How much sodium chloride can dissolve in 40 g of water at 50°C?
With a solubility of 37g/100mL at 50’C and a water density of 0.988 g/mL at the same temperature, 40g of water would be 40.49 mL, so it could dissolve
100 mL water (at 50 degrees) can dissolve 37 grams of NaCl.
According to Volland (2005), 100 mL water can dissolve 37 grams of NaCl. Since you have 40 grams of water, it means at 50 degrees you have
Now you can compute solved NaCl by:
The answer is
The Engineering Toolbox (2017). Water Density and Specific Weight. Retrieved on the internet: www(dot)engineeringtoolbox(dot)com(slash)water(dash)density(dash)specific(dash)weight(dash)d_595(dot)html
Volland, W. (2005). Online Introductory Chemistry. Retrieved on the Internet: www(dot)800mainstreet(dot)com(slash)9(slash)0009(dash)004(dash)solub(dot)html