In one molal solution that contains $0.5 \ mol$ of a solute,there is

If $5.85 \ g$ of $NaCl$ is dissolved in $72 \ g$ of water,find the mole fraction of $NaCl$.

What is the mass ratio of ethylene glycol $(C_2H_6O_2, \text{molar mass} = 62 g/mol)$ required for making $500 g$ of $0.25 m$ aqueous solution and $250 mL$ of $0.25 M$ aqueous solution?

The density of liquid $HCl$ is $1.17 \ g/cm^3$. What is its molarity?

How many moles and grams of sodium chloride are present in $200 \ cm^3$ of $0.2 \ M \ NaCl$ solution?

$6 \ g$ of urea (molar mass $= 60 \ g \ mol^{-1}$) and $9 \ g$ of glucose (molar mass $= 180 \ g \ mol^{-1}$) were dissolved in $35 \ g$ of water. The mass percent of urea and glucose is respectively: