Mol. Wt 60.0
So 60.0 gm in 1L is 1M
60*6= 360gm in 1L is 6M urea
Urea
935ml
The equivalent of potassium dichromate is the molar mass/6: 294,1846/6=49,307666. For a 0,1 N solution: 49,30766/10 = 4,93076 g
The formula is C6H12O6 which is 180g/mole. Divide that in half for 90g in one liter of water for a 0.5 molar solution
Add 200 mL concentrated (12 M) hydrochloric acid to 200 mL distilled water while stirring. CAUTION: Never add water to acid.
Urea
Urea is an organic compound. Its chemical formula is CO parenthesis NH2 and 2 on the outside. The molar mass is 60.06 grams per mol.
935ml
by urea hydrogen peroxide reaction with tri fluro acetic anhydride
Dissolve 15,015 g urea in 0,5 L demineralzed water; work with a thermostat at 20 oC and a volumetric flak.
The equivalent of potassium dichromate is the molar mass/6: 294,1846/6=49,307666. For a 0,1 N solution: 49,30766/10 = 4,93076 g
The chemical formula of the urea is CH4N2O. The atomic mass of Carbon is 12. That of hydrogen is 1*4. That of nitrogen is 14 * 2. That of oxygen is 16. So total atomic mass of urea comes to be 60. So you have to add 60 grams of urea to one liter of the water to make one molar solution.
The formula is C6H12O6 which is 180g/mole. Divide that in half for 90g in one liter of water for a 0.5 molar solution
Dissolve 294,185 g of potassium dichromate in 1L demineralized water.
Add 200 mL concentrated (12 M) hydrochloric acid to 200 mL distilled water while stirring. CAUTION: Never add water to acid.
take 276 gm of salicylic acid in 1000 ml water to prepare 2M solution of the salicylic acid.
visit this... mv.org/cms/lib/PA02218547/Centricity/Domain/98/chemistry_matter_and_change.pdf