Question

Determine a massa molecula do :
A) ca3(po4)2
B) ba(no3)2
C) al2(co3)3
D) ca(hso4)2
E) no(oh)2
Me ajudem por favor

Answer 1

a) Ca3(PO4)2 = (3*40) + (2*31) + (8*16) = 120 + 62 + 128 = 310 g/mol

b) Ba(NO3)2 = (137*1)+ (14*2) + (16*6) = 261 g/mol

c) Al2(CO3)3 = (27*2) + (12*3) + (16*9) = 234 g/mol

d) Ca(HSO4)2 = (40*1) + (1*2) + (32*2) + (16*8) = 234 g/mol

e) NO(OH)2 = (14*1) + (16*1) + (16*2) + (1*2) = 64 g/mol