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What's the dilution factor to get a 0.02mM solution from a 0.1mM solution?

What's the dilution factor to get a 0.02mM solution from a 0.1mM solution?

Using a 0.4mL aliquot of the 0.1mM solution, how much water is needed to dilute the solution to 0.02mM? Using what dilution factor?

zues1000   315   1 Reply

NURGirl

500mg of Mg corresponds to how many mmol of Mg2+ and of MgO?

500mg of Mg corresponds to how many mmol of Mg2+ and of MgO?

Hello, this is a question in my pre-lab that I was hoping you could help me with.
500mg of Mg corresponds to how many mmol of Mg2+ and of MgO?
Also,
MgO reacts with 2 equivalents of Acid to produce Mg2+ and H2O.
The volume of 1MHCl needed to dissolve

zuckalemon   315   1 Reply

smile_292

how do i solve this chemistry molarity question?

how do i solve this chemistry molarity question?

In a chemistry lab, Preparing Solutions and Molarity a question states:

What is the molarity of a solution that contains 4.13 g of magnesium bromide. MgBr2, in 0.845 L of solution?

how do i find the answer to this?

__Aycee   315   1 Reply

FF/EMT

what happens to the pH of a buffer solution upon dilution ?

what happens to the pH of a buffer solution upon dilution ?

Also, what happens tp the buffer capacity upon dilution ?.

leelo   316   1 Reply

JU

How do I become a Genetics Laboratory Technician?

How do I become a Genetics Laboratory Technician?

How do I become a Genetics Laboratory Technician...what kind of schools should I look at?  I live in Massachusetts.  Thanks in advance for answering!  

Datnigerian   316   1 Reply

buddyl91

sonicator

sonicator

Why do we put headphones for the sonicator?

bobaholic   316   1 Reply

flipinized007

What volume of a bacterial culture would you have to add to 60mL of diluent to make a 1/15 dilution?

What volume of a bacterial culture would you have to add to 60mL of diluent to make a 1/15 dilution?

What volume of a bacterial culture would you have to add to 60mL of diluent to make a 1/15 dilution?

Please show how you got it to because I can't figure it out. The answer is supposed to be 4.3mL

michi   316   1 Reply

michn

any ideas?????we have an exhibition in school i have to do an interesting and fun physic experiment what shoul?

any ideas?????we have an exhibition in school i have to do an interesting and fun physic experiment what shoul?

the idea should be cheap and easy to do please helpppppppppp

Rima5879   316   1 Reply

tomtom1

Why do you need to prepare dilutions of your unknown samples prior to preparing bradford reaction?

Why do you need to prepare dilutions of your unknown samples prior to preparing bradford reaction?

Also, why make more than one dilution for each sample?
Kind of lost here so any help is appreciated.

nursing101   317   1 Reply

irina

if all h2o(g) in atmos. (1% by V) condensed into h2o (l) and converted into energy, how long would it last?

if all h2o(g) in atmos. (1% by V) condensed into h2o (l) and converted into energy, how long would it last?

FULL QUESTION:
if all the H2O  in the atmosphere (assume it is 1% by volume) suddenly condensed to H2O , and all the enthalpy of this process was captured and converted to electrical energy, how long would this energy power the City of Ottawa... HEL

ilaeoc   318   1 Reply

iknowdoyou3

What science experiment can be done with a vehicle?

What science experiment can be done with a vehicle?

I have to do some kind of science experiment and have a Toyota 4Runner. Does anyone have any suggestions for an advanced level high school science experiment?

nursing101   321   3 Replies

nursing2012

How do I find molarity by dilution?

How do I find molarity by dilution?

How would i find molarities by knowing dilution...
Example: (How much concentrated 18 M sulfuric acid is needed to prepare 250 mL of a 6.0 M solution?)

rimah   323   2 Replies

jtwalkee

In the results of a chemistry lab, do you want the percent difference between calculated and experimental?

In the results of a chemistry lab, do you want the percent difference between calculated and experimental?

In the results of a chemistry lab, do you want the percent difference between calculated and experimental values to be high (close to 100) or low?

We have done percent error before and I wasn't sure if this was the same thing or if it's showing you

mickey16   324   1 Reply

nursing59

What exactly is a Med Tech? Or Medical Laboratory Scientist?

What exactly is a Med Tech? Or Medical Laboratory Scientist?

