Sudha tested the solubility of four salts X, Y, Z and T as different temperature and collected the following data. (Solubility refers to the amount in grams dissolved in 100 g of water to give a saturated solution.)Answer the following question from the table (i) Which salt has the highest and lowest solubility at 323 K ? (ii) A student prepared a saturated solution of X at 323 K and then added 25 g water to it. Water mass of X must be added to again make the solution saturated ? (iii) The solubility of which salt is least affected by increase in temperature ? (iv) What mass of 'T' would be required to make saturated solution in 200 g of water at 290 K ?

Sudha tested the solubility of four salts X, Y, Z and T as different t

1.	Sudha tested the solubility of four salts X, Y, Z and T as different temperature and collected the following data. (Solubility refers to the amount in grams dissolved in 100 g of water to give a saturated solution.)Answer the following question from the table (i) Which salt has the highest and lowest solubility at 323 K ? (ii) A student prepared a saturated solution of X at 323 K and then added 25 g water to it. Water mass of X must be added to again make the solution saturated ? (iii) The solubility of which salt is least affected by increase in temperature ? (iv) What mass of 'T' would be required to make saturated solution in 200 g of water at 290 K ?
Answer» Solution :(I) At 323 K, SALT Y has the highest solubility in water while salt Z has the lowest solubility (ii) By definition of saturated solution, 100 G of water at 323 K contain salt = 40 g 125 g of water at 323 K contain salt = `((40 g))/((100g)) xx (125 g) = 50 g` `therefore` Mass of salt to be added to make the solution again saturated = (50 - 40) = 10 g (iii) The data SHOWS that the solubility of the salt Y is least affected with increase in temperature. (iv) At 290 K, mass of T required to make the saturated in 200 g of water = `((25 g))/((100g)) xx (200g)50 g`