**TI82** TxtView file generated by CalcText - Kouri§ ˜Composit˜–˙Composition massique%C= [m(C)/M]* 100 = [x*M(C)/ M] * 100 M : masse molaire de Cx Hy Oz %C + %H + %O = 100 x*M(C)+ y*M(H)+ z*M(O)= M ˙*