Answer:
0.0125 moles of HCl
Explanation:
The equations for molarity is M=mols/L. If you divide 125mL by 1000 you will get 0.125L of HCl. You then multiply the 0.125L by 0.1M HCl. Then you will get you answer in moles of HCl which is 0.0125moles of HCl.