question about a typical Iodine Clock reaction lab. In an typical Iodine Clock reaction lab what would be the state of effect of an increase in the initial concentration of thiosulfate ion (S2O3 2-) and the increase in the ...
Friday, February 15, 2013 at 12:52pm by AhmadM

Chemistry
I am doing this exact same lab. Was your answer- test tube a, b, and c have an excess of CuSO4 -correct? That is the same answer I got from doing the lab, and that is what I would recommend answering.
Saturday, November 14, 2009 at 3:22pm by AOP student

Chemistry
I have never had a student post an entire lab online. Do you want me to do it for you? I will be happy to critique your thinking or work. This is a very elementary lab, I have done this for elementary school teachers.
Sunday, February 1, 2009 at 11:02am by bobpursley

Chemistry
In the lab I had a strip of magnesium that weighed 0.029 grams and I added 15 milliliters of 0.5 M hydrochloric acid into a flask and I never used any water during the lab. So I don't really understand where I would get the water vapor pressure.
Sunday, July 15, 2012 at 12:07am by Zach

AP BIOLOGY LAB
I am doing an ap biology lab on plant photosynthesis. It's specifically lab # 4 on plant pigments and photosynthesis and it's on question # 8 on Exercise 4B: Photosynthesis/ The Light Reaction. Identify the function of each of the cuvettes. I already have gone to the lab bench...
Sunday, November 2, 2008 at 7:12pm by Roger

Chemistry
Please help me with this chemistry question? I am working on a lab report and I am stuck on this question: Use the concept of stoichiometry to explain why balanaced equations are necessary when performing calculations in chemistry. Propose a situation where precise amounts of ...
Tuesday, September 8, 2009 at 1:19pm by Jessie

11th grade CHEMISTRY TITRATION LAB!
oh ok..i just wasnt sure if the vinegar was acetic acid because the procedure saud determining the concentration of acetic acid in an unkown sample of vinegar. thank you very much though! oh one last question, i understand the purpose of lab and how to conduct the lab but im ...
Sunday, December 14, 2008 at 8:56pm by student

Chemistry
In a lab that I am doing I am having difficulty in determining this: What are two indications that suggest a reaction has taken place when HCI was added to Mg? In this lab I am taking 0.1 Mg and adding it to the flask, then recording the temperature of the Mg which is (21 C). ...
Saturday, February 14, 2009 at 6:54pm by Anonomyous

Organic Chemistry Lab
For the "ISOLATION OF CHLOROPHYLL AND CAROTENOID PIGMENTS FROM SPINACH" Lab we have to think about how we can correct the following if they were to occur: a.) When a two-component mixture containing 1-ocetone and 1,4-dimethylbenzene gave only one spot with an Rf value of 0.95 ...
Thursday, October 21, 2010 at 1:23pm by Jeanne

SCI LAB
I'm not really sure what that is, but basically in our lab we just had like yeast, water, and baking soda. Then some of the test tubes we covered with a thin plastic film. It was stretchy and i'm trying to write my lab report so i'm trying to get the right word...
Sunday, March 9, 2008 at 10:03pm by Quick question

Chemistry Lab
So I did a kinetics lab on the rate of reaction of peroxydisulfate ion with iodide ion. Part 1 was the effect of concentration. One of the questions asked is to calculate the amount of thiosulfate consumed in moles. My results for trial 1 were (Times taken for consumption of 1...
Sunday, February 2, 2014 at 9:25pm by Anonymous

chemistry
I work in a pathology lab and need to know what happens when formaldehyde is mixed with chlorine bleach...the chemical formula would be: H2C(OH)2 + NaClO Can anybody out there help me, please?
Monday, February 23, 2009 at 4:40am by fishies

