0
Why is it necessary to dry ice before adding to water in an experiment?
Wiki User
∙ 13y ago
Because if the ice is wet then you've got ice and water there and
1 these have different thermal properties
2 you won't necessarily know the amount of water that's there so if you assume the weight of "ice" is all ice your results will be wrong.
Wiki User
∙ 13y ago
Add your answer:
Earn +20 pts
Is it necessary to subtract the water vapor pressure of water in the butane experiment?
yes it is necessary to subtract the water pressure
Why is it necessary to remove all water from bromobutane before distilling it?
Removing all of the water is necessary because otherwise, the high heat during distillation will cause the water and bromobutane to react and form butanol.
What happens when you mix equal parts nitric acid and distilled water?
Nitric acid is not a very strong acid. Adding distilled water will cause it to be more diluted. Its acidity does not change. However, to neutralize it, you do not need more alkali as compared to before adding the distilled water.
What is the importance of wiping the ice before introducing it to the water in the calorimeter?
The specific heat of water is different from the specific heat of ice and so 'wet ice' into a calorimeter experiment can increase the mass of water in the calorimeter and become a source of unaccuracy.
What was the effect of adding more salt to water?
saltier water.
Why is it necessary to dry the ice before adding to the water?
It is not necessary.
Is it necessary to subtract the water vapor pressure of water in the butane experiment?
yes it is necessary to subtract the water pressure
How does adding salt affect the freezing point of water and what is the procedure of this experiment?
Adding salt (sodium chloride) the freezing point of water decrease; for an experiment add gradually salt (in known quantities) and measure the freezing point after each addition.
How do you correct the pH of water?
By adding the necessary reagent, acidic or basic.
Why is it important to let water to become still before an experiment?
If water is not still before an experiment then if the experiment involves measuring water then the measurement would not be accurate. Also if there is something in the water you might spill it out and spoil your experiment.
Why is adding water necessary when separating salt from salt rock?
So the salt dissolves
Is it okay if you boil water before putting it in your betta's bowl?
Its ok as long as you let the water cool to room temperature before adding the water back to the bowl, or adding the betta to the water. Also, it is completely unnesseary to boil before putting in your betta's bowl.
Is it necessary remove rotted wood from your house before adding a moisture barrier?
How much rot? Where is the rot and what is that board doing for the structure? Where is the water coming from that caused it? What is going to be affected if you leave it in place?
What would be the pH of the water before adding an acid?
pH of water is 7.0 (meaning neutral)
What is the control variable in the experiment does adding fertilizer to plants allow them to grow faster?
controlled variable would be light water and health of the plants
Suspensions can be wetted before adding water by using a wetting agent or a?
surfactant
Why is it a good idea to add fat to the flour before adding water?
because it is
