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
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
5 answers
No I was not given the density value? What is recommended to go from mL to moles instead?
No I was not given the density value.*
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.
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.
1 answer