True, of course. But you don't need to know that to solve the problem -
you just need to know that a dalton is a gram per mole. That the mole in
question is strictly carbon-12 baryons (plus a corresponding share of an
electron cloud) is, for this purpose, unimportant. I'm assuming that
"treating it like sodium chloride" implies knowing the mole - dalton -
gram relationship, even if not the precise origin of the definition.
Tom Anderson, MRC Laboratory for Molecular Cell Biology, UCL, London WC1E 6BT
(t) +44 (20) 76797264 (f) +44 (20) 76797805 (e) [Only registered users see links. ]