Define solubility. the amount of a substance that will dissolve in a given amount of solvent a solid mixed with another solid a liquid that does not dissolve in another liquid the amount of a substance that will dissolve in a given amount of solute a solid that does not dissolve in a gas

Answer:

Explanation:

Isomers are compounds with the same molecular formula but chemically distinctive structures. Compounds that vary in connectivity, or how the component atoms are related to one another, are known as constitutional isomers. They have distinct functional groups and bonding patterns according to the sequence in which the atoms are linked together.

From the information given:

The compound given is C₃H₆Br₂ and the constitutional isomer of the compound can be seen in the image attached below.

The formal charges are calculated as follows:

Formal charge = valence electron - 1/2(bonding electron) - lone electron

For Br:

Formal charge = 7 - 1/2(2) - 6

Formal charge = 7 - 1 - 6 = 0

For C:

Formal charge = 4 - 1/2(8) - 0

Formal charge = 4 - 4 = 0

For H:

Formal charge = 1 - 1/2(2)

Formal charge = 1 - 1 = 0

Answer:.25 M

Explanation: .4mol/1.6L = .25 M

Answer:

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Explanation:

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Answer:

Potassium dicyanoargentate(I) | C2AgKN2 - PubChem.

Synonyms: Potassium dicyanoargentate(I)pota...

Molecular Formula: C2AgKN2

Explanation:

Answer:

Newly discovered star is a younger star

Explanation:

The composition of the newly discovered star is Hydrogen, Lithium, Neon, Sodium, Mercury

It consists of both hydrogen and helium of which the old stars are not made up of as they are heavier than the new stars.

Considering the above fact, it can be stated that the new star is a young star.

Answer:

A newly discovered star is a younger star because the composition of the newly discovered star is Hydrogen, Lithium, Neon, Sodium, and Mercury. And also further consists of both hydrogen and helium of which the old stars are not made up of, as they are heavier than the newer stars. And by considering that fact; it can be stated that the new star is a young star.

Explanation:

I did the lab

The question is incomplete, the complete question is;

Which statement about the relationship between laws, hypotheses, and theories is true?

A.

Laws that remain true over an extended period of time are considered theories.

B.

A theory that holds true for a long time is considered a law.

C.

If a law is not contradicted after a lot of testing, it may be considered a hypothesis.

D.

If a hypothesis is not contradicted after a lot of testing, it may be considered a law.

Answer:

If a hypothesis is not contradicted after a lot of testing, it may be considered a law.

Explanation:

A hypothesis is an intelligent guess which is put forward to explain a particular scientific observation. Hypothesis are temporary explanations that must be subjected to rigorous scientific investigation.

If a hypothesis holds true for some time it is regarded as a theory. The theory is also subjected to further rigorous scientific experiments to see if it can be regarded as a law.

If the statement of the hypothesis is not contradicted after a lot of testing, it may be considered a law.

This Should Be Your Answer:

Step 1: Formation of ions

Step 2: Formation of ionic bonds

Step 3: Formation of cubes

Step 4: Formation of crystals

I Hope This Helps? :)

Answer:

Black Cats?

Explanation:

_________

#LetsStudy

The image of the structure is attached in the image below.

Answer: The correct option is a.) 4-methyl-3-phenyl-3-pentenoic acid

Explanation:

Carboxylic acids are a type of functional group in organic chemistry that have the symbol '-COOH'. A suffix used for this functional group is '-oic acid'.

To name a compound, first look for the longest possible carbon chain.

As in the image attached below, the longest carbon chain has 5 carbon atoms. Thus, the prefix used will be 'pent-'

Also, a methyl substituent is present at the 4th position, a phenyl substituent is located at the 3rd position.

A double bond is also present at the 3rd position and a suffix '-ene' is used.

Hence, the IUPAC name for the given compound is 4-methyl-3-phenyl-3-pentenoic acid.

Answer:

The cyanidin indicator turns blue within a pH range of 5 - 7. The pH of the solution could be 5, 6 or 7.

An indicator is used to determine the endpoint of a titration.