I am a nursing student (sophomore), but I no longer is interested in pursuing that path, now one of my friends told me about being a Med Tech or an MLS (what is the difference? isnt it the same thing?) what exactly is it? and what is a Clinical Labor

buddysp_vn   324   1 Reply

nursemula

What qualification before taking the State of California Clinical Laboratory Scientist license?

What qualification before taking the State of California Clinical Laboratory Scientist license?

What degree needed to taking the State of California Clinical Laboratory Scientist license?
How to prepare the exam for the State of California Clinical Laboratory Scientist license?

ritznca   325   1 Reply

nursenurse

Time for lab results?

Time for lab results?

For those that work in large labratories, cancer centers or hospitals, how long does it take to receive results for immuno-fixation electrophoresis? I may just be impatient, and I would like to see if I need to just have patience! My patients constan

terious   325   1 Reply

terminator

How do chemical reactions and dilution of cleaning products work?

How do chemical reactions and dilution of cleaning products work?

I'm doing a science experiment, and I need to go more in depth for the analysis. Results showed that the more water added to 1 oz of an all purpose cleaning the harder it was to clean the food stain, so I know that water or dilution weakens the chemi

Rizzlefritz   326   1 Reply

toney32

Why did i fail Chemistry first time and get A 2nd time?

Why did i fail Chemistry first time and get A 2nd time?

I took General Chemistry in college. I havnt seen chemistry since probably 10th grade in high school so thats about 3 years later. I failed the class. I put the same amount of time the 2nd time i took and i got an A. Its not like i didint understand

leeleez   327   1 Reply

Nurealicious

What instruments use Polarized Light Microscopy?

What instruments use Polarized Light Microscopy?

I'm just confused with which instruments use Polarized Light Microscopy? Thank you so much!!!

nurazije   327   1 Reply

o1893220

How do I write this on my resume?

How do I write this on my resume?

As a student, I used atomic force microscopy and optical microscopy to take pictures which were published with an article in a scientific journal.  What is a concise way I could list this on my resume?  Would it be right to list my position as 'micro

FezOne2   328   2 Replies

smiley14

What exactly is a life science experiment? and does the following count as one?

What exactly is a life science experiment? and does the following count as one?

For my biology class, I am required to do a life science experiment and i was wondering what exactly would be categorized in that. Also I was thinking of testing how ethylene can be controlled and produced and all when it comes to ripening fruit. Wou

|R2r|   329   1 Reply

julesh22

TITRATION HELP, lab report!?

TITRATION HELP, lab report!?

Im writing a lab report and im stuck on how to present my results and findings ? anyone experienced in this and could give me any tips ? I have done a table with the initial burette reading, final burette reading and the volume of acid used. Im stuck

tomtom1   329   1 Reply

leemons

What kind of cell is an Elodea Leaf?

What kind of cell is an Elodea Leaf?

I Have a science project, so what kind of cell is an Elodea Leaf?

micike   330   1 Reply

NursingChick

How can 200mL of CO2 be released in this lab?

How can 200mL of CO2 be released in this lab?

GIVENS:
Unknown concentration of HCL
0.1M of NaOH
Baking Powder (NaHCO3)
Balance, Beakers, Burettes, Phenophthalein.

The equation is: HCL + NaHCO3 NaCl + H2O + CO2

I have to release 200 mL of CO2 into the atmosphere to 'raise the earth's temper

iksun1002   330   1 Reply

nurisar

how would i convert a 1:3 dilution to a dilution factor expressed with base of 10?

how would i convert a 1:3 dilution to a dilution factor expressed with base of 10?

Sorry, I know it's a stupid question, but I've never been really good at this dilution stuff. So I have a dilution of 1:3 (of OVA to serum) and I want to convert it to a dilution factor, expressed with a base of 10, how would I do that? I just want t

tomtom1234   332   1 Reply

darkwind

How do I explain lab observations in terms of equilibrium?

How do I explain lab observations in terms of equilibrium?

I did the equilibrium lab and I was asked for my observations. After, I was also asked to describe what happened in terms of equilibrium. What does that mean and what is it asking me for?

I was given

Cu(OH)2(S)  Cu+2  +  2OH-

and asked to desc

BUGG123   333   3 Replies

smnam

How important is the second organic chemistry lab to med schools?

How important is the second organic chemistry lab to med schools?

I took the lecture, but not the lab.

Bugbaja   333   1 Reply

Datchile

How do you make a serial dilution?

How do you make a serial dilution?

