What happens when dil. NU4OH is added to a test - tube containing phenolphthalein ?
Answers
Answer:
The colour of the final mixture when added
HClHCl
HCl to it
The colour (pink colour) will disappear.
the reaction between an acid and a base is known as neutralisation in this reaction and acid neutralizes the effect of acid and a base this reaction result in the formation of salt and water and energy in the form of heat is evolved.
Process:
fill half in test tube
HClHCl
HCl and two drops of phenolphthalein to it start it continuously. next add Sodium Hydroxide till pink colour appears now add one drop of
HClHCl
HCl the pink colour disappears so it is evident that when a solution is acidic it gives no colour this shows that neutralization reaction has occurred
Explanation:
Answer:
Phenolphthalein is an indicator of acids (colorless) and bases (pink). Sodium hydroxide is a base, and it was in the pitcher at the beginning, so when added to the phenolphthalein in beakers 2 and 4, it turned pink (top half of the graphic). The equilibrium shifts right, HIn decreases, and In- increases.
Explanation:
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