In a solution of KBr and water; KBr is the solute and water is the solvent;
Therefore; to achieve 3% by mass; it means we are going to have 3% of the mass being the solute and the other 97 % being the solvent.
Thus; KBr (solute) = 3/100 × 300 (total mass) = 9 g
Hence; the appropriate masses will be; 9.00 g of KBr and 291 g of water.
Answer:
answer will be 3.08 mol ig.....
I guess is weak alkaline. when the substance is more acidic, there will be less alkalinity
<span>a regultate is to control or direct by a rule, principle, or method.</span>
