The effective molar mass of ashes has units of grams of ashes per mole of base provided. The mass of the ashes in the experiment is given, 20.4 g. The rest of the work involves determining the amount of base provided, in moles. We will first determine the moles of base used in the titration. What volume of acid was used in the experiment

Answer:

a). P = 688 atm

b). P = 1083.04 atm

c).Δ G = 16.188 J/mol    

Explanation:

a). Fugacity 'f' can be calculated from the following equations :

[tex]$\ln \frac{f}{P}=\int^P_0\left(\frac{Z-1}{P}\right) dP$[/tex]

where, P = pressure ,  Z = compressibility

Now, the virial equation is :

[tex]$PV=R(1+6.4\times 10^{-4} P)$[/tex]  ........(1)

Also, PV=ZRT for real gases .......(2)

∴ [tex]$ZRT=RT(1+6.4\times 10^{-4} P)$[/tex]

  [tex]$Z=1+6.4\times 10^{-4} P$[/tex]

So from the fugacity equation ,

[tex]$\ln \frac{f}{P}=\int^P_0\left(\frac{1+6.4\times 10^{-4}P-1}{P}\right) dP$[/tex]

[tex]$\ln \frac{f}{P}=\int^P_0\left(\frac{6.4\times 10^{-4}P}{P}\right) dP$[/tex]

[tex]$\ln \frac{f}{P} = 6.4 \times 10^{-4} P$[/tex]

[tex]$f=Pe^{6.4 \times 10^{-4} P}$[/tex]

Putting the value of P = 500 atm in the above equation, we get,

f = 688 atm

b). Given f = 2P

    [tex]$2P=PE^{6.4 \times 10^{-4}P}$[/tex]

   [tex]$2=E^{6.4 \times 10^{-4}P}$[/tex]

  [tex]$\ln 2 = 6.4 \times 10^{-4}P$[/tex]

  ∴  P = 1083.04 atm

c). dG = Vdp -S dt  at constant temperature, dT = 0

Therefore, dG = V dp

[tex]$\int^{G_2}_{G_1}dG =\int^{P_2}_{P_1}V dp $[/tex]

            [tex]$=\int^{P_2}_{P_1}\frac{RT}{P}\left(1+6.4 \times 10^{-4}P\right) dP$[/tex]

           [tex]$=\int^{P_2}_{P_1}RT\frac{dp}{P}+\int^{P_2}_{P_1}RT6.4 \times 10^{-4} dP$[/tex]

[tex]$\Delta G=R[\ln\frac{P_2}{P_1}+6.4 \times 10^{-4}(P_2-P_1)]$[/tex]

[tex]$\Delta G=8.314\times 298[\ln\frac{500}{1}+6.4 \times 10^{-4}(500-1)]$[/tex]

Δ G = 16.188 J/mol  

Heat of vaporization is the amount of heat required to melt a solid. Therefore option C is correct.

The amount of energy required to turn a portion of a liquid material into a gas is known as the enthalpy of vaporization, commonly referred to as the heat of vaporization or heat of evaporation. The pressure at which the transition occurs affects the enthalpy of vaporization.

The amount of energy required for one gram of a liquid to evaporate  without a change in pressure is known as the heat of vaporization. As the solid or liquid transitions into a less dense state of matter, these energies are required to disperse the intermolecular forces keeping it together.

vaporization is the process by which a material is transformed from its liquid or solid state into its gaseous  state. Boiling is the term for the vaporization process when circumstances permit the creation of vapour bubbles within a liquid.

Thus, option C is correct.

To learn more about heat of vaporization follow the link below;

https://brainly.com/question/9967928

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The amount of heat needed to cause a liquid to evaporate is known as the heat of vaporization. So, option B is right.

When a liquid is heated, the molecules at the surface of the liquid gain enough energy to escape from the liquid and become a gas. This process is called evaporation.

The heat of vaporization is the amount of heat that is required to vaporize one gram of a liquid at a constant temperature.

The heat of vaporization is different for different liquids. For example, it takes 2260 joules of heat to vaporize one gram of water at 100 degrees Celsius.

The heat of vaporization is a measure of the strength of the intermolecular forces in a liquid. The stronger the intermolecular forces, the more heat is required to vaporize the liquid.

