Question

How many grams of `NaCl` are needed to make .1 L of 1.20 M solution of `NaCl`?

Answer 1

Approx. `7*g`

Explanation:

`"Moles of sodium chloride"` `=` `0.1*Lxx1.20*mol*L^-1=0.12*mol`.

`"Mass of sodium chloride"` `=` `0.12*molxx58.44*g*mol^-1` `=` `?g`