Molarity = moles of solute/liters of solution ( 300 ml = 0.300 liter )
0.250 molar KOH = moles KOH/0.300 liters
= 0.075 moles KOH
dissolve iodine crystals in a saturated KI(potassium iodide) solution
To prepare 6 nM ammonium hydroxide a 30 percent solution you need to know the volume of the 30 percent solution that you have and the volume of 6nM solution you would like to make. Then use the following formula: C1V1 = C2V2 where C = concentration in moles/Liter and V = volume in liters.
Dissolve 50 g of potassium carbonate in 100 mL of water at 20 0C.
Crystallisation from solution, flotation, or electrostatic separation from suitable minerals.
Take 10 gm oF KI dissolve it in 100ml.
A mil is a measurement that equals one-thousandth of an inch, or 0.001 inch.
This depends on the concentration of the primary solution; for a 25 % ammonium hydroxide solution you need 85,15 mL.
Drabkin's Solution is a mixture of potassium cyanide and potassium ferricyanide. What this solution does is hemolysis red blood cells and then hemoglobin is released.
111.72
In the fabrication process of soap potassium hydroxide is used.
dissolve iodine crystals in a saturated KI(potassium iodide) solution
pottassium permangate
ask your teacher.
The formula "K" refers to potassium hydroxide. When dissolved in methanol (OH), it becomes KOH, or methanolic potassium hydroxide. This is an extremely volatile liquid, so the utmost care must be taken in preparation.
Potassium hydroxide is used to prepare only liquid soaps. Soaps resulted from the saponification of fats with KOH are liquids or viscous. Soaps resulted from the saponification of fats with NaOH are solids.
From the definition of molar concentration, the required amount of solute for the solution specified is 0.125 moles. The gram formula mass for potassium benzoate trihydrate is 214.26. Therefore, the mass required is 0.125 X 214.26 or about 26.8 grams, to the justified number of significant digits.
Dissolve 101.1 g of potassium nitrate in 1 litre of water