Question

1. Consultando a tabela de massas âtomicas determine a massa molar de:?
a)h2c03
b)h4p207
c)c6h1206
d)A12(so4)3
e)fe2(co3)3
f)ca3(po4)2
g)(nh4)2s

Answer 1

a) 4+12+3=19
b)4+207=11
c)6+1206=1212
d)12+(32+4).3=120
e)2+(12+3).3=47
f)3+(31+4).2=73
g)(14+4).2+32=68