iran-konkur 2017 Q232

iran-konkur · Other · konkur-riazi_1396_specialized Not Maths
232 -- By adding 1 milliliter of a 10 molar hydrochloric acid solution to 1 liter of pure water, the approximate concentration of the resulting solution in ppm and the color of methyl red in this solution are:
$$(\text{HCl} = 36/5\ \text{g.mol}^{-1}\ \text{ and }\ d_{\text{solution}} = 1\ \text{g.mL}^{-1})$$
\begin{align*} &(1) 365,\ \text{yellow} (2) 365,\ \text{red} (3) 36/5,\ \text{yellow} (4) 36/5,\ \text{red} \end{align*}
\textbf{232 --} By adding 1 milliliter of a 10 molar hydrochloric acid solution to 1 liter of pure water, the approximate concentration of the resulting solution in ppm and the color of methyl red in this solution are:

$$(\text{HCl} = 36/5\ \text{g.mol}^{-1}\ \text{ and }\ d_{\text{solution}} = 1\ \text{g.mL}^{-1})$$

\begin{align*}
&(1)\quad 365,\ \text{yellow} \qquad (2)\quad 365,\ \text{red} \qquad (3)\quad 36/5,\ \text{yellow} \qquad (4)\quad 36/5,\ \text{red}
\end{align*}