Sodium Chloride is the LEAST soluble in which of the following liquids?
a. H2O
b. CCl4
c. HF
d. CH3OH
e. CH3OOH
I know NaCl is a polar molecule...and a dipole-dipole IMF bond?
My guess is b because it's nonpolar and I think it's a London Dispersion IMF. Is this right?
Also,
Which of the following is LEAST soluble in water?
a. (NH4)SO4
b. KMnO4
c. BaCO3
d. Zn(NO3)2
e. Na3PO4
This one I took a wild guess because I'm not really sure what any of the molecules are...help with this one plz?
Thank you!
For the first one the answer is b because CCl4 is a nonpolar molecule and NaCl can only dissolve in polar/ionic substances.
The second one is c because all molecules containing NH4+ are soluble as well as K+, NO3-, and Na+
btw my guess for the second one was d.
Ah, the world of solubility, where substances either dissolve like a piece of cake or stubbornly refuse to mingle. Let me put on my clown hat and try to add some light-heartedness to the matter!
For the first question, you're absolutely on the right track! Sodium chloride (NaCl) is indeed a polar molecule due to the difference in electronegativity between sodium and chlorine atoms. So, it prefers to dissolve in other polar solvents rather than nonpolar ones. While I appreciate your speculation about CCl4 being the least soluble because of its nonpolar nature, I hate to burst your bubble – c. HF is actually the correct answer. Hydrogen fluoride (HF) is a polar compound, just like water, and thus sodium chloride doesn't like to cozy up to it.
Now, onto the second question, where solubility knows no bounds! Let's break it down:
a. (NH4)SO4: This compound consists of ammonium (NH4+) and sulfate (SO4^2-) ions, making it highly soluble in water. So, it's not the least soluble.
b. KMnO4: Here we have potassium permanganate. Now, this purple culprit may seem mighty, but alas, it is quite soluble in water. It's not the one we're looking for.
c. BaCO3: Ah, barium carbonate. This compound doesn't have a very strong affinity for water, and its solubility is relatively low compared to the other options. Ding, ding, we may have a winner!
d. Zn(NO3)2: Zinc nitrate is known to be quite soluble in water, so it's not our least soluble contender.
e. Na3PO4: Sodium phosphate is another compound that dissolves like a champ in water, leaving us with no choice but to eliminate it.
So, my friend, it looks like the misfit in the group is c. BaCO3. It's the one that's least likely to mingle and prefers to pull a disappearing act when it comes to water.
I hope my attempt at clowning around was helpful in a fun way!
For the first question, you are correct. Sodium chloride (NaCl) is a polar molecule and exhibits dipole-dipole interactions. Among the options provided, CCl4 (carbon tetrachloride) is a nonpolar molecule, and it exhibits London dispersion forces. Since sodium chloride is most soluble in polar solvents, the correct answer is b. CCl4.
For the second question, let's analyze the options:
a. (NH4)SO4: Ammonium sulfate is a highly soluble salt and therefore, it is usually very soluble in water.
b. KMnO4: Potassium permanganate is also a highly soluble salt and commonly used as an oxidizing agent in water solutions.
c. BaCO3: Barium carbonate is insoluble or slightly soluble in water. Thus, it is less soluble than the previous options.
d. Zn(NO3)2: Zinc nitrate is a soluble salt and typically dissolves well in water.
e. Na3PO4: Sodium phosphate is also a soluble salt and tends to dissolve in water.
Considering the options provided, the least soluble compound in water is c. BaCO3 (barium carbonate).
I hope this answers your questions!
To determine which liquid sodium chloride (NaCl) is least soluble in, we need to consider the nature of the solute and solvent.
Sodium chloride is indeed a polar molecule due to the difference in electronegativity between sodium and chlorine atoms, resulting in a dipole-dipole intermolecular force (IMF) bond.
Among the given liquids, CCl4 (carbon tetrachloride) is a nonpolar molecule. Nonpolar molecules have only London dispersion forces as their IMF, which are generally weaker than dipole-dipole forces.
Based on this information, your guess that sodium chloride is least soluble in CCl4 because it's nonpolar and has London dispersion IMF is correct. Therefore, the answer is (b) CCl4.
Moving on to the second question, determining the least soluble compound in water requires knowledge of the compounds and their solubility properties.
a) (NH4)SO4 is ammonium sulfate, which is highly soluble in water.
b) KMnO4 is potassium permanganate, and it is also highly soluble in water.
c) BaCO3 is barium carbonate, and it is slightly soluble in water.
d) Zn(NO3)2 is zinc nitrate, and it is highly soluble in water.
e) Na3PO4 is sodium phosphate, and it is highly soluble in water.
By analyzing the given compounds, we can conclude that the least soluble compound in water among the options is (c) BaCO3 (barium carbonate).
It's important to note that solubilities may be affected by various factors like temperature and pressure, so these conclusions are based on typical conditions.