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Mnenie [13.5K]
3 years ago
11

A colligative property of a solution is one that depends 1. on the identity of the solute and the concentration of the solution.

2. only on the concentration of the solution. 3. only on the identity of the solvent. 4. on the identity of the solvent and the concentration of the solution. 5. only on the identity of the solute.
Chemistry
1 answer:
Tanzania [10]3 years ago
5 0

Answer:

The correct answer is option 2.

Explanation:

Colligative property is defined as property which depends upon only on the numbers of particles of solute dissolved in definite amount of  solvent, It do not depend on the nature of the solute.

For example : NaCl solution with 0.4 molal will show same colligative properties as a that of the glucose solution with 0.04 molal concentration.

The following are the examples of colligative property:

1. Relative lowering of vapor pressure.

2. Osmotic pressure

3. Elevation in boiling points

4. Depression in freezing point

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A solution of H2SO4 (90.08 g/mol) has 785.6 g of H2SO4 and 359 g of H2O. What is the molal concentration (molality)?
tekilochka [14]

The molality of H₂SO₄ solution is 24.2 m.

<u>Explanation:</u>

We need to find the molality of sulfuric acid.

Mass of sulfuric acid = 785.6 g

Mass of water = 359 g

We have to find the moles of H₂SO₄ by using its mass and molar mass as,

Moles of H₂SO₄ = $\frac{785.6g}{90.08 g/mol}

                         = 8.7 moles

Mass of the solution in kg =$\frac{359}{1000} =  0.359 kg

Molality = $\frac{moles}{solvent (kg)}

           = $\frac{8.7 mol }{0.359 kg}\\

          = 24.2 m

So molality of the H₂SO₄ solution is 24.2 m.

8 0
3 years ago
Expliquen como prepararian una solucion homogenea y heterogenea
muminat

Una mezcla homogenea es una mezcla solida, liquida o gaseosa que tiene las mismas proporciones de sus componentes en cualquier muestra dada. A la inversa, una mezcla heterogenea tiene componentes cuyas proporciones varian a lo largo de la muestra. "Homogeneo" y "heterogeneo" no son terminos absolutos sino que dependen del contexto y del tamano de la muestra. En quimica, una suspension homogenea de material significa que cuando se divide el volumen a la mitad, la misma cantidad de material se suspende en ambas mitades de la sustancia; sin embargo, podria ser posible ver las particulas bajo un microscopio. Un ejemplo de una mezcla homogenea es el aire.

5 0
3 years ago
How many moles are in 454 grams of dinitrogen trioxide (N2O3) ?
balu736 [363]

Answer:

5.97 mol

Explanation:

To find the number of moles when given the mass of a substance, we divide the mass of the sample by its molar mass.

so, we get,

nN203 = 454 g / 76.01 g /mol

= 5.97 mol

6 0
4 years ago
Which of the following have the most similar properties?
frutty [35]
B because they are in the same periodic table group
5 0
4 years ago
In the following list, only ________ is not an example of a chemical reaction. the production of hydrogen gas from water the tar
Vika [28.1K]

Answer: Option (c) is the correct answer.

Explanation:

A chemical reaction is defined as the reaction where a chemical bond will break in order to form a new bond due to the formation of a new substance.

For example, 2Na + Cl_{2} \rightarrow 2NaCl

Here, NaCl is the new substance that is formed. A chemical reaction will always bring change in chemical composition of a substance.

The production of hydrogen gas from water, the tarnishing of a copper penny, charging a cellular phone and burning a plastic water bottle are all chemical reactions.

Whereas a reaction where no change in chemical composition of a substance takes place is known as a physical reaction.

For example, chopping a log into sawdust will change the shape but it will not bring any change in chemical composition of the substance.

Thus, we can conclude that in the following list, only chopping a log into sawdust is not an example of a chemical reaction.

8 0
3 years ago
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