Explanation:

Cyanidin indicator changes colour with each change in pH. In acidic solutions (pH < 7) cyanidin indicator will turn red, through to purple and blue, while in basic solutions (pH > 7), cyanidin indicator will change colour from aquamarine through to green and yellow. The cyanidin indicator turns blue within a pH range of 5 - 7.

Titration is a technique used in analytical chemistry to determine the unknown concentration of a solution. A solution of known concentration is added from a burette to the solution of unknown concentration until the reaction between the two solutions is complete. This known as the endpoint of the experiment. The endpoint of a titration is determined using an indicator which is added to reaction mixture. A colour charge is produced by the indicator at the endpoint of the reaction.

Note: An indicator is a dye of weak organic acids or bases which changes colour with changes in the pH of a solution. Some common indicators are methyl orange, methyl red, phenolphthalein, etc. These indicators are used to monitor the changes in the pH of solutions during a reaction.

Answer:

5,7,6

Explanation:

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To solve this, we must know each and every concept related to surface tension and viscosity as well. Therefore, mx will be less than my at liquid air interface.

The tendency to reduce surface area produced by the tension of a liquid's surface film as a result of the surface layer's particles being drawn to the liquid's bulk is called  surface tension.

Surface tension is caused by a net inward force that makes the surface operate like an elastic membrane on which objects may float freely. This net inward force is caused by a stronger cohesion between liquid molecules than adhesion between liquid and air molecules.

There is less surface tension in liquid x. As a result, it is unable to contain as many wax particles on its surface as liquid Y can. The liquids will combine uniformly. It is possible to combine two liquids with viscosities that are either lower or greater than the initial liquids.

Therefore, mx will be less than my at liquid air interface.

To know more about surface tension, here:

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Answer:

It looses an electron

Explanation:

We must remember that sodium chloride is an ionic compound. In an ionic compound, a metal is often bonded to a non metal.

The metal looses electron(s) and the nonmetal accepts electron(s). The metal forms its cation while the non metal forms its anion.

Thus an ionic compound is basically a pair of ions held by electrostatic interaction.

Thus, when chlorine becomes part of sodium chloride, it gains one electron from sodium and becomes Cl^-

Answer:

[tex]3.99x10^6 \mu L[/tex]

Explanation:

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In this case, for this units conversion problem, it turns out necessary to write the equivalence statement for liters and quarts as follows:

1 qt = 0.946353 L

Thus, the conversion set up turns out to be:

[tex]4.22qt*\frac{0.946353 L}{1qt} \\\\=3.99L[/tex]

Next, we convert to microliters as follows:

[tex]3.99L*\frac{1\mu L}{10^{-6}L}\\\\=3.99x10^6 \mu L[/tex]

Regards!

Answer:

Ethyl ethanoate

Explanation:

To name the compound given above, we must:

1. Determine the functional group of the compound.

2. Determine the longest continuous carbon chain before the functional group and the longest continuous carbon chain after the functional.

3. Name the compound by naming the compound after the functional group followed by the compound before the functional group ending its name with

–oate.

Now, we shall determine the name of the compound as follow:

1. The compound is an ester with the functional group R'COOR.

Note: R' and R are alkyl groups which may be the same or different.

2. The longest continuous carbon chain before the functional group is 2 i.e ethane and the longest continuous carbon chain after the functional group is 2 i.e ethyl

3. The name of the compound after the functional group => ethyl.

The name of the compound before the functional group => ethane but the pressence of the two oxygen atoms makes it ethanoate.

Therefore, the name of the compound is Ethyl ethanoate

Answer:

1) NaCN is a basic salt

2) [tex]KNO_3[/tex] is a neutral salt

3) [tex]NH_4Cl[/tex] is an acidic salt

4) [tex]NaHCO_3[/tex] is a basic salt

5) [tex]Na_3PO_4[/tex] is a neutral salt

Explanation:

Salts are formed by the combination of an acid and a base. There are 3 types of salt:

For the given salts:

1) NaCN is a basic salt as it is formed by the combination of sodium hydroxide (strong base) and HCN (weak acid). The chemical equation for the hydrolysis of salt follows:

[tex]NaCN+H_2O\rightarrow NaOH+HCN[/tex]

As NaOH is released in the solution. Thus, it is a basic salt.

