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What colour will appear when hydrochloric acid react to sodium hydroxide with a few drop of universal indicator?
A green colour will appear due to the reaction of hydrochloric acid and sodium hydroxide. The universal indicator changes color in response to the pH level of the solution, and green indicates a neutral pH level.
Determination the concentration of concentrated hydrochloric acid?
To determine the concentration of concentrated hydrochloric acid, you can perform a titration with a standardized solution of a base, such as sodium hydroxide. By carefully adding the base to the acid solution and monitoring the pH change using a pH indicator or a pH meter, you can identify the equivalence point and calculate the concentration of the acid using the volume and molarity of the base solution used in the titration.
What 2 substances are formed when hydrochloric acid solution neutralizes sodium hydroxide solution?
When hydrochloric acid solution neutralizes sodium hydroxide solution, water and sodium chloride are formed.
Test for hydroxide ion?
To test for the presence of hydroxide ions, add a few drops of phenolphthalein indicator to a solution. Then, slowly add dilute hydrochloric acid drop by drop. If the solution turns from pink (indicating basic pH) to colorless, it confirms the presence of hydroxide ions.
What oxides reacts with neither hydrochloric acid nor aqueous sodium hydroxide solution?
Carbon monoxide is an oxide that does not react with either hydrochloric acid or aqueous sodium hydroxide solution.
What volume of a 0.152 M potassium hydroxide solution is required to neutralize 10.2 ml of a 0.198 M hydrochloric acid solution?
To determine the volume of potassium hydroxide solution needed to neutralize the hydrochloric acid solution, you can use the formula M1V1 = M2V2. By plugging in the given values, you can calculate the volume of the potassium hydroxide solution required. In this case, the volume of the 0.152 M potassium hydroxide solution needed to neutralize 10.2 ml of the 0.198 M hydrochloric acid solution would be 7.43 ml.
What colour does universal indicator change to Hydrochloric acid is added?
Universal indicator changes to red/orange when hydrochloric acid is added, indicating that the solution is acidic.
Why does the indicator goes purple in sodium hydroxide solution?
The purple color in sodium hydroxide solution is an indicator of the presence of phenolphthalein, which turns pink in basic solutions. When phenolphthalein is added to sodium hydroxide solution, it reacts with the hydroxide ions in the solution to form the purple color.
What salt is formed when a solution of calcium hydroxide Ca OH2 is neutralized by hydrochloric acid HC1?
Calcium chloride (CaCl2) is formed when a solution of calcium hydroxide (Ca(OH)2) is neutralized by hydrochloric acid (HCl).
Sodium hydroxide turns universal indicator blue because it is?
Sodium hydroxide is a strong base that dissociates completely in solution to produce hydroxide ions. The presence of hydroxide ions in a solution turns universal indicator blue, indicating a high pH or alkaline condition.
Why does sodium hydroxide turn universal indicator blue?
When sodium hydroxide is added to universal indicator solution, it causes the indicator to turn blue because sodium hydroxide is a strong base. The blue color represents a high pH level, indicating that the solution has become more alkaline due to the presence of hydroxide ions released by the sodium hydroxide.
What colour is sodium hydroxide in universal indicator?
Sodium hydroxide turns Universal Indicator solution dark purple, indicating it is a strong base with a high pH level.
