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Titrate

titrate

A chemistry lab technique used to find out the concentration of a substance (or concentrations of substances) by slowly putting in a known amount of another substance which can neutralise the effects of the unknown substance. A colour indicator (which reacts with neither) is also included, the colour of the solution changes when all of the unknown substance has been neutralised. The unknown is then inferred by looking at the total amount of known substance it took to neutralise all of it.


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Re: CHEMISTRY MOLARITY QUESTION

... have been H2SO4 in which case you would have: H2SO4 + 2NaOH ----> Na2SO4 + 2H2O From the equation above you can see that 1 mole of acid would titrate with 2 mole base. We know this because of the 2 in front of the NaOH in other words, if you had spilled one mole of H2SO4 on your skin, you ...

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by MichaelXY
Tue Dec 02, 2008 8:19 am
 
Forum: General Discussion
Topic: CHEMISTRY MOLARITY QUESTION
Replies: 4
Views: 944

CHEMISTRY MOLARITY QUESTION

... is the question: A solution of HCL is prepared by diluting 0.500L of HCL solution to 6.0 L. If 10.0 mL of the diluted HCL solution is required to titrate 20.0mL of 0.25 mol/L NaOH solution, then what is the concentration of the undiluted HCL solution? This is what I thought I could do: Find the ...

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by Darwin420
Mon Dec 01, 2008 9:34 pm
 
Forum: General Discussion
Topic: CHEMISTRY MOLARITY QUESTION
Replies: 4
Views: 944

MES Buffer

Making MES is the same as making most any buffer. Essentially you titrate a fixed amount of MES in either its acid or basic form. For MES the starting point is usually the free acid which you titrate with NaOH to the correct pH. You need to decide what concentration ...

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by blcr11
Fri Nov 21, 2008 2:14 pm
 
Forum: General Discussion
Topic: MES Buffer
Replies: 1
Views: 4274

Re: Preparing a Buffer Solution

... 2-3 liters of MOPS solution under a pH meter and add 10 M NaOH dropwise until you get to pH 7.8. If you should accidently overdo it, you can back-titrate with the 10 M solution of HCl. Once you have your final pH, dilute your pH-adjusted solution to a final volume of 4 L.

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by blcr11
Sun Sep 07, 2008 10:40 am
 
Forum: Molecular Biology
Topic: Preparing a Buffer Solution
Replies: 1
Views: 1877

which fruit has the most vitamin C?

... You can probably just mash up a weighed amount of fruit pulp with a given volume of water and then either filter or spin down any solids and titrate a standard volume of extract with your standardized iodometric reagent. I'm not sure how you can easily control for the different mositure content ...

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by loveangel
Sun Aug 19, 2007 9:41 am
 
Forum: Botany Discussion
Topic: which fruit has the most vitamin C?
Replies: 13
Views: 6093
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