What mass of NaCl is required to prepare 250.0 mL of a 0.1440 M NaCl solution?

Answer 1

You can solve this in three steps:

1) Solve for moles of NaCl

moles = molarity (g/L) * volume; plug volume= 250 mL= 0.250 L and Molarity= 0.1440M NaCl into formula

2) Calculate molar mass of NaCl using periodic table

3) moles * (molar mass in grams of NaCl / 1 mole NaCl) where moles unit cancels and you should be left with mass (grams) of NaCl required for the solution

I hope this helped!