# How many litres of hydrogen chloride gas at STP are required to prepare 2.0L or 2.0M of Hyrdochloric acid?

Hydrochloric acid is commonly prepared by bubbling gaseous hydrogen chlored into distilled water. How many litres of hydrogen chloride gas at STP are required to prepare 2.0L or 2.0M of Hyrdochloric acid? I am just confused on where to start. HCL = Hydrogen Chloride HCL (aq) = Hydrochloric Acid Molecular... show more Hydrochloric acid is commonly prepared by bubbling gaseous hydrogen chlored into distilled water. How many litres of hydrogen chloride gas at STP are required to prepare 2.0L or 2.0M of Hyrdochloric acid?

I am just confused on where to start.
HCL = Hydrogen Chloride
HCL (aq) = Hydrochloric Acid

Molecular Mass I determined was 36.46094
I need
N=2mol
C=2mol

So am I trying to find the mass number, like converting grams into litres? But that only works with water.

These are the two formulas available.
C = N/V
C1V1 = C2V2

The answer should be 90L.
Update: I understand, I really wish my teacher gave us a constants sheet with STP on it. However if STP, the volume is always 22.4? I always thought STP was 273K, 101.325Kpa. So its moles = volume/22.4L. Got it, Thx for the quick reply, I'll best answer you asap.
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