What is the ka of 0.168m solution of hydrocyanic acid (hcn) with ph of 3.15?

Akno3 solution containing 51 g of kno3 per 100.0 g of water is cooled from 40 ∘c to 0 ∘c. what will happen during cooling?

When a beta particle is emitted, the mass number of the nucleus a. decreases by one b. increases by one c. remains the same d. decreases by two

How does the attraction between particles affect the ability of a solvent to dissolve in a substance