Tuesday, March 5, 2013

Grtgr

Water of Crystallization

Research Question: - To determine the rate of molecules of water system of crystallization in oxalic
pungent

Hypothesis: - For takeing the number of molecules of water of crystallization in oxalic acid we should know the force play of the oxalic acid. When we have the strength of the oxalic acid we can find bulge the molar majority of the oxalic acid and later we can find out the number of molecules of water. The number of molecules of water of crystallization in oxalic acid should be around 2 because molar mass of oxalic acid (dehydrate) is 126.07g/mol.

Variables:
* Independent variables -
1. chiliad of atomic number 11 hydroxide

* Dependent variables -
2. Molarity of oxalic acid
3. marrow of oxalic acid used

* Controlled variables -
4. Amount of the sodium hydroxide
5. Amount of phenolphthalein used
6. tool
a. Same burette
b. Same pipette
c.

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Same type of the conic flask


Material required: -
* Burette (50 ml ±0.05)
* Pipette (50 ml ±0.05)
* Conical flask (150ml)-2
* Clamp stand

Method: -

1. Prepare 0.1 M NaOH solution and pipette 20 ml of it in a conical flask (150 ml).
2. Titrate 20 ml of it against oxalic acid solution of given strength using phenolphthalein solution as indicator.
3. Repeat the experiment at least 3 clock to discombobulate 2 concordant readings.
4. Record the readings in the control board 1
5. Find morality of oxalic using the formulae

M1×V1M2×V2 = n1n2



Data Collection: -

angle of the sodium hydroxide: - 1 g
M2- Molarity of sodium hydroxide: - 0.1 M
M1 - Molarity of oxalic acid: x (unknown)
V1- Amount of oxalic acid used: Burette reading
V2- Amount of sodium...If you want to get a full essay, order it on our website: Orderessay



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