A chemist has dissolved a certain substance in water. The chemist knows that more of the substance could be dissolved into the water before it stops dissolving. Therefore, the current solution is

Answers

Answer 1

Answer:

Answer is: the current solution is unsaturated.

Unsaturated solution means that more of a substance can be dissolve.

For example:

Solubility of potassium chlorate (KClO₃) at 100 grams of water at 80°C is 37.5 g, that means that all 37.5 g is completely dissolves, this is the saturated solution.

If we add 20 grams of potassium chlorate in 100 grams of water, there is less solute than the saturated solution, so this is unsaturated solution.

Answer 2

Answer:

The current solution is $\boxed{{\text{unsaturated}}}$ .

Further explanation:

The maximum amount of solute particles that can be dissolved in fixed amount of solvent to form a saturated solution is called solubility of a salt. The units of solubility are often expressed as ${\text{g}}/100{\text{ mL}}$ . Depending upon solubility the solution can be of three types:

1. Saturated solution

2. Unsaturated solution

3. Supersaturated solution

The saturated solution may be defined as a solution that has maximum amount of solute dissolved and that cannot accommodate any further solute. Such a solution has some undissolved substance at the bottom.

The unsaturated solution may be defined as the solution in which the solute concentration is smaller than the maximum amount that can be added and hence more amount can be easily added.

The supersaturated solution refers to the solution in which the solute concentration exceeds the maximum amount that can be added. Such a solution is prepared when a solution is heated to a certain temperature to dissolve this solute and then slowly cooled down to lower temperatures.

Since more solute can still be dissolved in the solution hence the current solution is unsaturated.

Learn more:

1. Determination of supersaturated solution: brainly.com/question/8834703

2. Type of mixture: brainly.com/question/11506142

Answer details:

Grade: High School

Subject: Chemistry

Chapter: Solutions

Keywords: solute, solvent,saturated solution,unsaturated solution,supersaturated solution, unsaturated and concentration.

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Water mixing with carbon dioxide from the air and changing the properties of limestone is an example ofa. chemical weathering.
b. erosion.
c. physical weathering.
d. rock weathering

Answers

It is an example of chemical weathering.
Because the carbon dioxide mixed with the air changes the chemical composition of limestone.

Hope it helps.

The correct answer is A. chemical weathering!

Which air pollutant affects people who have heart disease?Carbon monoxide
Pollution
Particulate matter
Ozone

Answers

The correct answer is the third option. Particulate matter is the air pollutant known to affect people with a heart disease. According to research, this pollutant is associated with an increased risk of cardiovascular diseases.

Answer:

the answer is Particulate matter

Explanation:

How many milliliters of 0.183 m hcl would be required to titrate 5.93 g koh?

Answers

Molar mass:
KOH = 56.0 g/mol

Number of moles of KOH :

5.93 / 36.5 => 0.1624 moles

KOH + HCl = KCl + H₂O

1 mole KOH --------------> 1 mole HCl
0.1624 moles KOH ----> ?

moles HCl = 0.1624 x 1 / 1

= 0.1624 moles of HCl

V ( HCl ) = moles / molarity

V(HCl) = 0.1624 / 0.183

V (HCl) = 0.887 L x 1000 = 887 mL

hope this helps!

Which of these solutions has the highest freezing point?1.0 M molecular sucrose (C12H22O11)
1.0 M ionic sodium chloride (NaCl)
1.0 M ionic calcium bromide (CaBr2)
1.0 M ionic aluminum bromide (AlBr3)
1.0 M ionic potassium chloride (KCl)

Answers

Answer: 1.0 M molecular sucrose (C₁₂H₂₂O₁₁).

Explanation:

1) The depression of the freezing point of a solvent when you add a solute is a colligative property.

2) Colligative properties are those physical properties of solutions that depends on the number of solute particles dissolved into the solution.

3) The relation between the number of solute particles and the depresson of the freezing point is proportional: the greater the number of solute particles the greater the freezing point depression.

4) You need to find the solution with the highest freezing point, this is the solution in which the freezing point decreased the least.

5) Then, that is the solution with least number of solute particles.

6) Since all the given solutions have the same molarity (1.0 M), you only have to deal with the possible ionization of the different solutes.

7) NaCl, CaBr₂, AlBr₃, and KCl are ionic compounds, so each unit of them will ionize into two, three, four, and two ions, respectively, while sucrose, being a covalent compound does not dissociate.

Then, 1.0 M solution of sucrose will have less solute particles than the others, and will exhitibit the lowest freezing point depression, meaning that it will have the highest freezing point of the given solutions.

The right answer for the question that is being asked and shown above is that: "1.0 M ionic aluminum bromide (AlBr3)." the solution that has the highest freezing point is that 1.0 M ionic aluminum bromide (AlBr3)

Calculate the mass of 1.25 mol ammonium sulfide, (NH4)2S. *

Answers

Answer:

85g

Explanation:

To convert the moles of a substance to grams we need to know the molar mass of the substance. We, as first, must obtain the molar mass of (NH₄)₂S as follows:

There are 2 atoms of N, 8 of H and 1 of S:

N = 2*14g/mol = 28g/mol

H = 8*1g/mol = 8g/mol

S = 1*32g/mol = 32g/mol

Molar mass: 68g/mol

That means 1 mole of (NH₄)₂S has a mass of 68g.

1.25moles have a mass of:

1.25moles * (68g/mol) =