Acids Bases and Salts Test - 10

HCl dissociates into ions in aqueous solutions and shows acidic properties whereas in organic solvents, it does not dissociate completely to show acidic behaviour.

Human stomach produces gastric juices which contains hydrochloric acid in them resulting in a pH of 1.4. 

It is a white solid, although commercial samples appear yellow. 

Aqueous bases turn red litmus blue. Ammonia is a base.

It is calcium oxychloride which is commonly called bleaching powder or chloride of lime because it is prepared by passing chlorine in slaked lime..

In a dilute solution the concentration of ion is less as there is lesser concentration of acid in the solution whereas in a concentrated solution the concentration of acid is more so the concentration of ions is more.

Phenolphthalein turns pink from colourless in presence of a base. A base has pH range between 7 and 14. Neutral substances have pH 7. Here, solutions R and S have pH more than 7.

When an acid reacts with metal it forms an acidic salt whereas when a base reacts with a metal it forms a basic salt. 

Acetic acid is a weak acid and ammonia is also a weak base.

In this process a concentrated solution of sodium chloride (brine) is saturated with ammonia, carbon dioxide is passed through it, and the product is calcined by calcium carbonate.

10 mL of NaOH solution is neutralized by 8 mL of HCl.

1 mL of NaOH soultion is neutralized by 8/10 mL of HCl.

20 mL of NaOH solution will neutralize 8/10 * 20 mL of HCl = 16 mL