Question

Ii) find the formula mass of
i) nacl ii) cu (no3
)
2

Answer 1

Answer:

1) NaCl

1 atom of na +1 atom of cl

formula mass of nacl

=(1×23+1×35.5) u

=58.5 u

2) cu(no3)

1 atom of cu + 1 atom of n + 3 atom of oxygen

formula mass of cu(no3)

=(1×63+1×14+3×16) u

=125u