Courses
Courses for Kids
Free study material
Offline Centres
More
Store

# How many grams of salt can be dissolved in $100g$ of ${H_2}O$ at $80$ degree Celsius?

Last updated date: 16th Jun 2024
Total views: 371.7k
Views today: 3.71k
We need to calculate the grams of salt that can be dissolved in $100g$ of ${H_2}O$ at $80$ degree Celsius. Given that solvent is water. Let us take sodium chloride (NaCl), commonly known as table salt as the solute. Now we need to determine the weight of NaCl that can be dissolved in $100g$ of ${H_2}O$ at $80$ degree Celsius.
Solubility of a substance in a solvent increases with temperature. Solubility of NaCl in water at room temperature is approximately $35g/100g$ water. The temperature given in the question is $80{}^0C$ . As solubility increases with temperature, more NaCl can be dissolved in $100g$ of water at $80{}^0C$. For NaCl, increase in solubility with temperature is much less compared to other salts like $NaN{O_3}$ , $CaC{l_2}$ , KCl etc. Hence approximately $40g$ NaCl can be dissolved in $100g$ of water at $80{}^0C$ .
We can get an unsaturated solution of sodium chloride if we dissolve less than $40g$ of NaCl in $100g$ of water at $80{}^0C$ . A saturated solution of sodium chloride can be obtained by dissolving approximately $40g$ of NaCl in $100g$ of water at $80{}^0C$ .