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Marina86 [1]
3 years ago
6

A solution is a homogenous mixture of solute and solvent. there are different types of solutions. a carbonated drink is an examp

le of a solution where the solute is a gas and the solvent is a liquid. sugar crystals dissolved in water is an example of a solution where the solute is a solid and the solvent is liquid. acetic acid is miscible in water, forming a solution commonly known as vinegar. in this case, both the solute and the solvent are liquids. the solubility of solute in a solvent depends on various parameters, such as temperature, pressure, the nature of the solute, and the nature of the solvent. considering these parameters, identify the statements that are correct for the solubility of a solute in a solvent. check all that apply. hints check all that apply. table salt dissolves in water to form a solution. gases are readily soluble in water at higher temperatures. ethanol and hexane are miscible. zinc sulfate is soluble in water. carbon dioxide gas will be more soluble in water when the partial pressure is high.
Chemistry
2 answers:
bezimeni [28]3 years ago
5 0
The following statements are correct:
ZINC SULPHATE ARE SOLUBLE IN WATER.
TABLE SALT DISSOLVES IN WATER TO FORM A SOLUTION.
CARBON DIOXIDE GAS WILL BE MORE SOLUBLE IN WATER WHEN THE PARTIAL PRESSURE IS HIGH.
Nimfa-mama [501]3 years ago
5 0

Answer:

The correct statements are:  

1. Table salt is soluble in water, table salt (NaCl) get dissociate in water as NaCl = Na+ + Cl-.  

2. Zinc sulfate is also soluble in water, as zinc sulfate gets dissociate in water as ZnSO4 = Zn2+ + SO42-.  

3. The solubility of carbon dioxide gas in water increases with partial pressure and drops down with the drop in partial pressure.  

The incorrect statements are:  

1. Gases do not get easily soluble in water at high temperatures. The higher kinetic energy makes more motion in the molecules of gas which dissociate intermolecular bonds and escape from solution.  

2. Ethanol and hexane are not miscible, as ethanol is hydrophilic due to the presence of -Oh group and hexane is hydrophobic. So, these compounds will not mix.  

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Answer:

The molarity is 6.0 M.

Explanation:

<em>The </em><em>concentration</em><em> of a solution is the amount of solute present in a given amount  of solvent, or a given amount of solution.</em>

In this problem, we are asked to convert percent by mass to molarity, which are two different concentration units.

<em>The </em><em>percent by mass </em><em>is the ratio of the mass of a solute to the mass of the solution, multiplied by 100 percent.</em> On the other hand, <em>molarity (M)</em><em> is defined as the number of moles of solute per liter of solution.</em>

If we have 17.15 percent chloride ion, that means that we have 17.15 grams of chloride ion in 100 grams of solution. The density provided is the density of the solution, so we calculate how many mL correspond to 100 grams of solution:

1.23 g ----------- 1 mL

100 g ------------ <u>x= 81.3 mL</u>

Therefore, 17.5 grams of chloride ion are contained in 81.3 mL. Now we need to convert these grams into moles.

The atomic mass of chlorine is 35.5 g/mol:

35.5 g --------------- 1 mol

17.5 g --------------- <u>x= 0. 49 mol</u>

This 0.49 moles are contained in 81.13 mL, the definition of molarity says that this moles are contained in a liter (or what is the same, 1000 mL):

81.3 mL --------------- 0.49 mol

1000 mL ------------- x= 6.0 M

The molarity of the chloride ion will be 6.0 M.

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