1. the solubility of agno3 at 20°c is 222.0g agno3/100g h2o. what mass of agno3 can be dissolved in 250 g of water at 20°c? recall that solubility = mass of solute/ mass of solvent. 2. the solubility of methane, the major component of natural gas, in water at 20°c and 1.00 atm pressure is 0.026 g/l. if the temperature remains constant, what will be the solubility of this gas at 0.06 atm pressure? recall the relationship between solubility and pressure for gases: s1/p1 = s2/p2

Answer :

(1) The mass of silver nitrate is, 555 g

(2) The solubility of the gas will be, 0.433 g/L

Solution for Part 1 :

From the given data we conclude that

In 100 gram of water, the amount of silver nitrate = 222 g

In 250 gram of water, the amount of silver nitrate =

Therefore, the mass of silver nitrate is, 555 g

Solution for Part 2 :

Formula used :     (at constant temperature)

where,

= initial solubility of methane gas = 0.026 g/L

= final solubility of methane gas

= initial pressure of methane gas = 1 atm

= final pressure of methane gas = 0.06 atm

Now put all the given values in the above formula, we get the solubility of methane gas.

Therefore, the solubility of the gas will be, 0.433 g/L