Examining the equations or equilibrium constants related to a base, salt, or an acid is an indirect way to determine strength of an electrolyte. The strength of an electrolyte can be examined directly by placing a solution into a circuit so that the voltage or amount of current can be measured. Although conductivity refers to the flow of charged species, we usually examine conductivity with respect to resistance. As the name implies, a solution that does not conduct electricity very well also has a very high resistance. If solutions containing various acids, bases, and salts were prepared and connected to a circuit that powers a light bulb, the strength of the electrolyte could be estimated by examining the intensity of the light bulb. Complete the following sentences regarding the experimental determination of the electrolyte strength for various molecules dissolved in solution.
a. strong electrolyte
b. weak electrolyte
c. non-electrolyte
1. A 20 mL solution containing 2 mmol of Ca3(PO4)2(s) was integrated into to a circuit that powers a light but, When the power supply was turned on, the light bulb produced a glow. Ca3(PO4)2(s) is__.
2. A 20 mL, solution containing 2 mmol of C12H22O11(aq) was integrated into a circuit that powers a light bulb. When the power supply was turned on the light bulb remained off. C12H22O11(aq) is___.
3. A 20 mL, solution containing 2 mmol of HF(g) was integrated into to a circuit that power a light bulb. When the power supply was turned on the light bulb faintly flickered. HF(g) is an____.
4. A 20 mL solution containing 2 mmol of LiOH(g) was integrated into to a circuit that power a light bulb. When the power supply was turned on the light bulb produced a bright glow LiOH(s) is a____.

Answer:

d. hydrospher, asthenosphere, atmosphere

Answer:

its actually b atmosphere, geosphere, cryosphere atmosphere

Explanation: atmosphere is most likely the heat in the air or the water evaporating , cryosphere is the ice that forms the glaciers. and thats how i know im not sure about geosphere but i know its none of the others ones hope this helps :D

Answer:

10 the power of 23 hydrogen atom

Answer: There are [tex]6.2\times 10^{23}[/tex] atoms of helium are found in a helium balloon if it has 3.9 g of helium  inside.

Explanation:

According to avogadro's law, 1 mole of every substance weighs equal to the molecular mass and contains avogadro's number [tex]6.023\times 10^{23}[/tex] of particles.

To calculate the moles, we use the equation:

[tex]\text{Number of moles}=\frac{\text{Given mass}}{\text {Molar Mass}}=\frac{3.9g}{4.00g/mol}=0.975moles[/tex]

1 mole of helium contains = [tex]6.023\times 10^{23}[/tex]  atoms

Thus 0.975 moles of helium contain = [tex]\frac{6.023\times 10^{23}}{1}\times 0.975=6.2\times 10^{23}[/tex]  atoms

Answer:

CCl4

Explanation:

Because it is non polar and non polar substances are insoluble in water.

The molecule which is least soluble in water is C(Cl)₄

Water is polar molecule and only polar molecules are soluble in water.

Hence tetra chloro carbon is insoluble in water.

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Answer:

Mole fraction  = 0.1313

Explanation:

given data

Addition rate of pure phosphoric acid = 30L/min

Phosphoric acid added in 25 min = 750 L

solution

mass is express as here

mass = density × volume and number of moles = mass ÷ molar mass

So, In terms of moles

phosphoric acid added = (750 × 1.834) ÷ 98

phosphoric acid added = 14.036 kmol

and

moles of phosphoric acid in tank = 0.05 × 150 + 14.036

moles of phosphoric acid in tank = 21.536 kmol

and

Moles of water in tank = 0.95 × 150

Moles of water in tank = 142.5 kmol

So that Mole fraction of phosphoric acid in tank

Mole fraction = 21.536 ÷ (21.536+142.5)

Mole fraction  = 0.1313

Answer:

An apple, potato, and onion all taste the same if you eat them with your nose plugged

Explanation:

Answer:

hunting or culling by humans

Explanation:

The hunting will decrease the starfish

Answer:

The p- nitrophenol is more acidic than phenol because the deactivating nature of nitro group and after loosing the protons it makes more resonance stabilization as nitro group is having strong deactivating nature so it attracts electrons towards it.

Answer: A or C because of the civil right movement changed a lot of stuff as if it never happened blacks would of still be segregated, the U.S wouldn't be the same and they also mentioned that the U.S would not be respected by many other countries which would hurt them from developing even more in the future.

Answer:

An electrolyte is a substance that produces an electrically conducting solution when dissolved in a polar solvent, such as water. ... A substance that dissociates into ions in solution acquires the capacity to conduct electricity. Sodium, potassium, chloride, calcium, magnesium, and phosphate are examples of electrolytes.

Explanation:

Please give thanks to all my answers and please mark as brilliant and please follow me

Answer:

stratosphere

Explanation:

Answer:

These forces make objects change their motion or movement , the act of going from one place to another.

Explanation:

Answer:

A carbon–carbon bond is a covalent bond between two carbon atoms. ... Carbon atoms can also form double bonds in compounds called alkenes or triple bonds in compounds called alkynes. A double bond is formed with an sp2-hybridized orbital and a p-orbital that is not involved in the hybridization.

Explanation:

Answer:

Sustainable development is a way for people to use resources without the resources running out. ... The term used by the Brundtland Commission defined it as development with sustainability that "meets the needs of the present and also compromising the ability of future generations to meet their own needs."

