Search: Lab Math-Osmolarity

Number of results: 188,188

Lab Math-Osmolarity
I know this is easy but it's been a while for me. Calculate the osmolarity of the following: -25mM CaCl2 -100mg/dl Glucose -0.20 M MgSo4 which is 50% dissociated Thank you!!!
Sunday, March 11, 2012 at 7:00pm by Morgan M

chem
Osmolarity (Osm) is the molar concentration of the particles-molecules and/or ions-in a solution. In physiological solutions, 5 \% ({\rm m/v}) glucose ({\rm C}_{6}{\rm H}_{12}{\rm O}_{6}) and 0.9 \% ({\rm m/v}) {\rm NaCl}, the osmolarity must be the same as for the blood, ...
Monday, April 11, 2011 at 11:58pm by Anonymous100

physiology
Assume that fluid enters the distal convoluted tubule with an osmolarity of 100 mOsm and that the maximum osmolarity of medullary interstitial fluid is 1100 mOsm. As plasma ADH levels rise, the osmolarity of the urine a) approaches 300 mOsm, the normal osmolarity of plasma b) ...
Monday, December 11, 2006 at 4:09am by pbear

College Biology
The RBC osmolarity of a patient is 300 mOsm/L and is given 1L of distilled water and starts with 3L of plasma. What is the plasma osmolarity after infusion mixes with plasma but before water enters her RBC? Once infused water equilibrated between plasma nad RBA what is her ...
Sunday, January 30, 2011 at 12:24pm by Anonymous

Physiology
Osmolarity measures the number of particles in a solution. For ionized compounds, each ion counts as one. For example, NaCl=Na+ + Cl- counts as 2 particles So the total osmolarity =0.1*1 + 0.2*2 + 0.5*3 =2 osm/l.
Monday, November 29, 2010 at 3:42pm by MathMate

physiology
which of the following is greater? a) the amount of ADH released when blood osmolarity is high b) the amount of ADH released when blood osmolarity is low
Monday, December 11, 2006 at 4:15am by pbear

Biology
http://chemistry.about.com/od/solutionsmixtures/a/Osmolarity-And-Osmolality.htm
Wednesday, April 25, 2012 at 7:36pm by Ms. Sue

biology
Try here: http://search.yahoo.com/search?fr=mcafee&p=an+experiment+to+determine+the+osmolarity+in+an+egg Sra
Sunday, October 24, 2010 at 9:22pm by SraJMcGin

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

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

Biology
What is the difference between osmolality and osmolarity?
Wednesday, April 25, 2012 at 7:36pm by Ginger

chemistry
what is the osmolarity of a .20 M solution of Na3PO4?
Tuesday, October 19, 2010 at 12:12am by Dana

chemistry
what is the osmolarity of 0.35M KBr? how to set it up.
Friday, November 25, 2011 at 5:12pm by maria

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
what is the osmolarity of a 1.0M solution of ethyl alcohol (C2H6O) in water?
Saturday, April 9, 2011 at 11:51pm by kathy

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&...
Monday, September 3, 2007 at 1:31pm by ~christina~

biology
How would you design an experiment to determine the osmolarity (amount of water) in an egg?
Sunday, October 24, 2010 at 9:22pm by Jannet

chemistry
Considering a 1.0M of each solution, which has the greatest osmolarity? 1. FeCl3 2. K2O 3. HCl 4. HC2H3O2
Wednesday, May 11, 2011 at 2:39am by Gina

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

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

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 ...
Sunday, November 2, 2008 at 7:12pm by Roger

Organic Chemistry
how many grams of ZnCl2 are needed to prepare 250 ml of an aqueous solution with an osmolarity equal to 0.300?
Tuesday, March 6, 2012 at 8:51pm by Jules

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

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

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

chemistry
A pickling solution is prepared by dissolving 278 g of NaCl in 4-1 L of water. Calculate the osmolarity of the solution
Tuesday, March 8, 2011 at 8:03pm by bob

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 ...
Monday, February 18, 2013 at 7:48pm by a Canadian

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 ...
Tuesday, June 21, 2011 at 2:21pm by DrBob222

Chem
Doing it in the lab IS one way of solving some of these problems and lab work is quite important; however, one must ALSO know how to calculate the answers. A good chemist must know how to do both; that is, must be good in the lab as well as in theory. In this case, the problem...
Monday, October 29, 2007 at 4:00am by DrBob222