How do you do a serial dilution? What is the protocol for one?If you are given a 3.5% solution how u make 1.75?

RJ   333   2 Replies

smokebomb13

How to do serial dilution problems?

How to do serial dilution problems?

1.You are given a 12% salt solution, explain how you would further make up solutions of 4% and 2% using serial dilution.

2.You are given a 10mol dm^-3 glucose solution, explain how you would further make up solutions of 1 mol dm^-3 ,0.5mol dm^-3, 0.

smileylady   333   1 Reply

leepbcc

Please help with this enzyme lab!?

Please help with this enzyme lab!?

My experiement is "The effect of substrate concentration on enzyme"
My substrate is hydrogen peroxide and my enzymes are potatoes. Our teacher expects us to figure out our own procedure and everything!
Do you mind making me a procedure, thanks!

Smithpatrick   333   1 Reply

ilikepoop

What methods in laboratory do they use to identify which antibiotic may be of value in treating a particular?

What methods in laboratory do they use to identify which antibiotic may be of value in treating a particular?

What methods in laboratories do they use to identify which antibiotic may be of value in treating a particular organism?

nursenor   334   2 Replies

rivatayah

What is the best plant to use when conducting an experiment indoors?

What is the best plant to use when conducting an experiment indoors?

Hello, I am conducting an experiment for my science class and my experiment is "Does Microwaved Water Effect Plant Growth?" I would like to know what plant would be best to use. By the way, the experiment will be done indoors. PLEASE HELP!!!

rivatayah   334   1 Reply

nursing1

How is stem cell research performed in a laboratory?

How is stem cell research performed in a laboratory?

How is stem cell research -embryonic and adult stem cell research performed in a laboratory?

RIVAS3   334   1 Reply

juju2744

Titration lab questions?

Titration lab questions?

I did an experiment in which I titrated vinegar by putting 2ml of vinegar into an erlenmeyer flask then adding approximately 25ml of distilled water and 4 drops of phenolphalein to the flask and then swirling it. I titrated the vinegar by adding fixe

nzegbuna.ify   336   1 Reply

leenamu

difference b/w iodometric n iodimetric reactions??anyone!?

difference b/w iodometric n iodimetric reactions??anyone!?

my teacher hinted it has something to do with the starch test. iodine (tincture iodine the end product),its a subject of class 10 lab preparations......inorganic chemistry chemical equilibrium ...pls help spot the difference .

__Aycee   337   1 Reply

tonyagodsey

Does anyone know the lab test results for S. cholerasuis and P. mirabilis? Plz help me...10 points for best!?

Does anyone know the lab test results for S. cholerasuis and P. mirabilis? Plz help me...10 points for best!?

I do not have the Bergey's manual book where it shows the results for it gelatin hydrolysis, glucose fermentation, urea, nitrate, h2s production, indole and oxidase.

tommyboy12   337   1 Reply

juliomarquez8

Despite the fact that fluorescein fluoresces green, the digital CCD cameras used for capturing ...

Despite the fact that fluorescein fluoresces green, the digital CCD cameras used for capturing ...

1.Despite the fact that fluorescein fluoresces green, the digital CCD cameras used for capturing fluorescent microscopy images are all grayscale cameras (i.e., black and white). Why is it OK to use a monochrome digital camera to capture fluorescent i

jtwalls   337   1 Reply

nurnur

What lab would demonstrate the law of conservation of matter?

What lab would demonstrate the law of conservation of matter?

I need a little help with this and i don't know what lab would demonstrate that. I need a procedure to, but Im sure I can come up with that. I just need some examples of labs. Thanks!!! Much Appreciated!

nursingishard   337   1 Reply

nursing59

How to solve AP chemistry question?

How to solve AP chemistry question?

A solution of hydochloric acid has a density of 1.15 grams per milliliter and is 30.0% by weight HCl.
(a) what is the molarity of this solution of HCl?
(b) What volume of this solution ahouls be taken in order to prepare 5.0 liters of 20.0 molar hydr

nzp123   337   2 Replies

tom_andrews

I need some help on this chemistry lab, please?

I need some help on this chemistry lab, please?

I obtained a calorimeter and added 10mLs of 6.00M sulfuric acid.  I  obtained a burette and added 50mLs of 6.00M sodium hydroxide.  I collected the  pH meter and titration data (This lab was done on the computer).  I Started the titration by adding N

rimrod75   337   1 Reply

jtwalls