Biology Lab gr 12
hi, i did this lab, from this website and I was wondering if anyone could come up with 3 sources of error, and they can't be human error. Thanks! You are saving me! Seeing as I am not allowed to post to the website :(, search on google liver lab with sand, and it is with a ...
Tuesday, February 26, 2008 at 6:30pm by INSANELY URGENT

physics
A proper lifetime of a certain particle is 100.0ns. a) How long does it live in the lab frame if it moves at V=0.960c? b) How far does it travel in the lab during that time? c) What is the distance travelled in the lab frame according to an observer moving with this particle.
Thursday, March 10, 2011 at 4:54pm by libby

physics
A proper lifetime of a certain particle is 100.0ns. a) How long does it live in the lab frame if it moves at V=0.960c? b) How far does it travel in the lab during that time? c) What is the distance travelled in the lab frame according to an observer moving with this particle.
Thursday, March 10, 2011 at 4:54pm by libby

Chemistry lab
In my lab class I am having to write a lab experiment and preform it tomorrow. It deals with specific heat of unknown metal and density. the first part you have boil water with the metal in it, and then put it in a cup and measure the temp change. I have completed to specific ...
Monday, November 5, 2012 at 1:41pm by Paco

chemistry
I could help but your post is too disjointed and some information seems to be missing. Please repost the problem as it appears in your text. If this is a lab experiment, show how the buffer is made, what it consists of, etc.
Saturday, July 14, 2012 at 6:28pm by DrBob222

chemistry
Thank you so much!!! We do not know the pressure or temperature of the classroom though. This assignment was given to us for homework. We are to figure out the numbers and send them to our teacher then use them to do the lab in class tomorrow. Should we use a temp and pressure...
Tuesday, November 30, 2010 at 3:06pm by Haley

organic chemistry lab pLEASE HELP
I would think the more polar molecule would be kept behind by the silica gel.
Sunday, February 1, 2009 at 10:40pm by DrBob222

Chemistry Help Please!!
How can you precipitate BaCrO4(s) from a solution of barium nitrate and potassium dichromate? I don't get it.. it's a question from a lab we did on chromate-dichromate equilibrium.
Monday, March 5, 2012 at 8:04pm by Chem Student

CHEMISTRY
For a lab, I have to find the experimental values of i (Van T'Hoff factor). so far this is what i have, but it's incorrect. could you please tell me what i'm doing wrong??? thanks. given info: the lab varied the concentration of Mg(NO3)2 the theoretical value of i is 3 the kg ...
Thursday, February 14, 2008 at 8:34pm by Jonathan

CHEMISTRY
In a wet lab you will separate the solid aspirin from the liquid via gravity filtration. What must you do to ensure that you lose minimal product during the filtration? In a wet lab, what sort of safety concerns are valid when using a hot plate for a water bath?
Saturday, June 5, 2010 at 10:18pm by Lynne

biology
You need a 5 microgram glucose/ml aqueous solution, but the lab balance is accurate to only 0.01g (ie., it displays 2 digits to the right of the decimal point) Describe 2 methods by which you could accurately prepare this solution using the lab balance. I don't know what to do...
Wednesday, September 4, 2013 at 2:56pm by alex

chemistry class
i have a Chemistry lab (level 2) final exam soon. our teacher told us that we would have % transmittance problems, can someone show me an examples (maybe from an online test) or a made up one, of what i might expect to find on my chemistry lab final? like an examples of a % ...
Wednesday, December 1, 2010 at 4:53pm by jes

Chemistry
Sorry to post again but I'm really stuck on this one! I'm doing some post lab questions and I'm stuck on one. In lab we performed Tollens test, Fehlings test, and Jones Oxidation to differentiate our unknown between an aldehyde or a ketone. The question I'm stuck on is " older...
Tuesday, July 16, 2013 at 9:52pm by hayley

Chemistry
Did you do this experiment or are you trying to dry lab it? If you did it the questions should be easy to answer. If you are trying to dry lab it (by getting answers) and never doing the experiment, I won't help.
Sunday, February 1, 2009 at 10:45am by DrBo222

11th grade CHEMISTRY TITRATION LAB!
weiirrdd .. i'm in grade 11 with a titration lab due the same day and i had the same questions .. i never handed it in today so i get 5% off . but what did you end up writing for your purpose and hypothesis ?
Sunday, December 14, 2008 at 8:56pm by COOLKID!

