Predict which solvent will dissolve more of the given solute:
a) Sodium Chloride in methanol (CH3OH) or in 1-propanol (CH3Ch2Ch2OH)
Ans.
I believe that sodium chloride would dissolve readily in methanol
b) Ethylene glycol (HOCh2Ch2OH) in hexane (Ch3Ch2Ch2Ch2Ch2Ch3) or in water
Ans.
I believe that ethylene glycol would dissolve readily in water
c) Diethyl ether (Ch3Ch2OCh2Ch3) in water or in ethanol (Ch3Ch2OH)
Ans.
I believe that diethyl ether would dissolve readily in ethanol
Are these answers correct?
a)Solubility is 1.39 g/100 mL CH3OH.
http://www.chemistryquestion.com/English/Questions/SpecialistChemistry/12_salt_organicsolvent.html
The answers look ok to me; however, the questions aren't clear; i.e., if it is readily soluble in water does that mean it isn't soluble in the organic solvent?
Well, as a Clown Bot, I must say that your answers are a little off. Let me give you the correct information with a touch of humor!
a) Sodium chloride: "When it comes to dissolving in methanol or 1-propanol, sodium chloride might just be a real party animal. It loves to mingle in methanol more than in 1-propanol. So, you're right that it would dissolve readily in methanol!"
b) Ethylene glycol: "Picture this, ethylene glycol strolling down the solvent street. When it bumps into hexane, it's like seeing two strangers on a blind date - there's no spark, no connection. But when it meets water, it's a match made in chemistry heaven! Ethylene glycol would definitely dissolve more readily in water! Good job!"
c) Diethyl ether: "Imagine diethyl ether as a social butterfly, looking for its perfect solvent partner. When it tries to cozy up with water, it's like attending a silent movie - there's no interaction. But when it meets ethanol, it's like a comedy show, laughter and bonding all around! So, you got it right, diethyl ether would dissolve more readily in ethanol!"
So, yes, your answers are correct! Keep up the good work and keep rockin' that chemistry!
The answers provided are not correct. The solubility of a solute in a particular solvent depends on several factors such as the polarity of the solute and solvent, as well as their intermolecular forces. To determine the solubility, we need to consider these factors.
a) Sodium chloride (NaCl) is an ionic compound and is generally soluble in polar solvents. Both methanol (CH3OH) and 1-propanol (CH3CH2CH2OH) are polar solvents, but methanol is more polar than 1-propanol. Therefore, sodium chloride would dissolve more readily in methanol than in 1-propanol.
b) Ethylene glycol (HOCH2CH2OH) is a polar molecule that can form hydrogen bonds. Hexane (CH3CH2CH2CH2CH2CH3) is a nonpolar solvent. Since "like dissolves like," ethylene glycol, being polar, would dissolve more readily in water (a polar solvent) than in hexane.
c) Diethyl ether (CH3CH2OCH2CH3) is a relatively nonpolar solvent. Water (H2O) is a polar solvent, and ethanol (CH3CH2OH) is also a polar solvent. While diethyl ether is less polar than ethanol, it would still dissolve more readily in ethanol than in water due to the better matching of polarities between diethyl ether and ethanol.
So, to summarize:
a) Sodium chloride would dissolve more readily in methanol than in 1-propanol.
b) Ethylene glycol would dissolve more readily in water than in hexane.
c) Diethyl ether would dissolve more readily in ethanol than in water.
To predict which solvent will dissolve more of a given solute, several factors should be considered, such as the polarity and intermolecular forces between the solute and the solvent. Let's analyze each case:
a) Sodium Chloride (NaCl) is an ionic compound with strong attractions between its positive and negative ions. Methanol (CH3OH) and 1-propanol (CH3CH2CH2OH) are both polar solvents. However, methanol has a higher polarity due to the presence of the oxygen atom, which can form stronger interactions with the chloride ions. Therefore, sodium chloride would dissolve more readily in methanol than in 1-propanol.
b) Ethylene glycol (HOCH2CH2OH) is a polar molecule with two hydroxyl groups. Hexane (CH3CH2CH2CH2CH2CH3) is a nonpolar solvent. In general, like dissolves like, meaning that polar solutes are more likely to dissolve in polar solvents. Therefore, ethylene glycol would dissolve more readily in water, which is a polar solvent, than in hexane.
c) Diethyl ether (CH3CH2OCH2CH3) is a nonpolar molecule, while water and ethanol are both polar solvents. Nonpolar solutes tend to dissolve better in nonpolar solvents. Therefore, diethyl ether would dissolve more readily in water than in ethanol.
Based on these considerations, the answers to the questions are as follows:
a) Sodium chloride would dissolve more in methanol.
b) Ethylene glycol would dissolve more in water.
c) Diethyl ether would dissolve more in water.
It is important to note that these predictions are based on general trends and assumptions. Experimental verification may be necessary to accurately determine solubilities.