Asolution of 34% nacl is separated by a semipermeable membrane to a solution of 22% glucose. the membrane is only permeable to water. which direction will the net osmosis occur?

The net osmosis will occur in the direction of the NaCl solution. This is because the solute concentration on that side is greater than that of the glucose solution. Osmosis is the process by which liquids move through semi permeable membrane from the region of lower concentration to the region of higher concentration.
Thus the water is going to move from the glucose solution into the NaCl solution.

The answer would be to the 34% NaCl solution

Osmosis happens when there is a difference in the osmotic pressure. Osmotic pressure will be influenced by how many ions a molecule made in water. NaCl will make two ions, Na+ and Cl-. A glucose won't make ions. In this question, the NaCl concentration is 34%, already bigger than the 22% glucose. The net osmosis pressure for the NaCl would be bigger since it makes 2 ions. So the water definitely going to the NaCl solution

Idon't see the pic?

You use the atomic number to find out how many protons and neutrons there are in the atom. you use the atomic mass to find out how many protons and electrons there are in the atom.