How do you convert mmol to equivalent?
How do you convert mmol to equivalent?
A certain amount of univalent ions provides the same amount of equivalents while the same amount of divalent ions provides twice the amount of equivalents. For example, 1 mmol (0.001 mol) of Na+ is equal to 1 meq, while 1 mmol of Ca2+ is equal to 2 meq.
What is the gram equivalent weight of HCl?
The equivalent weight of an acid or base for neutralization reactions or of any other compound that acts by double decomposition is the quantity of the compound that will furnish or react with or be equivalent to 1.008 g of hydrogen ion or 17.0074 g of hydroxide ion—e.g., hydrochloric acid (HCl), 36.461 g; sulfuric …
What is the gram equivalent weight of NaOH?
40 g/mol
What is the formula of crystalline oxalic acid?
C2H2O4
How do you make N 20 solution of oxalic acid?
Procedure
- Rinse and fill the burette with the given KMnO4 solution.
- Weigh exactly 1.58 g of oxalic acid crystals and dissolve in water to prepare 500 ml of.
- Add one test tube (~ 20 ml) full of dilute sulphuric acid (~ 4 N) to the solution in , titration flask.
- Note the initial reading of the burette.
How do you calculate 0.1 N KMnO4?
Potassium Permanganate 0.1 N: Dissolve 3.3 g of reagent grade potassium permanganate (KmnO4) in 1 L of purified water and heat on a steam bath for two hrs. Cover and allow to stand for 24 hrs. Filter through a fine porosity sintered glass crucible, discarding the first 25 mL.
What is M20 oxalic acid?
preparation of standard solution of oxalic acid [ 250ml / M/20 ] we know, molar mass of oxalic acid , = 126g/mol. given, molarity = 0.05M. and volume of solution , V = 250ml. so, mass of oxalic acid = M × molarity × V/1000.
Why is H2SO4 used instead of HCl in titration?
Sulfuric acid is used because it is stable towards oxidation; whereas, for example, hydrochloric acid would be oxidized to chlorine by permanganate.