If $5.0 \ g$ of $BaCl_2$ is present in $10^6 \ g$ solution,the concentration is .......... $ppm$.

$450 \ mg$ of glucose is dissolved in $100 \ g$ of solvent. What is the molality of the solution (in $m$)?

$A$ solution of $H_2O_2$ used for hair bleaching contains approximately $5.0 \ g$ of $H_2O_2$ per $100 \ mL$ of solution. If the molar mass of $H_2O_2$ is $34 \ g/mol$,what is the molarity of this solution?

When $1.80 \ g$ of glucose is dissolved in $90 \ g$ of $H_2O$,the mole fraction of glucose is:

Which of the following solutions has the highest normality?

The sum of the mole fraction of the components of a solution is