Because the normal saline solution is 0,9 %.
This is a hypertonic solution.
This is a hypotonic solution used for the hydration of the organism and to improve the sodium.
A hypotonic solution of NaCl has a lower concentration of salt (NaCl) compared to the concentration of salt inside a cell. When a cell is placed in a hypotonic NaCl solution, water will move into the cell, causing it to swell, potentially leading to cell lysis if the cell cannot regulate its volume adequately.
A 10% NaCl solution is hypertonic to red blood cells. This means that the concentration of solutes outside the cells is higher than inside, causing water to move out of the cells, potentially leading to their shrinkage or dehydration.
Yes
Is_0.80_percent_NaCl_hypotonic_or_hypertonic
That depends entirely on what is in this solution. Hypotonic and hypertonic are relative terms to compare to solutions usually serperated by a semi-permeable membrane. Relative to a plant cell or e.g. a red blood cell the named solution of 0.3x10-5M NaCl is hypotonic, but compared to sea water it is hyper. A hypotonic solution contains a lesser concentration of impermeable solutes than the the inside cell. When a cell's cytoplasm is bathed in a hypotonic solution the water will be drawn out of the solution and into the cell by osmosis. If water molecules continue to diffuse into the cell, it will cause the cell to swell, up to the point that lysis (rupture) may occur.
it is hypotonicQuoting from someone else's reply to this question What_is_an_example_of_a_hypotonic_solution,"0.45% NaCl (half-normal saline solution); since normal saline is 0.9% NaCl, any solution less than 9% is hypotonic".Doesn't this mean that 10% is hypertonic?
No,5percent glucose is an isotonic solution. 0.9 percent is for NaCl.
.45 what? Grams? in that case its 0.45 grams of salt
You have to evaporate (by open boiling) 45 mL of the 75 mL 2M NaCl solution thus reducing the volume to 30 mL 5M NaCl.
That depends entirely on what solution it is in. Hypotonic and hypertonic are relative terms to compare to solutions usually serperated by a seme-permeable membrane.