The required amount of carbonate chemistry to raise the pH of a fixed volume of liquid?
I am trying to determine the amount of sodium carbonate (Na2CO3) necessary to raise the pH of a 64000 L volume of liquid from a pH of 4.0 to a pH of 8.0? I have performed all of the carbonate dissociation calculations and have attached to this message.....I have gone over my logic and math numerous times and think I have the ...continues
Calculating solubility of aluminum in aluminum sulfate (AL2(SO4)3) at various pH levels?
Alum (aluminum sulfate) is used as a flocculant to floc an anionic material in a water solution at pH = 4.0 and temperature = 130 degrees F. The solubility of the alum is noted as 87 grams per 100 cc's of liquid (assuming std temp & pressure). Assume 1 liter of solution....based on this, how would I determine the actual solub ...continues
Carbonate chemistry and its use as a pH adjuster.
Please see the attached file. I am trying to determine the amount of sodium carbonate (decahydrate) needed to raise a 1 liter solution from a pH of 4.0 to 5.0? The molar mass of the Na2CO3-10H20 is given as 286.14 g/mol
Inorganic Chemistry. See attached file for full problem description.
Determine solubility of boric acid (H3BO3) at various pH's
This problem indicates that 1 gram of hydrated boric acid (H3BO3) is added to 1 liter of water at pH 7.0 and at standard temperature. The solubility is stated in the problem as 5.7 grams per 100 ml of solution. A pKa is also given as 9.24. 1) What does the pKa value mean? 2) How would I determine the amount of boric acid ...continues
I have a lab experiment in which I have a slurry of wood pulp at a pH of 4.0; I'm asked to use sodium carbonate to raise the pH of the slurry to pH 5.5. I then press the wood slurry to de-water and place it in an oven until it is bone dry. I then take the wood sample out of the oven and place it in a bath of water to determine h ...continues
Aluminum sulfate as a flocculant?
In a lab experiment, a solution of weak acids in water exhibit a pH of 3.7; the solution is known to have a known quantity of dissolved solids in solution. Paper makers alum (aluminum sulfate = Al2(SO4)3) is supposed to be used to coagulate/flocculate the dissolved solids in order to precipitate those solids. In the course ...continues
Balancing Chemical Equations and Understanding Reaction
I have a 1 liter solution of unknown weak acid in water of which the pH is 4.0. I have 1 known compound that will be added to this solution --- that being alum (aluminum sulfate = Al2(SO4)3. The objective is to add either sodium carbonate or calcium carbonate to the solution to adjust the pH to 5.0. The desired output reaction i ...continues
Carbonate chemistry --- Impact of solubility on ability to increase pH?
How does the solubility of a particular reactant affect its ability to raise pH. I am particularly interested in the difference between sodium carbonate and calcium carbonate. Calcium carbonate is much much less soluble than sodium carbonate. However, does the solubility of the carbonate matter when adjusting pH from say ...continues
Could you please help me better understand the formation of aluminum hydroxide --- for instance: Again, lets assume we have a generally weak acid solution to which we add aluminum sulfate. The objective is to precipitate aluminum hydroxide per the following reaction which I believe to be correct. Al2(SO4)3 + HCO3- = 2Al(OH ...continues
