0
q
Anonymous
Add your answer:
Earn +20 pts
A 0.200M solution of sodium carbonate Na2CO3 is made by dissolving 5.30g of the solid in water and making up the mark in a standard flask What volume must the flask be?
Flask is something that holds the sweeet nectar of alcohol
When boiling water will it remove all the contaminants?
To ensure all contaminates are removed, the water must be distilled by boiling, the water vapour led off, and then condensed back into water into a clean vessel.
During the cooling of the naphthalene why the boiling tube must be placed in a conical flask?
ensure even cooling of the napthalene
How to make hydrochloric acid?
Warning: This experiment releases toxic hydrogen chloride gas. This experiment must be done in a fumehood or outside. The containers must be glass to withstand the acid. Chemicals: conc. sulfuric acid,sodium chloride,distilled water Equipment: Round bottomed flask,funnel,test tube,bunsen burner, tripod, gauze mat, stopper with hole in the middle, 3 tubes, 3 1-inch length flexible rubber tubes, stand METHOD hold the round bottomed flask with the stand. Pour the sulfuric acid and sodium chloride in the round bottomed flask. Quickly place the stopper in the neck of the flask. Connect the 3 glass tubes and the 3 rubber tubes into a U-shape. connect one end to the stopper and the other in the water. Heat the water with the Bunsen burner and wait about a hour. NOTE Before you start the experiment you should connect the 3 tubes and the 3 rubber tubes first before you pour the acid and sodium chloride in (unless you are a CRAZY SCIENTIST)! --------- Hydrochloric acid is only the solution of hydrogen chloride in water. For the industrial production of hydrogen chloride see the link below.
Why don't you have to rinse the flask in between trials in a titration?
You must rinse to keep the booger from Mr Connoly's crack flaking into your food....Founded by Dr Amilcar / GOD
How do you get clean water from muddy water through evaporation?
The condensed water is cleaner because impurities are not evaporated.
Must a flask be a good conductor of heat?
so as to keep the flask hot hereby keeping the hot water inside the flask hot.
How can you get fresh water if it evaporates?
After evaporation vapors must be condensed.
Is salt water ok to drink after evaporation?
Vapors must be condensed to obtaindrinking water. Salt water is not good to drink.
A 0.200M solution of sodium carbonate Na2CO3 is made by dissolving 5.30g of the solid in water and making up the mark in a standard flask What volume must the flask be?
Flask is something that holds the sweeet nectar of alcohol
What are condensed domains?
It actually means compressed or concentrated. Example: the power must not be condensed.
What must be present so that clouds could form?
Water vapor and heat must be present for clouds to form. The water is evaporated from the ground and collected into a cloud.
Why is the conical flask only rinsed with distilled water in the titration procedure?
Yes. By adding water to rinse, you will be changing the concentration of the thing you are titrating, and so your calculation will be off. If you have material on the walls of the flask, just gently stir the flask and let the solution in the flask wash anything off the walls. I do not believe this is true. Once you add an amount of reactant into your flask adding more water will not change the number of moles of reactant that are present in the flask. The titrant will react in the mole ratio for that particular reaction so water doesn't play a role. You can rinse the flask and even use water to get part of a drop into your flask for a more accurate titration.
When boiling water will it remove all the contaminants?
To ensure all contaminates are removed, the water must be distilled by boiling, the water vapour led off, and then condensed back into water into a clean vessel.
To distil sea-water you must first.?
collect sea water in distilling flask. boil water. steam escapes, salt remains behind. use physical means to separate physical mixtures.
Kind of water must be used in medical preparations?
The water used in medical preparations differs from the water that a human normally consumes. Water used in medical preparations is distilled and sterilized.
Why must the weighing scoop be washed when transferring the sample into the conical flask?
Your intention is to transfer only the true sample into the conical flask, not the dirt from the scoop.