11th grade CHEMISTRY TITRATION LAB!
weiirrdd .. i'm in grade 11 with a titration lab due the same day and i had the same questions .. i never handed it in today so i get 5% off . but what did you end up writing for your purpose and hypothesis ?
Sunday, December 14, 2008 at 8:56pm by COOLKID!

Organic Chemistry Lab
For the "ISOLATION OF CHLOROPHYLL AND CAROTENOID PIGMENTS FROM SPINACH" Lab we have to think about how we can correct the following if they were to occur: - A two component mixture containing dicarboxylic acid and a tricarboxylic acid gave only one spot with an Rf value of 0....
Thursday, October 21, 2010 at 1:23pm by Jeanne

organic chemistry lab pLEASE HELP
Which, 9-fluorenol or 9-fluorenone, would have higher Rf value on a silica gel place with 30% acetone/70% hexane as the eluent? Explain.
Sunday, February 1, 2009 at 10:40pm by ladi

chemistry
I am wondering the same thing myself!! Please someone! anyone! answer the question. In order to be more descriptive, is procion red dye a suitable substitue for PAHS for chemsitry lab?
Wednesday, December 2, 2009 at 7:51pm by Hannah

Chemistry labs in highschool
I was curious to know whether it was standardized practice to have labs for chemistry classes in highschool. I personally have never had labs for chemistry in highschool. In my state we have the Regents. You may or may not have heard of this test, but the reason I mention it ...
Thursday, August 23, 2007 at 12:02am by ~christina~

chemistry
a lab experiment calls for 10% acetic acid solution. The lab has only 5% and 15% acetic solutions available. How much of each should be mixed to obtain 10 liters of a 10% solution?
Thursday, December 1, 2011 at 7:46pm by Brandy

Lab
The equations and numbers may be exact; however, the answers obtained may not be the exact answer to the problem. So there will be an absolute and a relative error associated with the lab answer. I don't know what kind of virtual lab you performed; however, one such example ...
Tuesday, June 21, 2011 at 2:21pm by DrBob222

CHemistry Please Help..............LAB
Hey DrBobb i have a question... I am sure what you mean by 4 places... since they are asking for the mass of KIO3 in 100 mL do we not assme its before we add it together with the other solutions?
Sunday, October 19, 2008 at 3:28pm by Sara

Statistics
Juan makes a measurement in a chemistry laboratory and records the result in his lab report. The standard deviation of students' lab measurements is 10 milligrams. Juan repeats the measurement 3 times and records the mean (x-bar) of his 3 measurements. a) What is the standard ...
Tuesday, February 1, 2011 at 1:55am by Emily

Organic Chemistry
Larry, Nataly, Maria, et al. These look like pre-lab questions to an experiment. All of this is discussed in your notes, in your text, or in your lab manual. Posting here will not get them answered freebie style. If you pose specific questions, tell us what you think, and/or ...
Thursday, April 29, 2010 at 1:42pm by DrBob222

Chemistry
You apparently refer to a lab or a question you are to answer BUT there isn't enough information for us to know what you are doing. We don't have access to your syllabus, you texts, your notes, etc. Please provide the complete question.
Tuesday, March 31, 2009 at 7:29am by DrBob222

PLEASE RESPOND!!
Question: hi, i did this lab, from this website and I was wondering if anyone could come up with 3 sources of error, and they can't be human error. Thanks! You are saving me! Seeing as I am not allowed to post to the website :(, search on google liver lab with sand, and it is ...
Wednesday, February 27, 2008 at 5:02pm by Rory

PHYSICS
Please clarify. Is this on a lab? Provide details please.
Monday, July 19, 2010 at 10:38pm by bobpursley

Chemistry
Currently studying for an lab exam. Just have a few question about a typical Iodine Clock reaction lab. In an typical Iodine Clock reaction lab what would be the state of effect of an increase in the initial concentration of persulfate ion (S2O3 2-) and the increase in the ...
Friday, February 15, 2013 at 12:47pm by AhmadM

Chemistry
Part I: Lab Insert completed data tables for each part of the lab. Be sure that the data tables are organized and include units when necessary. Melting Point (4 points) Conductivity (4 points)
Saturday, November 29, 2008 at 8:05pm by vanessa

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