30. What is the final volume of a 400.0 mb gas sample that is subjected to a temperature
change from 22.0 °C to 30.0 °C and a pressure change from standard pressure to 0.47 atm?
Gas Law Used:

CFCs are 1000-15000 times powerful as compared to greenhouse gas such as CO2.

Chlorofluorocarbons are present in less amount or less abundant than carbon dioxide gas in the atmosphere but they are 10,000 times more powerful as a greenhouse gas.

These CFCS gases can remain in the atmosphere for more than 45 to 100 years. CFCS gases greatly damaged the ozone layer by reacting with it that leads to increase in the diseases such as skin cancer so we can conclude that CFCs are more powerful as compared to carbondioxide gas.

Learn more: https://brainly.com/question/24994753

Answer: Booting up the computer: When you turn on the computer, it requires a burst of energy to start up the various components and initialize the operating system.

Explanation:

Answer:

In this reaction, Ca(OH)2 is a reducing agent. It reacts with hydrogen chloride to form calcium chloride and water. Therefore, the following reaction shows that matter is neither created nor destroyed in a chemical reaction: Ca(OH)2 + 2HCI -> CaCl2 + 2H20. The formation of calcium chloride and water from the hydrolysis of calcium hydroxide is not an example of matter being created or destroyed in a chemical reaction because it does not involve the breaking down of any bonds between atoms.

Explanation:

Answer:

C) one magnesium and one oxygen

At equilibrium, the number of moles of \(Cl_2\) (g) will be 0.2025 mol.

1: Write the balanced chemical equation:

\(C_O\)(g) + \(Cl_2\)(g) ⟶ \(C_OCl_2\)(g)

2: Set up an ICE table to track the changes in moles of the substances involved in the reaction.

Initial:

\(C_O\)(g) = 0.3500 mol

\(Cl_2\)(g) = 0.05500 mol

\(C_OCl_2\)(g) = 0 mol

Change:

\(C_O\)(g) = -x

\(Cl_2\)(g) = -x

\(C_OCl_2\)(g) = +x

Equilibrium:

\(C_O\)(g) = 0.3500 - x mol

\(Cl_2\)(g) = 0.05500 - x mol

\(C_OCl_2\)(g) = x mol

3: Write the expression for the equilibrium constant (Kc) using the concentrations of the species involved:

Kc = [\(C_OCl_2\)(g)] / [\(C_O\)(g)] * [\(Cl_2\)(g)]

4: Substitute the given equilibrium constant (Kc) value into the expression:

1.2 x \(10^3\) = x / (0.3500 - x) * (0.05500 - x)

5: Solve the equation for x. Rearrange the equation to obtain a quadratic equation:

1.2 x \(10^3\) * (0.3500 - x) * (0.05500 - x) = x

6: Simplify and solve the quadratic equation. This can be done by multiplying out the terms, rearranging the equation to standard quadratic form, and then using the quadratic formula.

7: After solving the quadratic equation, you will find two possible values for x. However, since the number of moles cannot be negative, we discard the negative solution.

8: The positive value of x represents the number of moles of \(Cl_2\)(g) at equilibrium. Substitute the value of x into the expression for \(Cl_2\)(g):

\(Cl_2\)(g) = 0.05500 - x

9: Calculate the value of \(Cl_2\)(g) at equilibrium:

\(Cl_2\)(g) = 0.05500 - x

\(Cl_2\)(g) = 0.05500 - (positive value of x)

10: Calculate the final value of \(Cl_2\) (g) at equilibrium to get the answer.

Therefore, at equilibrium, the number of moles of \(Cl_2\) (g) will be 0.2025 mol.

For more such questions on equilibrium, click on:

https://brainly.com/question/517289

#SPJ8

Answer:

Normal boiling point is a standard boiling point at sea level highet that is 100 c°

but the temperature at which water boils may vary with different factors like increasing pressure in pressure cooker.

And it decreases with increase in height.

Explanation:

The boiling point of a liquid is the temperature at which its vapor pressure is equal to the pressure of the gas above it. The normal boiling point of a liquid is the temperature at which its vapor pressure is equal to one atmosphere (760 torr).

