30cm of 0.3molar solution (0.3mol) were diluted to 0.1molar solution(0.1mol) by addition of water calculate A. The new molar solution B. Volume of water added
total new volume: 30+x mL
So, looking at the total solute, which has not changed,
.3*30/1000 + 0 = .1(30/1000+x)
x = .06 = 60mL
Don't understand A. You specified that it was .1M