Question

How many grams of NaCl are contained in 350. mL of a 0.287 M olution of sodium chloride?

Answer 1

Approx. `6*g` of salt.

Explanation:

`"Concentration"` `=` `"Moles of solute"/"Volume of solution"`

And thus, `"moles of solute"="concentration"xx"volume of solution"`.

So, `"moles"` `=` `350xx10^-3*Lxx0.287*mol*L^-1=0.100*mol`.

And `"mass of salt"` `=` `0.100*molxx58.44*g*mol=??g`