In comparing normal blood concentrations are the solution 0.01% (m/v) NaCl isotonic, hypertonic, or hypotonic and could you explain?
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To determine if a solution of 0.01% (m/v) NaCl is isotonic, hypertonic, or hypotonic, we need to compare it to the normal concentration of NaCl in blood.
Normal blood concentration is around 0.9% (m/v) NaCl, which is known as physiological saline or normal saline.
Since the 0.01% (m/v) NaCl solution has a lower concentration of NaCl compared to normal blood concentration, it is considered hypotonic.
In a hypotonic solution, there is a lower solute concentration outside the cell compared to inside the cell. When a cell is placed in a hypotonic solution, water molecules move from the hypotonic solution into the cell. This movement of water can cause the cell to swell or even burst, which is known as hemolysis for red blood cells.
So, in summary, a 0.01% (m/v) NaCl solution is hypotonic compared to normal blood concentration.
To determine whether a 0.01% (m/v) NaCl solution is isotonic, hypertonic, or hypotonic compared to normal blood concentrations, we need to understand the concept of tonicity.
Tonicity refers to the relative concentration of solutes outside and inside a cell or biological system. It describes the osmotic pressure difference across a cell membrane and how it affects the movement of water.
To compare the tonicity of a solution with normal blood concentrations, we need to know that normal blood has an osmolarity of about 300 milliosmoles per liter (mOsm/L). This value includes various solutes like electrolytes, proteins, glucose, and other molecules.
In this case, we have a 0.01% (m/v) NaCl solution. To determine its molarity, we would need to know the molecular weight of NaCl. NaCl has a molecular weight of approximately 58.44 grams per mole (g/mol). So, for a 0.01% (m/v) NaCl solution, we can calculate the molarity as follows:
Mass of NaCl = (0.01 g / 100 mL) x Volume of solution
Moles of NaCl = Mass of NaCl / Molecular weight of NaCl
Molarity of NaCl = Moles of NaCl / Volume of NaCl solution
By performing these calculations, we can find the molarity of the 0.01% (m/v) NaCl solution. Then, we can compare it to the normal blood osmolarity of 300 mOsm/L to determine its tonicity.
However, it's worth noting that normal blood is a complex solution with various solutes, not just NaCl. Therefore, comparing the tonicity solely based on the NaCl concentration may not provide a comprehensive assessment. It's usually best to consider the overall osmolarity of a solution when evaluating its tonicity compared to normal blood.