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How would your results have differed if the tip of the burette was not filled with sodium hydroxide before the initial volume reading was recorded?
Wiki User
∙ 13y ago
You would be lead to assume that there was more NaOH in the pipet than there actually was. Since when for example the pipet reads 10ml this is talking when the space in the burette is also filled up. When it is that the reaction takes place between the NaOH and acetic acid you would think that you used more NaOH than you really did, which will ultimately make you think more acetic acid was in the vinegar than was in fact.
Wiki User
∙ 13y ago
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What is the initial cause of the dissociation of water molecules into hydrogen and hydroxide ions?
hydrolysis
Determine the number of moles of sodium hydroxide produced when 2 moles of sodium and 3 mol of water react to form soduim hydroxide and hydrogen gas?
Na +H2O -> NaOH +(1/2)H2 Every mole of Sodium requires one mole of water to make one mole of Sodium Hydroxide. So two moles of Sodium will produce two moles of Sodium Hydroxide. If there are three moles of water in the initial reaction then there will be one mole of water left over after reacting with two moles of Sodium. This reaction will produce half a mole of hydrogen gas.
What are the products of sodium hydroxide decomposition?
http://genchem.chem.wisc.edu/lab/CCA/MVHTM/NACO/NACONAOH.HTM This link is to a video showing the reaction. Following double-replacement conventions, the products formed will be the same as the initial reactants. This video shows that there is no visible reaction, thus these two reactants do not form a product.
Standardization of sodium thiosulphate by potassium iodate?
1. Firstly wash out a burette twice with distilled water. 2. Clean the washed burette with the approximately 0.1 mol dm-3 standardised sodium thiosulphate, which is going to be prepared. 3. Fill the burette with approximately 0.1 mol dm-3 standardised sodium thiosulphate, until the bottom of the meniscus is at the 0 cm3 mark on the burette. 4. Pipette 25cm3 of 0.020 mol dm-3 potassium Iodate solution into a 250 cm3 conical flask. 5. Using a 10cm3 measuring cylinder, measure out 10cm3 of 0.5 mol dm-3 potassium iodide and add it to the conical flask. 6. Using a 10cm3 measuring cylinder, measure out 10cm3of 1 mol dm-3 sulphuric acid and add it to the conical flask. At this stage the three solutions will be mixed together in the conical flask, to produce iodine. 7. Record the initial reading on the burette (0 cm3) to work out the titre, record this to two decimal places 8. Turn the burette tap, so the 0.1 mol dm-3 sodium thiosulphate pours into the iodine in the conical flask (adding small amounts and then stirring the conical flask) 9. When the red/brown iodine solution in the flask turns yellow, stop titrating the 0.1 mol dm-3 sodium thiosulphate into the flask 10. Add a few drops of the starch indicator to the conical flask; it will turn dark blue/black colour to intensify the colour change. 11. Turn the burette tap back on, add the 0.1 mol dm-3 sodium thiosulphate drop wise, whilst swirling the flask, until the dark blue/black colour disappears. 12. Record the final burette reading, from the point where the bottom of the meniscus is. 13. Record the result in the table, and then calculate the titre value by finding the difference between the initial reading and the final reading. 14. Repeat the titration to obtain concordant results, whereby the titre is 0.1 cm3 difference at max. 15. Obtain all your results and present them in a table, to two decimal places.
Is Adam Berg from The Weather Channel gay?
my initial impression is yes
What is the initial cause of the dissociation of water molecules into hydrogen and hydroxide ions?
hydrolysis
What is the proper way to read a burette?
Any fluid!!! It is like a pipette, however, it is usually more accurate because you can use a burette loader which allows fine tuning of the liquid but not as fine as a gilson pipette. Basically, it is just a piece of apparatus used measuring liquids.
What was one way Georgia differed from Maryland?
One way Georgia differed from Maryland was in terms of its initial purpose. Georgia was established as a colony for debtors and to act as a buffer between the British colonies and Spanish Florida, while Maryland was founded as a haven for Catholics seeking religious freedom.
Is owner investment is asset?
An owner's initial investment in a company is recorded as Shareholder's Equity. The cash and other property contributed by the owner are recorded as Assets to the company.
What Christmas song has the initial wacib?
When A Child Is Born. The most famous version of this song is by Johnny Mathis, recorded in 1976. Although, it has been recorded by many artistes from Willie Nelson to Bing Crosby through to Plácido Domingo.
Determine the number of moles of sodium hydroxide produced when 2 moles of sodium and 3 mol of water react to form soduim hydroxide and hydrogen gas?
Na +H2O -> NaOH +(1/2)H2 Every mole of Sodium requires one mole of water to make one mole of Sodium Hydroxide. So two moles of Sodium will produce two moles of Sodium Hydroxide. If there are three moles of water in the initial reaction then there will be one mole of water left over after reacting with two moles of Sodium. This reaction will produce half a mole of hydrogen gas.
Looking for a Christmas carol title with initial A M W?
There's a song called "A Marshmallow World" that Raul Malo and Vic Damone (at least) have recorded.
What are the products of sodium hydroxide decomposition?
http://genchem.chem.wisc.edu/lab/CCA/MVHTM/NACO/NACONAOH.HTM This link is to a video showing the reaction. Following double-replacement conventions, the products formed will be the same as the initial reactants. This video shows that there is no visible reaction, thus these two reactants do not form a product.
How do you say initial in German?
it depends on the context initial (as your initials) - Initial initial (as in first) - erste/erster/erstes
What is the initial correspondence?
what is initial correspondence
Which is not an example of the initial construction standard?
Initial
How do you correct a middle initial on a deed?
If your middle initial was written incorrectly in your deed you should return to the attorney who represented you when you purchased your property and ask her to draft and record in the land records a scrivener's affidavit explaining the error and ask to have it referenced to your deed.
