(C) For isotonic solutions, the effective concentration (osmolarity) must be the same: $i_1C_1 = i_2C_2$. Assuming complete dissociation: For $0.03 \

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$0.03 \ M \ NaCl$ and $0.02 \ M \ MgCl_2$

(C) For isotonic solutions, the effective concentration (osmolarity) must be the same: $i_1C_1 = i_2C_2$. Assuming complete dissociation: For $0.03 \ M \ NaCl$: $i = 2$, so $iC = 2 \times 0.03 = 0.06 \ M$. For $0.02 \ M \ MgCl_2$: $i = 3$, so $iC = 3 \times 0.02 = 0.06 \ M$. Since the $iC$ values are equal, the solutions are isotonic.

Class 12 Chemistry Solutions Osmosis and Osmotic pressure of the solution

Medium

Assuming the compounds to be completely dissociated in aqueous solution, identify the pair of the solutions that can be expected to be isotonic at the same temperature.

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A
$0.01 \ M$ urea and $0.01 \ M \ NaCl$
B
$0.02 \ M \ NaCl$ and $0.01 \ M \ Na_2SO_4$
C
$0.03 \ M \ NaCl$ and $0.02 \ M \ MgCl_2$
D
$0.01 \ M$ sucrose and $0.02 \ M$ glucose

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Assuming the compounds to be completely dissociated in aqueous solution, identify the pair of the solutions that can be expected to be isotonic at the same temperature.

Similar Questions

What is the relationship between the osmotic pressures of $6.00 \ g \ L^{-1}$ $CH_3COOH$ $(\pi_1)$ and $7.45 \ g \ L^{-1}$ $KCl$ $(\pi_2)$ solutions?

Assertion : If red blood cells were removed from the body and placed in pure water,pressure inside the cells increases.Reason : The concentration of salt content in the cells increases.

Discuss the biological and industrial importance of osmosis.

When the temperature of a certain solution is increased from $37\, ^\circ C$ to $327\, ^\circ C$,how many times will the osmotic pressure change?

Determine the amount of $CaCl_2$ $(i=2.47)$ dissolved in $2.5 \ L$ of water such that its osmotic pressure is $0.75 \ atm$ at $27^{\circ}C$.

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Assertion : If red blood cells were removed from the body and placed in pure water,pressure inside the cells increases.
Reason : The concentration of salt content in the cells increases.