Normal boiling point is a standard unit  and the highest is 100 c°  at sea level but the temperature at which water boils and the temperature may vary with respect to different factors.  

The boiling point is defined as the temperature at which the liquid vapor pressure is equal to the external pressure surrounding the liquid.

The boiling point of a liquid depend on atmospheric pressure.

When external pressure is reduced, the boiling point will be lowered. For example at sea level the boiling point of water is 100 C  but when we go to 6,600 feet the boiling point become 93.4 C

The standard boiling point is defines  as the temperature of boiling under 1 bar of pressure.

Learn more about boiling point, here:

https://brainly.com/question/2153588

#SPJ2

The volume of air you might inhale (and exhale) in 8.00 hours is approximately 1903.2 liters.

To calculate the volume of air you might inhale (and exhale) in 8.00 hours, we need to determine the total number of breaths you take in that time and then multiply it by the volume of each breath.

First, let's calculate the number of breaths in 8.00 hours:

Number of breaths per minute = 13

Number of breaths per hour = 13 breaths/minute * 60 minutes/hour = 780 breaths/hour

Number of breaths in 8.00 hours = 780 breaths/hour * 8.00 hours = 6240 breaths

Now, let's calculate the volume of air in liters:

Volume of each breath = 0.305 liters

Volume of air inhaled and exhaled in 8.00 hours = Volume of each breath * Number of breaths in 8.00 hours

Volume of air inhaled and exhaled in 8.00 hours = 0.305 liters/breath * 6240 breaths = 1903.2 liters

for more such questions on volume

https://brainly.com/question/28853889

#SPJ8

Answer:

(From top to bottom)

Cerebral cortex - The cerebral cortex is the largest site of neural integration in the central nervous system. It plays a key role in attention, perception, awareness, thought, memory, language, and consciousness.

Thalamus - The thalamus is a mostly gray matter structure of the diencephalon that has many essential roles in human physiology. The thalamus is composed of different nuclei that each serve a unique role, ranging from relaying sensory and motor signals, as well as regulation of consciousness and alertness.

Tegmentum -  Responsible for controlling basic body and limb movements.

Pituitary gland - The pituitary gland is called the 'master gland' as the hormones it produces control so many different processes in the body. It senses the body's needs and sends signals to different organs and glands throughout the body to regulate their function and maintain an appropriate environment.

Reticular formation - Sleep and consciousness

Explanation:

If you want you can take out the most important information to study easier

Hope this helps

Answer:

Hailey the answer is D.

Explanation:

if liquid to solid is exothermic then then the other way around would be endorhermic

Answer:

The chemical elements are arranged from left to right and top to bottom in order of increasing atomic number, or the number of protons in an atom's nucleus.

Explanation:

Answer:

\(1s^{2} 2s^{2} 2p^{6} 3s^{2} 3p^62} 4s^{2} 3d^{10} 4p^{5}\) with 7 valence electrons.

Explanation:

Bromine has 7 unpaired (valence) electrons in its outer shell, and a total of 35 elecrons. Its 4s orbital is completely filled with 2 electrons.

The closest answer from the options would be option D.

I hope this helps.

They appear as the trait over a recessive allele. Statement C) is true about the dominant alleles.

Dominant alleles are genetic variants that, when present in an individual's genotype, are expressed phenotypically, meaning they determine the visible or observable traits. Dominant alleles are represented by capital letters, while recessive alleles are represented by lowercase letters in genetics.

In terms of inheritance, if an individual has at least one copy of the dominant allele, it will be expressed in the phenotype, regardless of the presence of a recessive allele. This is because dominant alleles exert their influence over recessive alleles, thus "dominating" their expression.

To illustrate this, let's consider a specific example using a trait controlled by a single gene with two possible alleles: dominant (A) and recessive (a). If an individual is homozygous dominant (AA), meaning they possess two copies of the dominant allele, the dominant trait will be expressed.

However, if an individual is homozygous recessive (aa), with two copies of the recessive allele, the recessive trait will be expressed since there are no dominant alleles to override it.

