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The purpose of the ammonium acetate in the gravimetric determination of aluminium as oxinate is as a buffer. As more ammonium acetate is added, this caused the complex of the aluminium in the solution to precipitate after the yellow supernatant was formed. Excess ammonium acetate is needed to ensure all of the crystals precipitated out completely.

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Q: What the purpose of the ammonium acetate in the gravimetric determination of aluminum as oxinate?
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Aluminum plus ammonium acetate plus 8-hydroxyquinoline?

when 8-hydroxyquinoline and aluminum reacts a yellow ppt is formed( aluminum-8-hydroxyquinolate) .....but bot sure bout d ammonium acetate. I kno the ammonium acetate helps the helps the precipitate to form.....hope someone can fill the blanks...


What is NH4CH3COO?

This chemical formula is for ammonium acetate.


What is the chemical formula of ammonium acetate NH4C2H3O2?

According to Wikipedia, the formula for ammonium acetate is CH3COONH4 (or C2H4O2.NH3 or C2H7NO2). According to the National Institute of Standards and Technology (NIST) the formula for ammonium acetate is C2H7NO2.


How do you adjust pH of ammonium acetate solution to?

the pH of ammonium acetate buffer can be adjusted with glacial acetic acid (concentrate or diluted )


Is ammonium acetate a strong or weak electrolyte?

Ammonium is a weak acid.


Is Ammonium acetate and Sodium acetate the same thing?

No, Sodium acetate (NaCH3CO2) contains the positive ion of sodium (Na+), a highly reactive metal. It is the product of acetic acid (CH3CO2H) reacting with sodium hydroxide (NaOH). Sodium acetate is mildly basic. Ammonium acetate (NH4CH3CO2H) contains the ammonium ion (NH4+) a polyatomic ion composed of the nonmetal nitrogen and hydrogen. It is the product of ammonia (NH3) reacting with acetic acid. Ammonium acetate is neutral.


Is ammonium acetate organic or inorganic?

it is organic


What is the name of LiC2H3O2?

lead acetate


How do you make 50mM ammonium acetate solution?

One mole of ammonium acetate is equal to 77.08g (this is the formula weight, FW, of ammonium acetate, which can be found on the side of the bottle). Another way of representing this is 77.08/mol (so, in one mole of ammonium acetate, there are 77.08grams of ammonium acetate).We have to use the FW value to calculate molarity (moles of solute per L of solvent).I am not sure what volume of the 50mM solution is desired, so I will assume that you need 1 L.50mM is equal to 50milli-moles of solute/1 L of solvent, which is the same as 0.05moles/L. This is what the math looks like:77.08g/mol ammonium acetate x 0.05mol/L = 3.854g/LSo, to make a 50mM solution of ammonium acetate in 1L of water, you will need to dissolve 3.854g of ammonium acetate into 1L of water.


How do you prepare 100mM ammonium acetate?

To prepare the buffer using solid form reagents, prepare a 0.1 M ammonium acetate solution by dissolving 7.7 g ammonium acetate in a 1000 ml water. Adjust 1 L of this solution to pH 4.5 by adding acetic acid (about 8 ml) and 5 ml of 1 M p-TSA (equivalent to 5 mM p-TSA).


How many grams of ammonium acetate are in 1 liter?

At 20 degrees Centigrade, Ammonium Acetate has a density of 1.17 g/cm3. A liter contains 1000 cm3. Therefore the weight of a liter of Ammonium Acetate at 20 degrees Centigrade is 1.17 * 1000 = 1170 grams.


Is ammonium acetate a polar or non polar?

POLAR