Answer is: Na2HAsO4 and Na2SO4. 1) Solubility of
NaCl
(sodium chloride) at 40°C is 36.3 grams.
Which refers to the amount of a solute that will dissolve in a given volume of solvent at a given temperature and pressure quizlet?
Unsaturated. Which refers to the amount of a solute that will dissolve in a given volume of solvent at a given temperature and pressure?
solubility
.
supersaturated
.
Which refers to the amount of a solute that will dissolve in a given volume of solvent at a given temperature?
Solubility
. the maximum amount of solute that will dissolve in a given amount of solvent at a specific temperature and pressure. Saturated solution.
Which term best describes the solution before the crystal?
Immediately, crystals form in the solution. Which term best describes the solution before the crystal was added? …
The solution is then heated, and many more solute crystals dissolve.
What property of the unknown substance was the chemist most likely investigating?
When the chemist found that 33 g of an unknown solute had dissolved in 100 mL of water, he was therefore most likely trying to determine that
substance's solubility in water
. The solubilities of substances are specific to each individual solute.
Which is the first step in the dissolving process?
- Step 1: Separate particles of the solute from each other [ENDOTHERMIC]
- Step 2: Separate particles of the solvent from each other [ENDOTHERMIC]
- Step 3: Combine separated solute and solvent particles to make solution [EXOTHERMIC]
Which is the second step in dissolving process?
When solute particles break down, it gets surrounded with the solvent particles and it results in the Hydration enthalpy of the particles. Hence, the second step of dissolving process is
when solvent molecules surround the solute molecules
.
What is the solubility of KCl at 40 C in 100 grams of water?
The solubility of KCl at 40 degrees Celsius is
39 g in 100
g of water.
Which two liquids will dissolve in each other?
When two liquids can be readily combined in any proportions, they are said to be miscible. An example would be
alcohol and water
. Either of the two can totally dissolve each other in any proportion. Two liquids are defined as immiscible if they will not form a solution, such as oil and water.
Does higher concentration mean higher solubility?
The extent of the solubility of a substance in a specific solvent is measured as the saturation concentration, where adding
more solute does not increase the concentration
of the solution and begin to precipitate the excess amount of solute.
Which best describes the Tyndall effect?
The Tyndall Effect is the
effect of light scattering in colloidal dispersion, while showing no light in a true solution
. This effect is used to determine whether a mixture is a true solution or a colloid.
Which best defines concentration?
In chemistry, concentration refers to
the amount of a substance per defined space
. Another definition is that concentration is the ratio of solute in a solution to either solvent or total solution. Concentration usually is expressed in terms of mass per unit volume.
Which statement would indicate the presence of an acid quizlet?
Which statement would indicate the presence of an acid?
It reacts with active metals to form a gas.
Which method would increase the solubility of gas?
An increase in pressure and an increase in temperature
in this reaction results in greater solubility. An increase in pressure results in more gas particles entering the liquid in order to decrease the partial pressure. Therefore, the solubility would increase.
Which action most likely occurred in order for the sugar to dissolve?
Breaking up, crushing or grinding a sugar cube before adding it to water
increases the sugar's surface area. The more surface area a solute has, the faster it will dissolve because more particles of the sugar can interact with the water. This means the finer the sugar particles, the faster it will dissolve.
Which of these factors will cause a solid solute dissolve faster?
Temperature — Generally,
an increase in the temperature of the solution
increases the solubility of a solid solute. For example, a greater amount of sugar will dissolve in warm water than in cold water. A few solid solutes, however, are less soluble in warmer solutions.
