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Bromocresol green is used as an indicator in the titration of sodium carbonate with hydrochloric acid because it changes color within the pH range of the endpoint of the titration. It turns yellow in acidic solutions (due to excess HCl) and blue in basic solutions (due to excess Na2CO3), making it suitable for detecting the equivalence point where the moles of acid have reacted completely with the moles of base.
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Why is bromocresol green a suitable indicator in the titration of hydrochloric acid with sodium tetraborate?
Bromocresol green changes color in the pH range of 3.8 to 5.4, which is close to the pH at the endpoint of the titration of hydrochloric acid with sodium tetraborate. This makes it a suitable indicator for this titration as it changes color around the equivalence point.
What is the mechanism of methyl orange in sodium carbonate and hydrogen chloride titration?
Methyl orange acts as a pH indicator in the process of sodium carbonate and hydrogen chloride titration. The addition of methyl orange will indicate the ratio of sodium carbonate to hydrogen chloride by the colour which develops.
Which indicator is suitable for the titration of washing soda against HCL and why?
Phenolphthalein is a suitable indicator for titration of washing soda (sodium carbonate) against hydrochloric acid. This indicator changes color in the pH range of 8.2 to 10, making it ideal for this titration since the end point occurs when all the sodium carbonate has reacted to form sodium chloride and carbonic acid, resulting in a pH above 8.2.
Color of sodium carbonate in universal indicator?
Sodium carbonate in universal indicator will typically appear blue or purple in color. This is due to the alkaline nature of sodium carbonate, indicating a high pH level.
In the estimation of sodium carbonate you use methyl orange as an indicator?
Methyl orange changes color from red to yellow at a pH of around 4.4 to 3.1. In the titration process, the color change indicates the endpoint of the reaction between the sodium carbonate and the acid being used. This allows for precise determination of the amount of sodium carbonate present in the solution.
Why is bromocresol green a suitable indicator in the titration of hydrochloric acid with sodium tetraborate?
Bromocresol green changes color in the pH range of 3.8 to 5.4, which is close to the pH at the endpoint of the titration of hydrochloric acid with sodium tetraborate. This makes it a suitable indicator for this titration as it changes color around the equivalence point.
What is the mechanism of methyl orange in sodium carbonate and hydrogen chloride titration?
Methyl orange acts as a pH indicator in the process of sodium carbonate and hydrogen chloride titration. The addition of methyl orange will indicate the ratio of sodium carbonate to hydrogen chloride by the colour which develops.
What indicator in titration of sodium carbonate solution against hydrochloric acid would give a complete neutralization?
The indicator methyl orange can be used in the titration of sodium carbonate solution against hydrochloric acid to give a complete neutralization. At the endpoint, when all the carbonate ions have reacted to form bicarbonate ions, the solution will turn from yellow to pink.
Which indicator is suitable for the titration of washing soda against HCL and why?
Phenolphthalein is a suitable indicator for titration of washing soda (sodium carbonate) against hydrochloric acid. This indicator changes color in the pH range of 8.2 to 10, making it ideal for this titration since the end point occurs when all the sodium carbonate has reacted to form sodium chloride and carbonic acid, resulting in a pH above 8.2.
Color of sodium carbonate in universal indicator?
Sodium carbonate in universal indicator will typically appear blue or purple in color. This is due to the alkaline nature of sodium carbonate, indicating a high pH level.
In the estimation of sodium carbonate you use methyl orange as an indicator?
Methyl orange changes color from red to yellow at a pH of around 4.4 to 3.1. In the titration process, the color change indicates the endpoint of the reaction between the sodium carbonate and the acid being used. This allows for precise determination of the amount of sodium carbonate present in the solution.
What colour does universal indicator change to if sodium sodium by carbonate is added?
Universal indicator changes to green when sodium bicarbonate is added.
How does sodium carbonate and sodium bicarbonate react during titration?
When sodium carbonate and sodium bicarbonate are titrated together, the sodium carbonate will react with the acid first due to its higher alkalinity compared to sodium bicarbonate. The sodium bicarbonate will then react next, producing carbon dioxide gas as a byproduct due to its weaker alkalinity. This reaction can be observed by the effervescence or bubbling of carbon dioxide gas during the titration.
What indicator will be used in standardization of sulfuric acid against sodium carbonate?
In standardization of sulfuric acid against sodium carbonate, the indicator typically used is phenolphthalein. Phenolphthalein turns pink in basic solutions, which helps in determining the endpoint of the reaction between sulfuric acid and sodium carbonate.
What indicator can you choose for the titration of oxalic acid with sodium hydroxide?
Phenolphthalein is a suitable indicator for the titration of oxalic acid with sodium hydroxide. It changes color from colorless to pink at the endpoint of the titration when the acid has been completely neutralized.
Explain why the titration pf sodium carbonate has two end points...?
In the first phase sodium carbonate is transformed in sodium hydrogencarbonate.In the second phase NaHCO3 react with the acid (HCl) to form NaCl, CO2 and H2O.
Does sodium carbonate react with phenolphthalein indicator?
Sodium carbonate does react with phenolphthalein indicator, producing a color change from colorless to pink in alkaline solutions. Sodium carbonate is a common base that can be used to test for the presence of acidity or alkalinity in a solution using phenolphthalein.
