SOLUTION: If we add x mL of 100% acid to 100 mL of 35% acid solution, the concentration C(x) of the new mixture can be expressed as a. x/x+100 b. x+0.35/100 c. x+35/x+100 d. 35/x+100

Question 393401: If we add x mL of 100% acid to 100 mL of 35% acid solution, the concentration C(x) of the new mixture can be expressed as
a. x/x+100
b. x+0.35/100
c. x+35/x+100
d. 35/x+100
Eh? Truth be told, I don't even get what I'm supposed to do.
Answer by robertb(5830) (Show Source): You can put this solution on YOUR website!
The amount of acid in the new mixture is x + 100*0.35 = x+ 35.
The volume of the new mixture is x + 100.
Therefore the concentration of the new mixture is . That is letter c.
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