Biology Lab
What tense do you use when writing a discussion in a formal lab?
Friday, October 30, 2009 at 6:53pm by Moi

phsyics
hi, has anyone done the lab on 1.2 lab : constant velocity? it's about ticker tape. thanks
Wednesday, March 11, 2009 at 6:26pm by ashley

science
Has anyone written up a Lab for the Sponge Capsule lab? I am trying to do a graph
Sunday, September 9, 2012 at 7:39pm by Gen

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

Lab
When doing a virtual lab everything is exact, but why would they still ask for absolute and relative errors?
Tuesday, June 21, 2011 at 2:21pm by Diana

bio lab
This is a lab question that should have experimental data to go along with it.
Thursday, March 13, 2008 at 12:01am by Ast

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

Sources of error for lab
It is hard for us to know how the lab was accomplished. Was the ramp straight, or bowed?
Saturday, September 15, 2007 at 7:39pm by bobpursley

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 (webwork)
D is correct - based on the first paragraph of the lab instructions for week 2.
Saturday, April 3, 2010 at 12:02am by UCI student 2

science(chem)
Oh...okay but the lab question was actually a fill in sheet for the actual lab when I do it. Thanks Dr.Bob =)
Monday, September 3, 2007 at 12:11am by ~christina~

physiology
a One of the major physiological factors that triggers thirst is: a) a rise in plasma osmolarity b) a dry mouth from high temperatures c) becoming overly agitated d) drinking caffeinated beverages a
Monday, December 11, 2006 at 4:23am by sheila

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 ...
Monday, January 11, 2010 at 7:21pm by CL

chemistry
20.2 g of potassium phosphate is dissolved into 650 ml of H2O yes i so confuse i need to know what property is if is morality , osmolarity , boiling point or if are another property? thank you.
Monday, November 21, 2011 at 4:22pm by maria

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

Science (Lab)
The first sentence i made a mistake i mean So I have to DO this lab for sci sorry about that
Saturday, October 8, 2011 at 2:27pm by Laruen

physics
I did a lab on the potential difference and how it relates to the number of batteries connected. What would be a good title for my lab?
Tuesday, April 15, 2008 at 5:57pm by Tom

Physics
I just did a lab on potential difference/voltage, resistance, and current. What would be good title for my lab? Thank You.
Tuesday, April 8, 2008 at 8:38pm by Tom

LAB!!!!!
I had to do the same exact lab...
Monday, June 19, 2006 at 4:17pm by asagga

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 ...
Sunday, September 20, 2009 at 11:36pm by Emily

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 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

Lab
I did a virtual lab on acceleration on gravity on earth. That number is 9.81 m/s ^2. I don't understand the error that could have came out of this
Tuesday, June 21, 2011 at 2:21pm by Diana

Organic Chemistry
how many grams of ZnCl2 are needed to prepare 250 ml of an aqueous solution with an osmolarity equal to 0.300 osmol? I posted this question a few minutes ago, but forgot to add the last part of the sentence. Thanks!
Tuesday, March 6, 2012 at 8:56pm by Jules

chemistry
determine the mole mass of aluminum chloride. moles AlCl3= 4.765/molmass Molarity= moles/.250 Osmolarity= 4 times molarity
Wednesday, October 5, 2011 at 8:01pm by bobpursley

to Math Mate
Kelly, Don't worry, I didn't forget about you. I will get back to you, hoping you would be reading up on simple harmonic motion in the mean time. It is a lab, and you will have to write it up. The better you understand the subject matter, the faster you will be able to...
Monday, June 1, 2009 at 6:04pm by MathMate

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...
Thursday, December 18, 2008 at 11:48pm by Bob

Organic Chemistry
An osmolarity of 0.3 osm = 0.1M ZnCl2 (since there are three particles in a molecule of ZnCl2). You wnat how many mole? That is M x L = ? The moles ZnCl2 = grams ZnCl2/molar mass.
Tuesday, March 6, 2012 at 8:51pm by DrBob222

hcs 577
Evidentally you haven't been involved in the health care system. You go to a doctor, Dr. A. Before you see Dr. A, a medical records clerk scans your insurance card and completes the necessary paper work. Dr. A examines you. Dr. A's nurse draws blood and sends it Lab X ...
Monday, September 13, 2010 at 8:01pm by Ms. Sue

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

algebra
My science class is pretty small. There are just 18 students in the class. My teacher, Mr. Burnett, has an unusual system for picking lab partners. He has given each student a number from 1 to 18, and on lab days, he pulls two numbers out of a bag to match people up. During ...
Tuesday, November 1, 2011 at 12:22pm by Linda

chemistry
50 g of NaCL is dissolved into 800 ml H2O. i need to know if is molarity, g/equivalent, freezing point depression, boiling point elevation or osmolarity. nad how to resolve please give me a hand
Monday, November 21, 2011 at 3:34pm by chelsy