2) [tex]KNO_3[/tex] is a neutral salt as it is formed by the combination of potassium hydroxide (strong base) and nitric acid (strong acid).

3) [tex]NH_4Cl[/tex] is an acidic salt as it is formed by the combination of ammonium hydroxide (weak base) and HCl (strong acid). The chemical equation for the hydrolysis of salt follows:

[tex]NH_4Cl+H_2O\rightarrow NH_4OH+HCl[/tex]

As HCl is released in the solution. Thus, it is an acidic salt.

4) [tex]NaHCO_3[/tex] is a basic salt as it is formed by the combination of sodium hydroxide (strong base) and partial dissociation of carbonic acid (weak acid). The chemical equation for the hydrolysis of salt follows:

[tex]NaHCO_3+H_2O\rightarrow NaOH+H_2CO_3[/tex]

As NaOH is released in the solution. Thus, it is a basic salt.

5) [tex]Na_3PO_4[/tex] is a neutral salt as it is formed by the combination of sodium hydroxide (strong base) and phosphoric acid (strong acid).

Answer: The volume of the new solution​ is 83.33 mL.

Explanation:

Given: [tex]V_{1}[/tex] = 200 mL,    [tex]M_{1}[/tex] = 0.5 M

[tex]V_{2}[/tex] = ?,             [tex]M_{2}[/tex] = 1.2 M

Formula used to calculate the volume of new solution is as follows.

[tex]M_{1}V_{1} = M_{2}V_{2}[/tex]

Substitute the values into above formula as follows.

[tex]M_{1}V_{1} = M_{2}V_{2}\\0.5 M \times 200 mL = 1.2 M \times V_{2}\\V_{2} = 83.33 mL[/tex]

Thus, we can conclude that volume of the new solution​ is 83.33 mL.

Answer:

The diluted solution have an absorbance less than the original solution

Explanation:

As you can see in the graph, the absorbance of a substance is directly proportional to the concentration of the substance (Lambert-Beer law). That means a solution more concentrated than another will have an absorbannce greater than the more diluted solution.

In the problem, you are diluting the original sample by the addition of 10mL of distilled water, that means,

Answer:

n8ce question and answer is time taken

Answer:

30.3 g

Explanation:

At STP, 1 mol of any gas will occupy 22.4 L.

With the information above in mind, we calculate how many moles are there in 32.0 L:

Then we calculate how many moles would there be in 16.6 L:

The difference in moles is:

Finally we convert 0.689 moles of CO₂ into grams, using its molar mass:

Answer:

Mass of HCl leftover = 6.4 g

Explanation:

We'll begin by writing the balanced equation for the reaction. This is illustrated below:

NaOH + HCl —> NaCl + H₂O

Next, we shall determine the masses of NaOH and HCl that reacted from the balanced equation. This can be obtained as follow:

Mass of NaOH = 23 + 16 + 1

= 40 g/mol

Mass of NaOH from the balanced equation = 1 × 40 = 40 g

Molar mass of HCl = 1 + 35.5 = 36.5 g/mol

Mass of HCl from the balanced equation = 1 × 36.5 = 36.5 g

SUMMARY:

From the balanced equation above,

40 g of NaOH reacted with 36.5 g of HCl.

Next, we shall determine the mass of HCl required to react with 7 g of NaOH. This can be obtained as follow:

From the balanced equation above,

40 g of NaOH reacted with 36.5 g of HCl.

Therefore, 7 g of NaOH will react with = (7 × 36.5)/40 = 6.4 g of HCl.

Thus, 6.4 g of HCl is required for the reaction.

Finally, we shall determine the leftover mass of HCl. This can be obtained as follow:

Mass of HCl given = 12.8 g

Mass of HCl that reacted = 6.4 g

Mass of HCl leftover =?

