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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?
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.
What else can I help you with?
What is the initial cause of the dissociation of water molecules into hydrogen and hydroxide ions?
The initial cause of the dissociation of water molecules into hydrogen and hydroxide ions is the breaking of the hydrogen-oxygen bonds within the water molecule due to thermal energy. This process is facilitated by the natural tendency of water molecules to ionize into H+ and OH- ions.
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.
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 volume mL of a concentrated solution of sodium hydroxide 6.00 M must be diluted to 200.0 mL to make a 0.880 M solution of sodium hydroxide?
First, use the dilution formula: M1V1 = M2V2, where M1 is the initial concentration, V1 is the initial volume, M2 is the final concentration, and V2 is the final volume. Plug in the values to solve for V1, which is the volume of the concentrated solution needed. V1 = (M2 x V2) / M1 = (0.880 M x 200.0 mL) / 6.00 M ≈ 29.3 mL. You need to dilute 29.3 mL of the 6.00 M NaOH solution to 200.0 mL to get a 0.880 M solution.
Standardization of sodium thiosulphate by potassium iodate?
In this titration method, a solution of potassium iodate is used as the titrant to determine the concentration of sodium thiosulfate solution. It involves adding potassium iodate to sodium thiosulfate solution until the reaction is complete, as indicated by the disappearance of the starch-iodine complex's blue color. The reaction is: 5Na2S2O3 + 2KIO3 + 2H2SO4 -> 2Na2SO4 + K2SO4 + 5I2 + 5H2O.
Why is it not necessary to adjust initial reading to the zero calibration mark when using burette?
When using a burette, the initial reading does not need to be adjusted to the zero calibration mark because the measurement is based on the change in volume from the starting point to the endpoint of the titration. The burette is designed to provide precise measurements of liquid dispensed, regardless of the initial reading, as long as the final reading is taken accurately. This allows for consistent and reliable results without the need for recalibration at the start.
How do you read a burette?
To read a burette, first ensure it is at eye level. Take note of the initial volume, then check the meniscus of the liquid level, making sure to read the bottom of the meniscus for accuracy. Record the final volume by aligning the graduation marks with the meniscus level. Subtract the initial volume from the final volume to determine the amount of liquid dispensed.
Copper sulphate add to sodium hydroxide result colour?
When copper sulfate is added to sodium hydroxide, a blue precipitate of copper hydroxide is formed. The color change observed is from the initial blue color of copper sulfate to the blue precipitate of copper hydroxide.
What are the factors to be considered while using the burette?
Some factors to consider when using a burette include ensuring it is clean and dry, accurately reading the volume markings at eye level, properly filling and dispensing the liquid to prevent air bubbles, and taking the initial volume reading before starting the titration.
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.
When sodium hydroxide dissolve in water estimate the temperature change when the amount sodium hydroxide is doubled?
When sodium hydroxide dissolves in water, it undergoes an exothermic reaction, releasing heat. If the amount of sodium hydroxide is doubled, the same amount of heat will be released, resulting in an increase in temperature. The specific temperature change would depend on the initial amounts and concentrations of the sodium hydroxide and water.
What is the initial cause of the dissociation of water molecules into hydrogen and hydroxide ions?
The initial cause of the dissociation of water molecules into hydrogen and hydroxide ions is the breaking of the hydrogen-oxygen bonds within the water molecule due to thermal energy. This process is facilitated by the natural tendency of water molecules to ionize into H+ and OH- ions.
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 is the chemical composition of residue of ferric chloride and sodium hydroxide?
The residue from the reaction between ferric chloride and sodium hydroxide would likely contain iron hydroxide as a major component, with sodium chloride also present because of the initial reactants. The specific composition would depend on the stoichiometry of the reaction and any other impurities present in the starting materials.
What is the half-life of dripping water in burette?
The half-life of dripping water in a burette will depend on the rate at which the water is dripping. If the drip rate is constant, then the half-life can be calculated by determining the time it takes for half of the initial water volume to drip out. A larger drip rate will result in a shorter half-life, while a slower drip rate will result in a longer half-life.
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.
