Simply divide 125 by 14.3. The answer is 8.74.
When that solution is evaporated completely, only salt remains
A filtrate that is evaporated to dryness undergoes a physical change.
Molarity = moles of solute(CuSO4)/volume of solution(Liters) 0.967 grams CuSO4 (1 mole CuSO4/159.62 grams) = 0.00606 moles CuSO4 Molarity = 0.00606 moles/0.020 liters = 0.303 Molarity
Crystals of sugar are obtained.
5ml of ether extract Of any plant was evaporated to dryness. The residue was dissolved by heating in 1-2ml of 50% methanol. Metallic magnesium was added to the mixture followed with 5-6 drops conc. HCl. The development of an orange colour indicates the presence of flavanones.
When that solution is evaporated completely, only salt remains
5
Heating a solution until all the solvent has evaporated is known as heating to dryness.
A filtrate that is evaporated to dryness undergoes a physical change.
formaldehyde
Which piece of laboratory apart it would most likely be used to evaporated E1 millimeters sample of a solution to drynes
Molarity = moles of solute(CuSO4)/volume of solution(Liters) 0.967 grams CuSO4 (1 mole CuSO4/159.62 grams) = 0.00606 moles CuSO4 Molarity = 0.00606 moles/0.020 liters = 0.303 Molarity
Crystals of sugar are obtained.
Evaporating to dryness
drought
Wine? White wines (and reds) are not all dry. Dry means low sugar, not sweet. Dryness/sweetness are completely unrelated to alcohol content.
NaOH + CH3OH --> CH3ONa + H2O Evaporate the solution to dryness, add more CH3OH and evaporate to dryness. you can repeat a few times to ensure the remaining solid is sodium methoxide