Question

To make a saturated solution 36g of sodium chloride is dissolved in 100g of water at 293 K. Find its concentration at this temperate in terms of mass by mass percentage of the solution.

Answer 1

ʜᴇʟʟᴏ ᴍᴀᴛᴇ

First of all! Let's convert 293 K into C

t°C = t°K - 273
C = 293 - 273 or 20°C

So, we know that 20°C is approximately room temperature and will not create any different in saturation level.

Now,

Mass of solute = 36g

Mass of solvent = 100g

Mass of solution = 36g + 100g = 136g

Concentration = [ ( 36 / 136 ) × 100 ]%
= 26.47%

Hope it helps