# 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?

Jul 3, 2016

There is no such beast as ammonium hydroxide. There is $N {H}_{3} \cdot {H}_{2} O$, at various concentrations.
$\frac{10.500 \cdot g}{36.46 \cdot g \cdot m o {l}^{-} 1} \times \frac{1}{0.100 \cdot L}$ $=$ ??mol*L^-1.
$\text{Ammonium hydroxide}$ is unknown. There is ammonia in water. This question makes no chemical sense.