What type of reaction takes place when sulphuric acid added to barium chloride?
acids and bases always react to give a salt and some water.
Barium sulfate is much less soluble in water than either of sodium chloride and sodium chloride. When mixed, the solubility of the barium sulfate is exceeded. The barium sulfate then precipitates as fine solids, which remain suspended but scatter light to produce the milky look. Added: Na+ (sodium ion) and Cl- (chloride ion) don't react, Only Ba2+ and SO42- do so by forming precipitate: SO42- + Ba2+ --> (BaSO4)s
Compare the amounts of precipitate that you would expect if you added barium chloride to two solutions that contained different amount of sulfate?
Because the esterification process is reversible, and we need the reaction to be one-way, the addition of sulphuric acid as a dehydrating agent stops the water from reacting with the ester to form back into an acid and alcohol. The sulphuric acid also acts as a catalyst for the reaction by protonating the carbonyl group oxygen, thus making the carbonyl group more electrophilic
Sodium fizzes in water because it is undergoing a chemical reaction with water to form sodium hydroxide. The result is more stable than either of the original chemicals. When sodium chloride is added to water both of these substances are stable with respect to each other and no reaction occurs that results in a new chemical product.
Silver nitrate (HNO3) is added to vinegar to test if chloride (Cl-) is present. Chloride ions react with silver nitrate resulting in silver chloride (solid) and nitrate ions. The reaction is : Cl-(aq) + AgNO3(aq) = AgCl(s) + NO3-(aq) In practice, it is observed by the formation of a precipitate (AgCl) in the test tube.