titration question on dilution (1 Viewer)

[girlworld_club]

how do you answer b?

http://sphotos-h.ak.fbcdn.net/hphotos-ak-prn1/v/1014285_10151691250580196_1779513782_n.jpg?oh=3f1850e3b93c5b81321d9bec2ccc9a67&oe=51B9CC5E&__gda__=1371186905_f395ad3e3129f033a6ea69b52bcdea19


please show full working. i am stuck.

 

[girlworld_club]

this is urgent. thank you so much.

 

[ocatal]

The link doesn't work..