The mixture of phenol and benzoic acid is separated by adding to produce brisk effervescence with sodium benzoate .
When benzoic acid react with then sodium benzoate is produced which is soluble in water and separated from non aqueous solvent . Organic compounds are soluble in organic solvent and inorganic compound mainly soluble in inorganic solvent like water.
What is brisk effervescence?
Brisk effervescence is when continuous gas evolution occurs in a chemical reaction like CO2. When HCl is added in then CO2 evolved.
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Answer:
5m/s²
Explanation:
Given parameters:
Initial velocity = 10m/s due east
Final velocity = 30m/s due east
Time = 4s
Unknown:
Acceleration of the car = ?
Solution:
Acceleration is the rate of change of velocity with time.
Mathematically;
Acceleration =
v is the final velocity
u is the initial velocity
t is the time taken
Insert the parameters and solve;
Acceleration = = 5m/s²