The correct answer is "hydrobromic acid".
When NOT dissolved in water it is 'hydrogen bromide'. When dissolved in water it is 'hydrobromic acid'.
HBr is hydrogen bromide.
Hydrobromic Acid
Hydrobromic acid solution
HBr is hydrobromic acid. Simlarly for the other halogens. HF = hydrofluoric acid HCl = hydrochloric acid HI = hydroiodic acid (Careful with the spelling of this one). HAs = hydroastinic acid ( Not characterised).
Ka = [H+].[Br-] / [HBr] However the value of this expression is very high, because HBr is a STRONG acid, meaning that much more than 99.9% of the HBr molecules in water are protolized (ionized), making [H+] and [Br-] equal to the original (added) HBr amount, and the [HBr]-value nearly zero.
The chemical formula for Dextromethorphan Hydrobromide (HBr) is C18H25NO·HBr.
For this you need the atomic (molecular) mass of HBr. Take the number of grams and divide it by the atomic mass. Multiply by one mole for units to cancel. HBr= 81.0 grams186 grams HBr / (81.0 grams) =2.30 moles HBr
The chemical formula of hydrobromic acis is HBr.
Hydrobromic acid
In the reaction, HBr donates a proton (H+) to H2O, making HBr the acid and H2O the base. The resulting products are Br- (conjugate base of HBr) and H3O+ (conjugate acid of H2O).
This compound is HBr.