Question

Determine a massa molecular de:

a)Ca3(PO4)2

b)Ba(NO3)2

c)Al2(CO3)3

d)Ca(HSO4)2

e)Ni(OH)2

f)H4Fe(CN)6

g)(NH4)3Fe(CN)6

h)Bi2(SO3)3

i)Fe4(P2O7)3

j)Al2(C2O4)3

Answer 1

Resposta:

a)310.177 g/mol

b)261.340 g/mol

c)233.991 g/mol

d) 234.221 g/mol

e) 92.708 g/mol

f)215.985 g/mol

g) 266.069 g/mol

h)658.153 g/mol

i)745.218 g/mol

j) 318.022 g/mol

Explicação:

multiplicar a massa do elemento por quantidade de moleculas!

Ex CH4

C= 12

H=1

logo  12+1x4: 12+4: 16....   massa molecular 16