A solution is prepared by dissolving 4.40 g of KSCN in enough water to make 340. mL of solution. What is the concentration of the solution?

a. 0.119 M
b. 0.0543 M
c. 0.133 M
d. 0.0440 M

Kinda confused which formula to use i think (w/v%) is the correct one.

4.40/340. X 100= 1.29 is what i get if i use this, none of the answers are even close to this so alittle help what am i doing wrong?

Question

A solution is prepared by dissolving 4.40 g of KSCN in enough water to make 340. mL of solution.  What is the concentration of the solution?

 a.	0.119 M
 b.	0.0543 M
 c.	0.133 M
 d.	0.0440 M


Kinda confused which formula to use i think (w/v%) is the correct one. 
 
4.40/340. X 100= 1.29 is what i get if i use this, none of the answers are even close to this so alittle help what am i doing wrong?

australopithecus · Answer

Why are you using %w/v

The unit M in your 4 options stands for Molarity, and Molarity is,

Moles/Liters

Convert grams to moles and volume to liters and then take the ratio of the two and you will get the answer you are looking for