0
When doing a titration in chemistry why do you weigh by difference?
GregOstler
you weigh by difference to minimise the amount of errors because essentially all scales have the same ammount of error on them.
Wiki User
∙ 11y ago
Add your answer:
Earn +20 pts
How do you use watch glass chemistry?
- as a support to weigh samples of solid reagents- to cover a Berzelius beaker
How do you get an accurate titration?
In Titration, to make sure we get a reliable and accurate result at first we will do a rough titration and we would do this by balancing the weigh boat to 0.00, use exact 2.5g of potassium carbonate, make sure the stopper your using is not broken and test it before using it. Look carefully at position of meniscus and it should be read from eye level. Raising the burette and glass pipette for every activity will help to reduce contamination, by doing these procedures we will get accurate results. After 25.9 cm make it drop by drop, to reduce the human error, there should be more than one person to do the experiment so they can get the timing right. Before using the conical flask, water it with distilled water
Why potassium iodate is added to potassium iodide in iodometry titration?
Iodometric titration means the titration of triiodide. Preparation of triiodide can be prepared by adding solid iodine to excess potassium iodide, however since iodine sublimes it is more difficult to weigh than potassium iodate. The triiodide would then need to be standardized with primary standard grade arsenious oxide. A better way is to weigh potassium iodate and add to a small excess of potassium iodide. The two ions (iodide and iodate) will also form the needed triiodide in an acidic environment. If the reagent is made fresh this way it can be used to standardize thiosulfate. Iodide iodate of known normality can also be used to titrate unknown concentrations of sulfite. For example, steam boiler treatment applications.
From the thermal decomposition of copper carbonate how can you use conservation of mass to measure the amount of carbon dioxide produced?
Before thermal decomposition, weigh the mass. Thermally decompose. Allow to cool Re-weigh. The difference in the masses is the mass of CO2 released.
What is the mass of 64.44 grams?
The mass is 64.44 grams. But the difference between mass and weight is that mass is weight is how heavy it is on the planet you weigh it on and mass it the weight it is on Earth, whether is is on Earth, or not.
Why do you weigh by difference?
You weigh by difference because in general this is more accurate than weighing directly.
How do you use watch glass chemistry?
- as a support to weigh samples of solid reagents- to cover a Berzelius beaker
How much does the averange orange weigh?
From doing research I will soon have the answer for this speaking that I am doing a project on this subject.
Would you weigh a cantaloupe in kilograms or grams?
You can weigh it either way, the only difference is a factor of 1000 in the result.
How do you get an accurate titration?
In Titration, to make sure we get a reliable and accurate result at first we will do a rough titration and we would do this by balancing the weigh boat to 0.00, use exact 2.5g of potassium carbonate, make sure the stopper your using is not broken and test it before using it. Look carefully at position of meniscus and it should be read from eye level. Raising the burette and glass pipette for every activity will help to reduce contamination, by doing these procedures we will get accurate results. After 25.9 cm make it drop by drop, to reduce the human error, there should be more than one person to do the experiment so they can get the timing right. Before using the conical flask, water it with distilled water
How do you figure urine output from a diaper?
Weigh the diaper dry and weigh it after it has been voided in. The difference is the amount of output.
How would you weigh a parrot?
Weigh yourself on a very precise scale while holding the parrot, then weigh yourself without it. The difference in weight is the weight of the bird.
What is the difference between boy and girl ants?
There is no difference but I think the girl ants weigh a fraction less
Would a kilogram of butter weigh more or a kilogram of lead?
Both would weigh 1 Kilogram with a difference of volume.
How much does a Chevrolet avalanche weigh?
I am doing a report for one of my classes and I need to know how muck different kinds of trucks weigh.
How many calories do you lose doing air squats?
Doing squats burns calories at a rate of about 100 per 10 repetitions. This figure varies depending on how much you weigh.
What are the uses of a weighing boat?
A weighing boat is an open container often used in chemistry and biochemisrty. It is used if you want to weigh a sample very accurately.