Answer:

d

Explanation:

Answer:

Explanation:

To fill in the gaps with the appropriate words, we need to rewrite the whole text in the question while adding the right answers to it.

[tex]According \ to \ Markovnikov's \ rule \ of \ the \ electrophilic \ addition \ to \ an \ alkene, \\ \\ the \ electrophile, \ usually, \ a \ proton, \ is \ more \ likely \ to \ add \ to \ the \ \mathbf{less \ substituted \ carbon} \\ \\ \ in \ a \ double \ bond.[/tex]

[tex]This \ arrangement \ place \ the \ intermediate \ carbocation \ on \ the \ \mathbf{more \ substituted \ carbon.}[/tex][tex]Which \ stabilizer \ it \ with \ the\ presence \ of \ \mathbf{more \ substituents} \ the \ major \ product \ of[/tex]

[tex]the \ reaction \ following \ markovnikov \ rules \ the \ \mathbf{nucleophile} \ will \ then \ end \ up[/tex]

[tex]with \ the \ m ore \ substituted \ carbon \ in \ the \ double \ bond.[/tex]

Answer:

55.025g of N2O

Explanation:

2 NH3 + 2 O2 → N2O + 3 H2O

moles of O2 = 80.0/32 = 2.5 moles O2

moles of N2O = 2.5 moles O2 * 1 mole N2O

= 1.25 moles N2O

moles = mass/Molar mass

mass = moles * Molar mass = 1.25 x 44.02 = 55.025 g

Answer: Ionization is complete when sodium hydroxide compound is dissolved in water as it is strong electrolyte.

Explanation:

Strong bases are good electrolytes as they completely dissociate to give ions which help in the conduction of electrical current.

Weak bases are those substances which dissociate partially to give hydroxide ions [tex](OH^-)[/tex] when dissolved in water.

Example: [tex]NH_4OH\rightleftharpoons NH_4^++OH^-[/tex]

Strong bases are those substances which dissociate completely to give hydroxide ions [tex](OH^-)[/tex] ions when dissolved in water.

Example: [tex]NaOH\rightarrow Na^++OH^-[/tex]

When sodium hydroxide (NaOH) compounds are dissolved in water (H₂O), ionization takes place completely.

Ionization is a process, where compound on dissociation coverts into ions.

Dissociation of NaOH takes place as follow:

NaOH → Na⁺ + OH⁻

Here NaOH, is a strong electrolyte or strong base which completely dissociate into ions and never combine to again form NaOH. Whereas weak electrolytes are those which partially dissociate into ions and gives reaction like as:

AB ↔ A⁺ + B⁻

Complete ionization takes place when sodium hydroxide compounds are dissolved in water.

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Answer:

a. True

Explanation:

The formula for determining the gold bromide formula, aqueous solution is added. When the solution is introduced with aluminum metal, the gold bromide reacts and displaces the gold metal. This is an electrolysis technique which is used for metals.

Answer:

Bohr's model of the hydrogen atom is based on three postulates:

1) An electron moves around the nucleus in a circular orbit,

2) An electron's angular momentum in the orbit is quantised,

3) The change in an electron's energy as it makes a quantum jump from one orbit to another is always accompanied by the emission or absorption of a photon. Bohr's model is semi-classical because it combines the classical concept of electron orbit (postulate 1) with the new concept of quantisation ( postulates 2 and ).

Answer:

It's the 4d orbital

Explanation:

n is the principal quantum number, n=4, means the 4th orbital, l=2, means 'f'(l=0,1,2,3 which means spdf respectively)

Answer:

air,water,rocks,and the ibex

Explanation:

these are the non living things I'm pretty sure

Synthesis. The synthesis of aspirin is classified as an esterification reaction. Salicylic acid is treated with acetic anhydride, an acid derivative, causing a chemical reaction that turns salicylic acid's hydroxyl group into an ester group (R-OH → R-OCOCH3).

hope it's help

There is lesser dissociation of hydrogen cyanide as compared to HCl, as  equilibrium constant for the dissociation of hydrogen cyanide has been smaller than HCl. Hence, option C is correct.

Hydrogen cyanide has been a weak acid that has been dissociated into the constituent ions. The dissociation of the compound in water has been corresponds to the equilibrium constant.

The equilibrium constant has been defined as the ratio of the concentration of solute and solvent ions at equilibrium.

The sample with lesser equilibrium constant tends to dissociate at lesser concentration as well.

The equilibrium constant for the dissociation of hydrogen cyanide has been smaller than HCl. Thus, there will be lesser dissociation of hydrogen cyanide as compared to HCl. Hence, option C is correct.

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Answer:

First, let's review the ideal gas law, PV = nRT. In this equation, 'P' is the pressure in atmospheres, 'V' is the volumes in liters, 'N' is the number of particles in moles, 'T' is the temperature in Kelvin and 'R' is the ideal gas constant (0.0821 liter atmosphere per moles Kelvin).

Explanation:

I majored in Chemistry

Answer:

Some materials let electricity pass through them easily. These materials are known as electrical conductors. Many metals, such as copper, iron and steel, are good electrical conductors.

I hope it's helpful!

Answer:

1=true

2=false

3=false

4=true

5=true

Answer:

The answer is A.

Explanation:

Answer:

Explanation:

I believe it is a