Therefore, the answer is B, that the heat of vaporization is the amount of heat required to evaporate a liquid.

Learn more about vaporization here;

https://brainly.com/question/30078883

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Answer:

Assist in the movement of food and waste through the digestive system

Answer:

See explanation

Explanation:

CO2 is often released by the combustion of fossil fuels. Fossil fuels are quite common sources of energy in our world today.

A lot power plants, vehicles, etc rely on energy produced as a result of the combustion of fossil fuels yielding carbon dioxide.

Hence, irrespective of the fact that CO2 leads to global warming but Nigeria is still ranked one of the greatest emitters of CO2.

The menace of rising CO2 leves can only be checked by stakeholders in the energy sector coming together to exploit renewable energy as a regular source of energy.

Sulfate - SO4^-2

Sulfite - SO3^-2

Hydrogen Sulfate - HSO4-

Answer:

True!

Explanation:

Living things are classified by the characteristics they have in common. All living organisms are classified within the organization based on extremely fundamental, shared characteristics.

Answer:

1- Se 2-Na 3- I guess Si as well 4-Ar 5-O

Explanation:

Answer:

Thermal energy comes from heat sources that provide energy from it's temp.

Explanation:

Produced when a rise in temperature causes atoms and molecules to move faster and collide with each other. The energy that comes from the temperature of the heated substance is called thermal energy. 6 min, 47 sec Heat Energy.

(If this doesn't help let me know in the comments, I'll try to explain better :> )

Answer:

C) 0.800 mol

Explanation:

In order to convert from moles of Al₂O₃ into moles of Al, we'll need to use the stoichiometric coefficients, using a conversion factor that has Al₂O₃ moles in the denominator and Al moles in the numerator:

So the correct answer is option C).

Answer:

The correct answer is : C.

Explanation:

The characteristics of a property of molecular substances is low melting point.

Answer:

Please find the graph file in the attachment file.

Explanation:

differences

Answer:

123.2 Liters.

Explanation:

At STP (T = 273K & P = 1atm), one mol of any gas will occupy 22.4 liters.

With the above information in mind, we can calculate how many liters would 5.500 mol of gas occupy:

5.500 mol * 22.4 L / mol = 123.2 L

So 5.500 moles of C₃H₃ would have a volume of 123.2 liters at STP.

Answer:

Because the infrared lamp gives off a type of light that the desk lamp does not, and the mirror can only take in the energy from the infrared light.

Explanation:

Answer:

I think it's letter B

Explanation:

Hope it helps correct if I'm wrong

Answer:

a)  ≈ 4.99 / cm^3

b)   0.515 um

Explanation:

Given data:

energy = 150 Kev

dose of 10^15 cm^-2

A) find the depth of the peak of the implant profile and its value at that depth

expression for implant profile = written below in the attached file

value of the peak depth ≈ 4.99 / cm^3

B ) determine the depth at which the concentration of phosphorus is equal concentration of boron

= 0.515 um

attached below is the detailed solution to the problem

Answer:

the second one

Explanation:

metal doesn't act like a magnet because the domains don't have a preferred direction of alignment. Magnets are all aligned in a specific direction.

Answer:

It is not water absorbant and also the colour black, due to it's dark nature makes the person wearing the cloth feel hot. Unlike cotton, silk is not at all water absorbant as it does not absord any sweat produced in the wearers body

Answer:

HCl(aq) + KOH(aq --> KCl(aq) + H₂O(l)

Explanation:

Answer:....

Explanation:...

Answer:

the mass of 2.9 moles of calcium is 116 g

Explanation:

The computation of the mass of 2.9 moles of calcium is shown below

As we know that

Mole = mass ÷  molar mass

where,

Moles be 2.9

And, we know that the molar mass of calcium be 40g/mol

Now put the values to the above formula

2.9 = Mass ÷ 40

So, the mass would be

= 40 × 2.9

=   116 g

Hence, the mass of 2.9 moles of calcium is 116 g

Answer:

1.30 mol P

Explanation:

take what is given to you (40.4g). now divide it by the molar mass of the asked element (phosphorus = 30.97g/mol)

40.4g P / 30.97g/mol P = 1.30 mol P

hope this helps :)