Table of Contents
- 1 How do you make 6 M phosphoric acid?
- 2 How do you make 1m phosphoric acid solution?
- 3 How is phosphoric acid prepared?
- 4 How do you make 10 phosphoric acid?
- 5 How is phosphoric acid commercially prepared?
- 6 Which reaction can be used to prepare phosphoric acid?
- 7 How to prepare 500 ml of phosphoric acid from 85\%?
- 8 How do you make 2m orthophosphoric acid from 98g/mol?
- 9 How do you make polyphosphoric acid?
How do you make 6 M phosphoric acid?
For example, to make 500 mL of 6M HCl, use 250 mL of concentrated acid and slowly dilute to 500 mL with water….Recipes for Acid Solutions.
| Name / Formula / F.W. | Concentration | Amount/Liter |
|---|---|---|
| sp. gr. 1.42 | 0.1 M | 6.3 |
| Phosphoric Acid | 6 M | 405 mL |
| H3PO4 | 3 M | 203 |
| F.W. 98.00 | 1 M | 68 |
How do you make 1m phosphoric acid solution?
This solution is infinitely soluble in water or alcohol; it is soluble at 1 part in 8 of a 3:1 (v/v) ether:alcohol mixture. 2 The pH of a 0.1 N aqueous solution is approximately 1.5. 2 Approximately 67.8 mL are required to prepare 1 L of 1.0 M phosphoric acid.
How is phosphoric acid prepared?
Preparation of Phosphoric acid It can be conveniently prepared by dissolving P2O5 in water followed by boiling the solution to form a thick syrup. Red phosphorus when heated with conc. HNO3 yields orthophosphoric acid. On a large scale, it is prepared by treating phosphorite rock with dil.
How do you make h3po3?
Phosphorous acid (H3PO3) forms salts called phosphites, also used as reducing agents. It is prepared by dissolving tetraphosphorus hexoxide (P4O6) or phosphorus trichloride (PCl3) in water.
How will you prepare 6M HCl from 37\% HCl?
i) Prepare 6 M Hydrochloric Acid (HCl) solution by adding 5911 grams (37\% w/w) HCl in deionised water and dilute it to 10 litres.
How do you make 10 phosphoric acid?
- In 100 gram diluted solution you have 1.25 g phosphoric acid.
- In the 10\% solution we have for every gram phosphoric acid 10 gram 10\% solution.
- To end with 1.25 g acid you need 10 x 1.25 = 12.5 g of the 10\% solution.
- This 12.5 gram must be present in 100 gram diluted solution, so you must add 100 – 12.5 = 82.5 gram water.
How is phosphoric acid commercially prepared?
Phosphoric acid (H3PO4) can be produced by 3 main commercial methods: wet process, thermal process and dry kiln process. In a wet process facility (see figure 1), phosphoric acid is produced by reacting sulfuric acid (H2SO4) with naturally occurring phosphate rock.
Which reaction can be used to prepare phosphoric acid?
The correct answer is : D), P4 + conc. HNO3 will form together the phosphoric acid. Actually, the reaction is very fast and here the nitric acid acts as oxidizing agent and reduces phosphorus while the phosphorous being more reactive than nitrogen, replaces that from its compound.
How do you make phosphinic acid?
The most general method to prepare phosphonic acids from phosphonates is to use concentrated HCl solution (35–37\% in water; ≈12 M) at reflux for 1 to 12 h as shown in Figure 5.
What is basicity of orthophosphoric acid?
Orthophosporous acid: Basicity is the number of acidic hydrogen atoms in the molecule. For hydrogen to be acidic, it must be attached to a strongly electronegative atom such as oxygen or fluorine. So 2 hydrogen atoms are attached to 2 oxygen atoms. so basicity is 2.
How to prepare 500 ml of phosphoric acid from 85\%?
The gram formula weight of phosphoric acid is 98.00 g/mol, and the density of 85.0\% phosphoric acid is 1.685 g/mL. Could you describe how to prepare 500 mL of a 1.0 M solution of phosphoric acid from 85.0\% phosphoric acid? You would add 34 mL of 85 \% phosphoric acid to enough distilled water to make a total of 500 mL.
How do you make 2m orthophosphoric acid from 98g/mol?
So, add 2x (98g/mol) = 196g of orthophosphoric acid crystals in 1 liter of pure distilled water and dissolve it completely at constant temperature, to make 2M Orthophosphoric acid. I hope that it helps……. Why is phosphoric acid called orthophosphoric acid?
How do you make polyphosphoric acid?
Polyphosphoric acid Synthesis and composition The basic compounds for the production of polyphosphoric acid (PPA) are phosphorus pentoxide (P2O5) and phosphoric acid (H3PO4), as shown in Figure 2. Phosphorus is first oxidized to phosphorus pentoxide, which crystallizes as P4O10. Upon its reaction with water, phosphoric acid is produced.
How much do you dilute ortho phosphoric acid?
If you have a solution of ortho phosphoric acid that is more concentrated than 6 M then you will need to dilute it. How much to dilute depends on the concentration. A reasonable scenario is that you have a bottle of concentrated ortho phosphoric acid which has a concentration of 15.2 M.