Question

what is the concentration of NaCl in solution made by mixing 25.0 mL of .100 M NaCl with 75.0 mL of .175 M NaCl

Answer 1

0.125 M NaCI

Step-by-step explanation:

on edge

Answer 2

0.15625M

Step-by-step explanation:

When you mix two liquids of the same solute and solvent but with different concentration and amounts then the resulting solutions molarity is given by

C
`c_(resulting) * totalvolume=c_(1) v_(1) +c_(2) v_(2)`.

in the above case given,

c1=0.1M

v1=25mL

c2=0.175M

v2=75mL

total volume=v1+v2=25+75=100mL.

so substituting thse values in the above equation gives C_{equivalent}[/tex]=15.625\100=0.15625M