Physics
In the frame of reference of the slower particle (as seen in the lab) the speed of the other particle is +0.920c. To get the lab speed of the faster particle, you have to do a transformation back to lab coordinates, with a relative velocity of 0.580c Th relativistic formula ...
Sunday, April 13, 2008 at 12:42pm by drwls

FACS - Reading Assignment (Q2) Check
3. Explain - Why are foods-lab tasks moved from one person to another? Answer - The reason why are foods-lab tasks moved from one person to another is because when team members work together to complete tasks in the school foods lab, the whole group benefits. am i correct?????
Sunday, April 22, 2012 at 4:32pm by Laruen

Conductivity
hey UCI! a. HCl b. HNO3 c. NaOh d. K2CO3, also in the lab we did. it all depends on the cation (k, li, and na) which one has the highest mass e. AlCl3 (that was in the lab we did.)
Wednesday, January 12, 2011 at 9:47pm by anonymous

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 ...
Monday, February 6, 2012 at 9:48pm by Cicilia

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

Psyics Lab ASAP
I have a lab where for accuracy I got -.32% and for precision I got 100.6%? What does that mean?
Tuesday, August 28, 2007 at 8:22pm by Jules

biology
(Which of the following would least likely induce thirst) a)Dry pharynx b)Decrease blood volume c)decrease blood pressure d)decreased blood osmolarity
Friday, July 22, 2011 at 10:43am by lol

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 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

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

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
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

SCI LAB
In my science lab we tested anaerobic vs aerobic respiration. for the anaerobic we covered the test tubes with a plastic film. what is the term for that?
Sunday, March 9, 2008 at 10:03pm by Quick question

biochemistry with more info that was needed
these are pre-lab questions, so i haven't been given a ph yet. These are questions due before lab starts.
Sunday, January 27, 2008 at 5:35pm by stew

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

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
Calculate the osmolarity of a 2.0 × 10-3 M Na3PO4 solution. Na3PO4 is an ionic compound and produces an electrolytic solution.
Saturday, October 29, 2011 at 1:29pm by Chemistry Chick

algebra
A research lab is planning to explore the North Pole. Ten members of the lab each have a dog team. There are 56 dogs in all. If there are only 7- and 5-dog teams, how many of each will there be
Wednesday, March 23, 2011 at 3:39pm by ASAP PLEASE

physics
for intro in a lab report do u have to write the relevance to the world? ( if yes where would it go , after purpose?)and what would be a good hypothesis in a lab for acceleration due to gravity?
Sunday, October 11, 2009 at 7:53pm by just wondering

Physics Lab
If Fc is the centripetal force, it is equal to mV^2/R, NOT mg. The Fc vs Vt^2 graph should be a straight line. I don't know enough about your lab experiment to help more than that.
Thursday, December 18, 2008 at 11:48pm by drwls

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
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
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

Sources of error for lab
when doing a chromotography lab what are the sorces of error
Saturday, September 15, 2007 at 7:39pm by Anonymous

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
a solution was perpared by dissolving 4.765 g of AlCl3 in enough water to give 250 mL of AlCl3? a. how do you calculate the molarity of the solution b. how do you calculate the osmolarity of the solution
Wednesday, October 5, 2011 at 8:01pm by Anonymous

math
In your biology class, your final grade is based on several things: a lab score, scores on two major tests, and your score on the final exam. There are 100 points available for each score. However, the lab score is worth 16% of your total grade, each major test is worth 21%, ...
Sunday, June 3, 2012 at 1:39pm by Ashley

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

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

ENGLISH
Hello, what is the format of "affiliation" in a lab report? A lab report? Are you sure this isn't a science assignment?? http://www.google.com/search?hl=en&q=affiliation+lab+report&btnG=Google+Search ??
Tuesday, December 5, 2006 at 9:58am by Kate

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 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

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

math
Wow, messy I used http://www.math.hawaii.edu/lab/241/online-grapher.shtml and the function sin(2*x^3) - x to get answers of x=0 and x= appr. 0.75 and x = appr 0.97 I further fine-tuned the last two by trial and error and got x = 0.7523 to get LS = .7523 RS = .75229 , so that ...
Wednesday, April 6, 2011 at 9:37am by Reiny

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