Answer:
Step-by-step explanation:
I am assuming that the 2.461 is in liters.
M=mol/liters
1) convert grams to moles
6.2 g x ( 1mole HCl / 36 g HCl) =0.172 moles
2) plug in the formula
M=0.172/2.461 = 0.06998 M HCl
Now if the 2.461 is not liters you need to convert them to liters,