What is the osmolarity in mOsM of a solution composed of the
What is the osmolarity, in mOsM, of a solution composed of the following solutes?
Enter your answer as a number. Do not use words or symbols. - 0.2 M NaCl - 0.1 M Sucrose - 0.1 M glucose
Solution
0.2 M NaCl - 0.1 M Sucrose - 0.1 M glucose
Part-1:
1M solution of glucose -----> 1 Osmolar solution (Osm) ---> becuase it is nonionizing solute
0.1 M solution of glucose ---> 0.1 Osm ---> 0.0001mOsM
Part-2:
Osmolarity = 2 * Molarity of sodium chloride (NaCl)
Given molarity of NaCl ---> 0.2 M NaCl
1Molar solution of sodium chloride (NaCl) ---> 2 Osm (of osmolarity)
0.2 Molar NaCl ---->?
= 0.4Osm or 0.4 * 10^-3 = 0.0004mOsm
Part-3:
1M solution of sucrose -----> 1 Osmolar solution (Osm) ---> becuase it is nonionizing solute
0.1 M Sucrose ----> ?
= 0.1Osm * 10^-3 ---> 0.0001mOsm
