A sample of 0.3220 g of an ionic compound containing the bromide ion is dissolved in water and treated with an excess of silver nitrate, AgNO3. a) If 0.6964 g of silver bromide (AgBr) precipitate is formed, what is the percent by mass of bromine in original compound?
b) Does this technique (gravimetric analysis) determine the complete identity of the unknown substance? Why/ why not

Astudent states that 9.0 g of baking soda will form an unsaturated solution in 100 g of water. what do you need to know to decide whether this statement is correct? a. the temperature of the water and the molar mass of baking soda b. the percent by volume of the solution and the solubility of baking soda c. the temperature of the water and the solubility of baking soda at that temperature