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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?
To find the volume of the flask, first calculate the moles of Na2CO3 using its molar mass. Then use the molarity and moles to find the volume using the formula Molarity (M) = moles/volume (in liters). The volume of the flask needed is then the inverse of the molarity.
Why must you rinse the titration flask with distilled water before further use?
Rinsing the titration flask with distilled water helps to remove any residue or impurities from the previous titration, which could affect the accuracy of the next titration. It ensures that the flask is clean and free of any substances that could interfere with the reaction being studied. This step is crucial for obtaining precise and reliable titration results.
Why don't you have to rinse the flask in between trials in a titration?
Rinsing the flask in between trials in a titration can introduce errors by changing the concentration of the solution in the flask. This can affect the accuracy and precision of the titration results. Therefore, it is recommended to avoid rinsing the flask between trials to maintain consistency in the experiment.
How do you separate pepper water and alcohol?
You can separate pepper water and alcohol through a process called distillation. This involves heating the mixture to evaporate the alcohol, which can then be collected and condensed back into liquid form, leaving behind the pepper water.
When boiling water will it remove all the contaminants?
Boiling water will effectively kill most bacteria, viruses, and parasites that may be present in the water. However, it will not remove chemical contaminants or heavy metals. To remove these types of contaminants, additional water treatment methods such as filtration or distillation may be necessary.
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.
How do you get clean water from muddy water through evaporation?
To get clean water from muddy water through evaporation, you can simply boil the muddy water until it turns into steam. The steam can then be collected and cooled back into water through condensation, leaving behind the impurities in the original muddy water. This process is known as distillation and can help separate clean water from contaminants.
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.
Must a flask be a good conductor of heat?
No, a flask does not necessarily have to be a good conductor of heat. In fact, many flasks are designed with insulating materials to help maintain the temperature of the liquid inside, whether hot or cold. So, a flask can be effective at keeping beverages hot or cold without being a good conductor of heat.
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.
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.
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?
To find the volume of the flask, first calculate the moles of Na2CO3 using its molar mass. Then use the molarity and moles to find the volume using the formula Molarity (M) = moles/volume (in liters). The volume of the flask needed is then the inverse of the molarity.
Why must you rinse the titration flask with distilled water before further use?
Rinsing the titration flask with distilled water helps to remove any residue or impurities from the previous titration, which could affect the accuracy of the next titration. It ensures that the flask is clean and free of any substances that could interfere with the reaction being studied. This step is crucial for obtaining precise and reliable titration results.
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.
