9.
Calculate the amount of a 6.00 M CaCl2 stock solution needed to make 250.0 mL of a 1.50 M CaCl2 solution.

0.2348 grams of pbcl2 used to form 44.0 ml of solution.

Calculate the number of molecules present in 0.750 mol of mgo.

The lattice enthalpy (formation of ionic solid from ions in the gas phase) for agcl(s) is -916 kj/mol and the hydration enthalpy (dissolution of gaseous ions into water) is -850 kj/mol. how much heat (in joules) is involved in forming 1l of saturated agcl solution (1.8 × 10-4 g / 100 ml water) by dissolving agcl(s)? assume solution volume does not change much upon dissolution. the equations are given below. ag+(g) + cl−(g) æ agcl(s)