Question

(a) How do you prepare a 0.094% NaCl solution? (b) Tell whether the solution in the medium outside of the cell is hypertonic, isotonic or hypotonic to the cell.

#	Inside the Cell	Outside of the Cell in the Medium
1	0.009% NaCl	0.009% NaCl
2	0.076% NaCl	0.077& NaCl
3	0.02% NaCl	0.002% NaCl
4	0.09% NaCl	0.009% NaCl

Answer 1

Ans (a) 1% solution is defined as 1 gram if substance dissolved in solvent and total volume is make upto 100 ml.

So, here it is given 0.094 % NaCl solution.

Means take 94 mg of NaCl and dissolved in solvent and volume is make upto 100 ml will give you a solution of 0.094 % NaCl.

Ans (b) The solution outside the cell in each case is hypotonic solutions with respect to inside the cell because outside concentration of NaCl is less than inside.

10.009% NaCl inside the cell and 0.009% NaCl outside, hypotonic solutions.

20.076% NaCl inside the cell and 0.077 % NaCl outside, hypotonic solutions.

30.02% NaCl inside the cell and 0.002% NaCl outside, hypotonic solutions.

40.09% NaCl inside the cell and 0.009% NaCl outside, hypotonic solutions.

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