Therefore, dominant alleles appear as the trait over recessive alleles, regardless of the presence or absence of a recessive allele. The presence of even a single copy of the dominant allele is sufficient for its expression in the phenotype. Option C

For more such questions on  recessive allele visit:

https://brainly.com/question/16048928

#SPJ8

we would need 2625.13 grams (or 2.62513 kilograms) of NaCl.

To calculate the mass of NaCl required to produce a 26.4 mol/L solution with a 1.7 L volume, we need to use the formula that relates the mass of solute, moles of solute, and molarity:Molarity (M) = moles of solute / liters of solution Rearranging this formula, we get:moles of solute = Molarity (M) x liters of solutionWe can use this formula to find the moles of NaCl needed:moles of NaCl = 26.4 mol/L x 1.7 L = 44.88 molNow, we can use the molar mass of NaCl to convert from moles to grams. The molar mass of NaCl is 58.44 g/mol:mass of NaCl = moles of NaCl x molar mass of NaClmass of NaCl = 44.88 mol x 58.44 g/mol = 2625.13 gTo produce a 26.4 mol/L solution with a 1.7 L volume.

for more question on NaCl

https://brainly.com/question/23269908

#SPJ8

The lowest shell that can hold p-orbitals is the n = 2 shell. The second row of the periodic table is represented by the number n = 2.

The 1s sublevel, which has a single orbital, is always the lowest energy sublevel. When the hydrogen atom is in its ground state, its lone electron will be in the 1s orbital. The lowest conceivable energy that a quantum theory system can have is called zero-point energy (ZPE).

There can be a maximum of seven f orbitals. The orbitals at the s sublevel of a major energy level, also referred to as an electron shell, are known as f orbitals. F sublevels have a high energy, which enables them to hold a maximum of 14 electrons in up to seven orbitals.

To know more about quantum theory, visit:

https://brainly.com/question/4751848

#SPJ1

The correct reading of the volume in the pictured burette is 26. 40 mL.

The correct option is B.

The correct way to take volume readings from a burette is as follows:

Calculate the volume delivered by subtracting the initial burette reading from the final burette reading.

Dispose of the solution remaining in the burette and rinse it thoroughly with water.

Learn more about burette readings at: https://brainly.com/question/28353349

#SPJ1

Answer:

\(m_{iron}=32.1g\)

Explanation:

Hello!

In this case, since the interaction between hot iron and cold water allows the heat transfer from iron to water and therefore we can write up the following energetic equation:

\(Q_{iron}+Q_{water}=0\)

Whereas the heat terms can be written in terms of mass, specific heat and temperature change:

\(m_{iron}C_{iron}(T_f-T_{iron}) + m_{water}C_{water}(T_f-T_{water}) = 0\)

So we solve for the mass of iron as follows:

\(m_{iron} = \frac{m_{water}C_{water}(T_f-T_{water})}{C_{iron}(T_f-T_{iron}) }\)

Now, we plug in the given data to obtain:

\(m_{iron} = \frac{-100g*0.449\frac{J}{g\°C} (25.7\°C-22.0\°C)}{0.449\frac{J}{g\°C} (25.7\°C-93.3\°C) }\)

\(m_{iron}=32.1g\)

Best regards!

Answer:

Answer is - 2. ...........

At constant temperature, if the volume of the sample of gas decreases, the pressure increases to 4.0atm.

Hence, option1)4 atm is the correct answer.

Boyle's law simply states that "the volume of any given quantity of gas is inversely proportional to its pressure as long as temperature remains constant.

Boyle's law is expressed as;

P₁V₁ = P₂V₂

Where P₁ is Initial Pressure, V₁ is Initial volume, P₂ is Final Pressure and V₂ is Final volume.

Given the data in the question question;

We substitute our given values into the expression above to determine the new pressure.

P₁V₁ = P₂V₂

P₂ = P₁V₁ / V₂

P₂ = ( 1.0atm × 0.2L ) / 0.05L

P₂ = 0.2Latm / 0.05L

P₂ = 4atm

At constant temperature, if the volume of the sample of gas decreases, the pressure increases to 4.0atm.

Hence, option1)4 atm is the correct answer.

