Answers by visitors named: Jordin

Thank you! So, is this correct? moles HCl = M x L = .2409 X .01232 = .00297 moles Na2CO3 = 1/2 moles HCl (from the equation). = .00297 / 2 = .00148 g Na2CO3 = moles x molar mass .00148 X 106 = .157 %Na2CO3 = (mass Na2CO3/mass sample)*100 = ?? .157 / .2528...

Oh ok, I see what I did now. Thank you for the help! : )

ya Mum.

the answer is C.

2.4 meters