Qual massa molecular do cromato de potássio (K2CrO4). K=39, Cr=52, O=16
foto:
A) 194 g/mol
B) 195 g/mol
C) 196 g/mol
D) 197 g/mol
![Qual Massa Molecular Do Cromato De Potássio K2CrO4 K39 Cr52 O16 Foto A 194 Gmol B 195 Gmol C 196 Gmol D 197 Gmol class=](https://pt-static.z-dn.net/files/d18/cc11f90574188879fedbad6d62b5c643.jpg)