Question

VA ROGGGG AJUTAȚI- MA
a) In ce cantitate de soda caustica de afla in 46 g Sodiu
b) Ce cantitate de sodiu de afla in 210 grame in soda caustica
VA ROGGGGGGGGGGGGGGG DAU COROANĂ

Answer 1

46 g  Na
x g NaOH               MNaOH=23+16+1=40
                             4O g NaOH----------23 g Na
                              x g NaOH-----------46 g Na
                          x=40.46:23=80 g NaOH



210 g NaOH               MNaOH= 40
YgNa                        40 g NaOH----------23 gNa
                                 210 g NaOH-------Y g Na
                             Y=210.23:40=120,75 g Na