Why does monoammonium phosphate (MAP) have 52% of …
2019年3月19日 · The formula of monoammonium phosphate (MAP) is $\\ce{NH4H2PO4}$. Manufacturers say that MAP has 10% of nitrogen (N) and 52% of phosphorus (P). However, its molecular mass is 115 u and the atomic mas...
Why is (tri-)ammonium phosphate ( (NH4)3PO4) so unstable?
2018年5月3日 · The hydroxide ions, being a stronger base than ammonia, deprotonates the ammonium ions. The more strongly basic hydroxide displaces the weaker ammonia base. The same thing can happen in solid ammonium salts. Phosphate ion, with a conjugate acid $\pu{pK_a}$ around $12$, is a stronger base than ammonia whose conjugate-acid …
inorganic chemistry - The formula of ammonium …
2024年3月12日 · It is written in my qualitative chemistry textbook that phosphate could be tested by introducing phosphate, nitric acid and ammonium molybdate which gives (NH 4) 3 H 4 [P(Mo 2 O 7) 6]. I found out in the qualitative chemistry book of professor Nordman Joseph that the yellow precipitate would be widely accepted as (NH 4 ) 3 [P(Mo 3 O 10 ) 4 ].
Concentration of ammonium phosphate if dissolved in water
2017年11月19日 · If $\pu{2.54 mg}$ of ammonium phosphate is dissolved in enough water to make $\pu{300 mL}$ of the solution, what is the molar concentration of the solution? The answer is $\pu{5.68e-5 mol L-1}$. However, the answer I got using dimensional analysis was wrong:
Gravimetric analysis - Chemistry Stack Exchange
2019年4月11日 · In a gravimetric determination of phosphorus an aqueous solution of dihydrogen phosphate ion is treated with the mixture of ammonium and magnesium ions to precipitate magnesium Ammonium Phosphate. This is heated and decomposed to magnesium pyrophosphate which is weighed. A solution of $\ce{NaH2PO4}$ yielded 1.054 gram of …
Yellow precipitate in the presence of ammonium molybdate?
The sink mostly contained diluted $\ce{H2SO4}$ and $\ce{HNO3}$ along with small quantities of $\ce{AgNO3, BaCl2, NH4OH}$, lead acetate and ammonium molybdate. All of these would mostly be in small quantities since I had rinsed the sink with water before emptying the test-tube.
everyday chemistry - Can I use the mono ammonium phosphate …
I recently opened up a old decompressed fire extinguisher out of curiosity. After some research I discovered that the dry powder inside, mono ammonium phosphate, can be used to make beautiful crystals. However, I found this powder to be extremely hydrophobic and could never get its dissolve in water at all. I mean this stuff is amazingly ...
Reaction of sulphuric acid with ammonium hydrogen phosphate
2022年11月18日 · $\begingroup$ Thank you, that’s very helpful :). From your explanation, I conclude that if the objective is to get P04 3- (soluble form of phosphate ion in acidic PH for the crop) from DAP, then a higher concentration of H2S04 should be used than an equal moles of both, and the reaction should be carried out in water. $\endgroup$
Calculating the pH of a ammonium hydrogen sulfate solution
2017年12月17日 · I am attempting to complete a question in which I need to use an ICE table to calculate the pH of a $\pu{2.61 mol L-1}$ $\ce{NH4HSO4}$ (ammonium hydrogen sulfate) solution. When $\ce{NH4HSO4}$ dissociates I know that it splits into $\ce{NH4+}$ and $\ce{HSO4-}$ ions.
What is "super" in superphosphate? - Chemistry Stack Exchange
2019年8月18日 · Chemistry. A phosphate containing an excess of phosphoric acid; an acid phosphate. Now disused except in superphosphate of lime, calcium superphosphate: cf. sense 2. 1798 Philos. Trans. (Royal Soc.) 88 17 It was..Scheele who discovered, that the urine of healthy persons contains superphosphate, or acidulous phosphate, of lime.