Mass of HCl leftover = (Mass of HCl given) – (Mass of HCl that reacted)

Mass of HCl leftover = 12.8 – 6.4

Mass of HCl leftover = 6.4 g

Answer:

Ammonium chloride

Explanation:

because is a salt which is highly soluble in water than potassium

Answer:

3.46 g of BaCl2

Explanation:

The equation of the reaction is;

BaCl2(aq) + Na2SO4(aq) --------> 2NaCl(aq) + BaSO4(s)

Number of moles of barium sulphate produced = 3.88 g/233.38 g/mol = 0.0166 moles

From the reaction equation;

1 mole of BaCl2 yields 1 mole of barium sulphate

Hence 0.0166 moles of BaCl2 yields 0.0166 moles of barium sulphate

Hence;

Mass of BaCl2 required = 0.0166 moles × 208.23 g/mol = 3.46 g of BaCl2

Answer:

an element, feature, or factor that is liable to vary or change.

Answer:

Sulphanilic acid is insoluble in both water as well as in acid because it can not form hydrogen bonding with the water molecule. But it is soluble in aqueous mineral acid like HF,HCl,HNO3 because they are able to form a hydrogen bond with mineral acids. Was this answer helpful?

Answer:

Social justice aims to give individuals and groups fair treatment and an impartial share of social, environmental and economic benefits. The concept promotes the fair distribution of advantages and disadvantages within a society, regardless of background and status.

Environmental justice deals explicitly with the distribution of environmental benefits and the burdens people experience, at home, at work, or where they learn, play and spend leisure time. Environmental benefits include attractive and extensive greenspace, clean air and water, and investment in pollution abatement and landscape improvements. Environmental burdens include risks and hazards from industrial, transport-generated and municipal pollution.

Answer: The final concentration of aluminum cation is 0.335 M.

Explanation:

Given: [tex]V_{1}[/tex] = 47.8 mL (1 mL = 0.001 L) = 0.0478 L

[tex]M_{1}[/tex] = 0.321 M,       [tex]V_{2}[/tex] = 21.8 mL = 0.0218 L,      [tex]M_{2}[/tex] = 0.366 M

As concentration of a substance is the moles of solute divided by volume of solution.

Hence, concentration of aluminum cation is calculated as follows.

[tex][Al^{3+}] = \frac{M_{1}V_{1} + M_{2}V_{2}}{V_{1} + V_{2}}[/tex]

Substitute the values into above formula as follows.

[tex][Al^{3+}] = \frac{M_{1}V_{1} + M_{2}V_{2}}{V_{1} + V_{2}}\\= \frac{0.321 M \times 0.0478 L + 0.366 M \times 0.0218 L}{0.0478 L + 0.0218 L}\\= \frac{0.0153438 + 0.0079788}{0.0696}\\= 0.335 M[/tex]

Thus, we can conclude that the final concentration of aluminum cation is 0.335 M.

Answer:

Ba²⁺(aq) + 2 Cl⁻(aq) + 2 NH₄⁺(aq) + SO₄²⁻(aq) ⇒ 2 NH₄⁺(aq) + 2 Cl⁻(aq) + BaSO₄(s)

Explanation:

Let's consider the molecular equation that occurs when aqueous BaCl₂ and aqueous (NH₄)₂SO₄ are mixed in solution to form aqueous NH₄Cl and solid BaSO₄. This is a double displacement reaction.

BaCl₂(aq) + (NH₄)₂SO₄(aq) ⇒ 2 NH₄Cl(aq) + BaSO₄(s)

The complete ionic equation includes all the ions and insoluble species.

Ba²⁺(aq) + 2 Cl⁻(aq) + 2 NH₄⁺(aq) + SO₄²⁻(aq) ⇒ 2 NH₄⁺(aq) + 2 Cl⁻(aq) + BaSO₄(s)

Answer:

2.7×10⁻³ mole

Explanation:

Applying

Q = it.............. Equation 1

Where Q = amount of charge, i = current, t = time

From the question,

Given: i = 0.860 A, t = 5 minutes = (5×60) seconds = 300 seconds

Subsitute these values into equation 1

Q = (0.860×300)

Q = 258 C

If one mole of electron has a charge of 96500 C

Then, x mole of electron will have a charge of 258 C

1 mole ⇒ 96500 C

X moles ⇒ 258 C

Solve for X

X = (258×1)/96500

X = 2.7×10⁻³ mole