Question

What is the molar concentration of `HCl` if a `10.5*g` mass of the acid is made up to a volume of `100*mL` in water?

Answer 1

There is no such beast as ammonium hydroxide. There is `NH_3*H_2O`, at various concentrations.

Explanation:

We can work out the concentration of the hydrochloric acid:

`(10.500*g)/(36.46*g*mol^-1)xx1/(0.100*L)` `=` `??mol*L^-1`.

`"Ammonium hydroxide"` is unknown. There is ammonia in water. This question makes no chemical sense.