1.

Solution A contains 7 g/L MgCl_(2) and solution B contains 7 g/L of NaCl. At room temperature, the osmotic pressure of

Answer»

solution A is greater than B
both have same osmotic pressure
solution B is greater than A
can't determine.

Solution :`7gL^(-1)MgCl_(2)=(7)/(24+71)"mol L"^(-1)`
`=(7)/(95)" mol L"^(-1)=(7xx3)/(95)"mol L"^(-1) " of ions "=0.22M`
`7gL^(-1)NaCl=(7)/(23+35.5)M`
`=(7)/(58.5)M=(7xx2)/(58.5)"mol L"^(-1)" of ions = 0.24 M"`
As concentration of ions in NaCl solution is greater, NaCl soltuion (solution B) will have greater osmotic pressure.


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