If there is 0.2 M glucose along with 0.15 M NaCl in solution, what is the osmolarity of this solution? If there is 0.2 M glucose along with 0.15 M NaCl in solution, what is the osmolarity of this solution? 1. 500 mOsm 2. 2.15 Osm 3. 350 mOsm 4. 2.30 Osm 5. 300 mOsm

Option 5. 300 mOsm

Explanation:

Osmolarity is the sum of the concentrations of all molecular species that are "swimming" in a solvent. In this case there are two species because the water dissociates sodium chloride in Na + and Cl-. Therefore for each NaCl we will have two independent molecules. Glucose does not dissociate, so osmolarity would not be affected.

NaCl →  Na⁺  +  Cl⁻

0.15 M we have 0.15 moles/L . 2 = 0.30 Osm

As we have a value of 0.30 Osm, if we convert it to mOsm

0.30 Osm . 1000 mOsm /  1Osm = 300 mOsm

hope this

explanation:

covalent bonds

consist of pairs of electrons shared by two atoms, and bind the atoms to fixed orientation and requre high energies to break them

ionic bonds

when two atoms differ considerably in their electronegativity, then one of the atoms will lose its electron to the other atom. this results in a positively charged ion(cation) and a negatively charged ion (anion)

tracks, burrows, eggshells, nests, tooth marks, or gastroliths