calculation

[stefg123]

ranitidine tabs available containing ranit hcl equiv to 150mg and 300mg ranit

to prepare ranit 150mg tabs
what weight of ranit hcl is needed in each tab

ranit C13 H22 N4 O3 S MOLECULAR WEIGHT 314.4
RANIT HCL C13 H22 N4 O3 S.HCL MOLECULAR WEIGHT 350.9

Can anyone help me
thanks

ps its pbly really easy but i cant do it

[johnep]

Re: calculation

Simple proportion in ratio of Molecular weights.
johnep