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A solution is prepared by mixing 360.0 mL of 0.25 M NaOH with 140.0 mL of 0.50 M NaOH and the final concentration is?
The concentration is 12,8 g/L NaOH.
When 5.12 g of NaOH were dissolved in 51.55 g water?
The concentration of NaOH is 99,32 g/L.
What will happen to the molarity of NaOH If a drop of NaOH falls out of the flask during the titration?
If a drop of NaOH falls out of the flask during titration, the molarity of NaOH in the flask will decrease. This is because the volume of NaOH solution decreases while the amount of solute stays the same, leading to a lower concentration of NaOH in the remaining solution in the flask.
What is the standard concentration of Na OH?
The standard concentration of NaOH is typically 1.0 M for laboratory use.
How many milliliters of 0.305M NaOH would be required to titrate a 5.00mL solution of 0.616M HBr?
Since NaOH and HBr react in a 1:1 ratio, the moles of NaOH needed to titrate HBr can be calculated. Moles of NaOH = moles of HBr. Next, use the concentration and volume of HBr to find the moles present. Finally, use the concentration of NaOH to calculate the volume needed. In this case, approximately 2.41 mL of 0.305M NaOH would be needed.
Why normality of naoh is decrease?
Normality of NaOH = molarity of OH- , so for pure NaOH they are equal.When kept in open air the OH- ions come in contact with the slightly (and slowly) soluble carbon dioxide (CO2), which is an ACID forming oxide, thus reacting with the strong base hydroxide:CO2 + H2O -->H2CO3immediately followed by:H2CO3 + OH- --> HCO3-and eventually followed by a second step:HCO3- + OH- --> CO32-While hydroxide is 'disappearing' from solution, it decreases 'its' normality (= concentration of ions, reactive to acids)
When NaH is added to water the hydroxide concentration increases what can you include about NaOH?
NaOH is formed when NaH reacts with water. NaOH is a strong base that increases the hydroxide ion concentration in the solution. This increase in hydroxide ions leads to higher pH levels in the solution.
What volume of NaOH was used in the titration?
To determine the volume of NaOH used in the titration, you need to know the concentration of the NaOH solution and the volume required to reach the endpoint. Use the formula: volume NaOH (L) = volume HCl (L) * concentration HCl / concentration NaOH.
How does failing to rinse down the unknown acid solution from the inside wall of the flask near the end of the titration affect concentration of NaoH?
Failing to rinse down the unknown acid solution from the inside wall of the flask near the end of the titration can lead to a false indication of excess NaOH titrant. This can result in an inaccurate calculation of the concentration of NaOH in the solution, leading to a higher reported concentration. Inaccurate rinsing can also affect the consistency and reproducibility of experimental results.
When NaOH is diluted to half of its original concentration what affect does this have on titration?
If NaOH is diluted to half of its original concentration, this would mean that the molarity has also been halved. During titration, this would result in requiring twice the volume of the diluted NaOH solution to reach the endpoint compared to the original concentration.
What is the effect of dilution on the pH of NaOH?
Dilution of NaOH will result in a decrease in pH. This is because as NaOH is diluted, the concentration of hydroxide ions (OH-) decreases, leading to a decrease in alkalinity and an increase in acidity, resulting in a lower pH.
Does HCl change in concentration when neutralized with NaOH?
Yes, when HCl is neutralized with NaOH, the concentration of HCl decreases as it reacts with NaOH to form water and NaCl. The concentration of the resulting NaCl solution will increase as the reaction progresses.
What is the concentration of 26 baume NaOH?
A 26 Baume NaOH solution has a concentration of approximately 30.9% NaOH by weight. The Baume scale is used to measure the density of a solution, with 26 Baume corresponding to this specific concentration of sodium hydroxide.
A solution is prepared by mixing 360.0 mL of 0.25 M NaOH with 140.0 mL of 0.50 M NaOH and the final concentration is?
The concentration is 12,8 g/L NaOH.
Why do we need to standardize the NaOH solution?
Standardizing the NaOH solution is important to ensure its accuracy and consistency in chemical reactions and experiments. This process helps determine the exact concentration of the solution, allowing for precise and reliable results in scientific research and analysis.
Why is it necessary to standardize the NaOH solution before titration?
Standardizing the NaOH solution before titration is important to accurately determine its actual concentration. This ensures the accuracy and reliability of the titration results by eliminating any discrepancies that may arise from variations in the concentration of the NaOH solution.
How do you calculate of NaOH in solution procedure?
To calculate the concentration of NaOH in a solution, you would typically measure the volume of the solution and the amount of NaOH used to prepare it. Then, you can use the formula: Concentration (in mol/L) = amount of NaOH (in mol) / volume of solution (in L) to determine the concentration. Make sure to convert any given amount of NaOH from grams to moles before calculating.
