Question

For an experiment, we used 10 mL of HCl. We are then to find the moles of it without any other information given. Is this right?
(10 mL HCl)* (1.19 g / mL) = 11.9 g HCl
(11.9 g HCl) * (1mol/36.46064 g)
= 0.326 mols HCl

Answer 1

Were you given this density value?
(1.19 g / mL) ?

A published value for concentrated HCl at 1.19 g/mL has a molarity of 12.39 M. (see ref)

Value of molarity obtained from density is very approximate.

Ref:
https://en.wikipedia.org/wiki/Hydrochloric_acid

Answer 2

No I was not given the density value? What is recommended to go from mL to moles instead?

Answer 3

No I was not given the density value.*

Answer 4

How do you expect to get from mL to moles if you do not know how much HCl is in the water? Where did you get the 1.19 ? That is why we do not understand your answer.

Answer 5

Abby, you need either the molarity of the HCl or some way to calculate the molarity. The density will do it or the molarity will do it; otherwise, it can't be done. Expecting to convert mL to mols without knowing how strong the solution is is like asking how many apples there are in a bushel without knowing the size of the apples.