What is the molarity of a solution containing 23g of NaCl in 500 mL of Solution? (The molecular mass of NaCl is 58.44.) I need some help solving this. Thanks! :)

a.) 46 M
b.) 2.7 M
c.) 0.79 M
d.) 0.50 M

Question

What is the molarity of a solution containing 23g of NaCl in 500 mL of Solution? (The molecular mass of NaCl is 58.44.) I need some help solving this. Thanks! :)

a.) 46 M 
b.) 2.7 M 
c.) 0.79 M 
d.) 0.50 M

mertsj · Answer

What is the molecular weight of NaCl?

mertsj · Answer

Oh.  Sorry.  I see it now.  It is posted.

e.cociuba · Answer

Ya :)

e.cociuba · Answer

Do I use this formula:|dw:1366232053280:dw| ??

mertsj · Answer

$$\frac{23 g NaCl}{500 ml solution}\times \frac{1 mole NaCl}{58.44 g NaCl}\times\frac{1000 ml}{1L}$$

mertsj · Answer

Yes.  You could use the formula you posted but you would have to change the grams to moles first because that formula says that molarity = number of moles/volume

e.cociuba · Answer

|dw:1366232265513:dw| I need help on wat to do after tht...