Which substance is most likely to dissolve in greater quantities in cold water
oxygen
sugar
sodium chloride
potassium chloride
Sodium chloride is most likely to dissolve in greater quantities in cold water compared to the other substances mentioned.
How is a mole related to concentration?
The volume of particles of solute in a solution is measured in moles. The volume of particles of solute in a solution is measured in moles. The mass of the solute in a solution is measured in moles. The mass of the solute in a solution is measured in moles. The number of particles of solute in a solution is measured in moles. The number of particles of solute in a solution is measured in moles. The saturation point of a solution is measured in moles.
The number of particles of solute in a solution is measured in moles. Therefore, a mole is related to concentration as it represents the quantity of particles (atoms, molecules, ions) present in a given amount of substance. Concentration is often expressed as moles of solute per unit volume of solvent (e.g., moles per liter).
What is the pH of a 1×10−4 mol HCl solution?
6
4
2
8
The pH of a 1x10^-4 mol HCl solution is 4.
Of the substances listed, sugar is most likely to dissolve in greater quantities in cold water.
To determine which substance is most likely to dissolve in greater quantities in cold water, we need to consider the solubility of each substance. Solubility refers to the ability of a substance to dissolve in a given solvent (in this case, water) at a particular temperature.
When it comes to the substances you mentioned, oxygen is a gas and not soluble in water under normal conditions. Therefore, we can exclude oxygen from the comparison.
Now, let's consider the remaining substances: sugar, sodium chloride, and potassium chloride.
Sugar (sucrose) is a polar molecule, and it has several hydroxyl groups that can interact with the polar water molecules. As a result, sugar is highly soluble in water.
Sodium chloride and potassium chloride are both ionic compounds. In water, these compounds dissociate into their respective ions (Na+, Cl-, K+, Cl-). The polarity of water molecules helps in the dissolution of these ions due to their ionic nature. Therefore, both sodium chloride and potassium chloride are highly soluble in water.
However, when comparing the solubility of these substances in cold water, it is important to note that temperature affects solubility. In general, as temperature decreases, the solubility of most solid solutes decreases as well. Therefore, in cold water, the solubility of sugar, sodium chloride, and potassium chloride would all decrease.
However, since sugar is a non-ionic compound and generally has a higher solubility than most ionic compounds in water, it is likely to dissolve in greater quantities in cold water when compared to sodium chloride and potassium chloride.