What amount of `CaCl_2` (i=2.47) is dissolved in 2 litres of water so that its osmotic pressure is 0.5 atm at `27^@` C ?

Question

What amount of `CaCl_2` (i=2.47) is dissolved in 2 litres of water so that its osmotic pressure is 0.5 atm at `27^@` C ?

What amount of `CaCl_2` (i=2.47) is dissolved in 2 litres of water so that its osmotic pressure is 0.5 atm at `27^@` C ?
A. 3.42 g
B. 9.24 g
C. 2.834 g
D. 1.820 g

Monjur Alahi

5 views

2025-01-04 04:42

1 Answers

Related Questions

At 298 K, `1000 cm^(3)` of a solution cocontaining 4.34 g solute shows osmotic pressure of 2.55 atm. What is the molar mass of solute ? `(R=0.0821Latm

2 Answers 6 Views

Calculate the change in entropy for the process : \( H _{2} O _{\left(\text {liq, } 20^{\circ} C , 1 atm \right)} \) to \( H _{2} O _{\left.\text {(gas, } 250^{\circ} C , 1 atm \right)} \) You are given, heat capacity of water \( ( \) liq \( )=75.6 JK ^{-1} \cdot mol ^{-1} \) Heat capacity of water \( ( \) vap \( )=36.2 JK ^{-1} mol ^{-1} \) Heat of vaporization of \( H _{2} O \) at \( 100^{\circ} C \) and \( 1 atm 40.85 JK mol ^{-1} \)

2 Answers 4 Views

निम्न को उत्पन्न करने के लिए फैराडे के रूप में कितनी विद्दुत की आवश्यकता होगी - (i) गलित `CaCl_2` से Ca के 20 ग्राम ? (ii) गलित `Al_2O_3` से Al के 40

2 Answers 4 Views

How much electricity in terms of Faraday is required to produce 100 g of Ca from molten `CaCl_2` ?

2 Answers 7 Views

A balloon contains `500m^(3)` of He at `27^(@)C` and 1 atm pressure. Then , the volume of He at `-3^(@)C` and 0.5 atm pressure will be

2 Answers 4 Views

Determine the amount of `CaCl(i=2.47)` dissolved in `2.5L` of water such that its osmotic pressure is `0.75atm ` at `27^(@)C`.

2 Answers 4 Views

One mole each of urea, glucose and sodium chloride were dissolved in one litre of water. Equal osmotic pressure will be produced by solutions of

2 Answers 4 Views

The pressure of gas at `100^(@)C` is 2 atm. When the gas is heated at constant volume. At what temperature the pressure raises to 3 atm?

2 Answers 6 Views

A cylinder contains oxygen at pressure of 28 atm and at a temperature of 300 K. the mass of oxygen the gas, the pressure is found to be 7 atm and the

2 Answers 4 Views

A gas expands from 75 litres to 125 litres constant pressure of 4 atmosphere. Work done by the gas during this change is `(10atm=10^(5)Nm^(-2))`

2 Answers 5 Views

Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

Salim Ahmed Kawsar

Correct Answer - D
`pi=iCRT = I n/V RT`
`n=(pixxV)/(ixxRxxT) =(0.5xx2)/(2.47xx0.0821xx300)`=0.0164 mol
Amount of `CaCl_2=n xx M =0.0164 xx 111` = 1.820 g

5 views Answered 2023-02-05 15:29