Which one of the following pairs of solution can we expect to be isotonic at the same temperature?

Question

Which one of the following pairs of solution can we expect to be isotonic at the same temperature? (A) 0.1 M urea and 0.1 M NaCl (B) 0.1 M urea and 0.2 M MgCl2 (C) 0.1 M NaCl and 0.1 M Na2SO4 (D) 0.1 M Ca ( NO 3)2 and 0.1 M Na 2 SO 4

Tardigrade Admin · Accepted Answer

Here 0.1 M Ca ( NO 3)2 and 0.1 M Na 2 SO 4 are isotonic at same temperature as follows π[ Ca ( NO 3)2]= iCRT =3 × 0.1 RT =0.3 RT π[ Na 2 SO 4]= iCRT =3 × 0.1 RT =0.3 RT

Q. Which one of the following pairs of solution can we expect to be isotonic at the same temperature?

0.1 M urea and 0.1 M NaCl

0.1 M urea and 0.2 M $M g C l_{2}$

0.1 M NaCl and 0.1 M $N a_{2} S O_{4}$

$0.1 MC a_{(N O_{3})_{2}}$ and $0.1 MN a_{2} S O_{4}$

Here $0.1 MC a_{(N O_{3})_{2}}$ and $0.1 MN a_{2} S O_{4}$ are isotonic at same temperature as follows $π [C a (N O_{3})_{2}] = i CRT$
$= 3 \times 0.1 RT = 0.3 RT$
$π [N a_{2} S O_{4}] = i CRT$
$= 3 \times 0.1 RT = 0.3 RT$

Q. Which one of the following pairs of solution can we expect to be isotonic at the same temperature?

0.1 M urea and 0.1 M NaCl

0.1 M urea and 0.2 M MgCl2​

0.1 M NaCl and 0.1 M Na2​SO4​

0.1MCa(NO3​)2​​ and 0.1MNa2​SO4​

Here 0.1MCa(NO3​)2​​ and 0.1MNa2​SO4​ are isotonic at same temperature as follows π[Ca(NO3​)2​]=iCRT =3×0.1RT=0.3RT π[Na2​SO4​]=iCRT =3×0.1RT=0.3RT

0.1 M urea and 0.2 M $M g C l_{2}$

0.1 M NaCl and 0.1 M $N a_{2} S O_{4}$

$0.1 MC a_{(N O_{3})_{2}}$ and $0.1 MN a_{2} S O_{4}$

Here $0.1 MC a_{(N O_{3})_{2}}$ and $0.1 MN a_{2} S O_{4}$ are isotonic at same temperature as follows $π [C a (N O_{3})_{2}] = i CRT$
$= 3 \times 0.1 RT = 0.3 RT$
$π [N a_{2} S O_{4}] = i CRT$
$= 3 \times 0.1 RT = 0.3 RT$