Learn more about Boyle's law here: brainly.com/question/1437490

#SPJ2

When the moving car brakes to the stop the kinetic energy of car will be converted to the heat energy.

The mechanical brake will be applies to the friction force and it convert the kinetic energy of the car into the thermal energy that which then dissipates on atmosphere. The process of the braking will follow the principle of the conservation of the energy.

The conservation of the energy is the principle, that is expressed in its the most general form, and it is the first law of the thermodynamics. The first law of thermodynamics explains that "the energy of the universe remains the same."

To learn more about thermodynamics here

https://brainly.com/question/31303013

#SPJ1

This question is incomplete, the complete question is :

A car in motion has kinetic energy. A moving car is suddenly stopped. Why does the car stop? Where did the energy go?

The reaction listed below will Gibbs free energy always be negative is an endothermic reaction that increases in entropy. The correct option is C.

Gibbs free energy in thermodynamics is used to calculate the total amount of energy that can be used in doing work in a thermodynamically closed system within a constant temperature and pressure.

\(\Delta G=\Delta H-T \Delta S\)

Endothermic reactions are those reactions in which the energy is saved and doesn't go out into the environment and the thermodynamic system is closed, and the entropy will be increased therefore the delta G will be negative.

Thus, the correct option is C. An endothermic reaction that increases in entropy regarding when Gibbs free energy always is negative.

Learn more about Gibbs free energy, here:

https://brainly.com/question/20358734

#SPJ5

Answer: An exothermic reaction that increases in entropy

Explanation:

Water molecules attract the ions from the solute and then collapse the crystal the attraction occurs between the water molecules and the ions in the crystal such that they are pulled apart and the crystal dissolve.

Water dissolves substances by breaking apart their molecular bonds and surrounding the individual molecules. This process is called solvation, and it occurs when the attractive forces between the solvent (in this case, water) and the solute (the substance being dissolved) are stronger than the forces holding the solute molecules together.

The polar nature of water molecules allows them to form hydrogen bonds with other polar or ionic substances, causing the solute molecules to become surrounded by water molecules and become dispersed throughout the solvent. This creates a hom---ogeneous mixture known as a solution.

Learn more about water molecules:https://brainly.com/question/26529979

#SPJ1

Answer:

could you explain your question more

Explanation:

Answer:

Actual yield reduces the more.

Explanation:

An actual yield of the course of a chemical reaction is the mass of a product actually obtained from the reaction.

In practice you see it and It is usually less than the theoretical yield.

Various reasons may come up to explain this away but here is one:

• incomplete reactions, simply put here some of the reactants do not react to form the product.

The same applies in the question about the actual yield will reduce significantly in molar mass now that insufficient amount of reagent are used.

Answer:

The chemical formula of barium phosphate is Ba3(PO4)2.

Explanation:

brainlest ples :(

Answer:

To determine the identity of metal X, we need to compare the standard reduction potentials of the possible metals with the standard reduction potential of the Mg half-reaction.

From Table 18.1, we can find the standard reduction potentials for each of the metals listed:

Pb: -0.13 V

Zn: -0.76 V

Ni: -0.25 V

Fe: -0.44 V

Mn: -1.18 V

The reduction half-reaction for the Mg electrode is:

Mg2+ + 2e- → Mg E° = -2.37 V

The overall reaction for the galvanic cell is:

Mg(s) + X2+(aq) → Mg2+(aq) + X(s)

The standard cell potential is given by:

E°cell = E°(cathode) - E°(anode)

where the cathode is the reduction half-reaction and the anode is the oxidation half-reaction.

Substituting the given values, we get:

1.61 V = E°(X2+/X) - (-2.37 V)

Simplifying, we get:

E°(X2+/X) = 1.61 V + 2.37 V = 3.98 V

Comparing E°(X2+/X) with the standard reduction potentials in Table 18.1, we see that only zinc (Zn) has a reduction potential that is more negative than 3.98 V. Therefore, the metal X is zinc (Zn).

Therefore, the answer is (b) Zn.

The pressure of the gas in the vessel will be 10.92 atm

The Ideal gas equation gives the relationship between gas pressure, volume, number of moles and temperature.

The Ideal gas equation is given below:

where

From data provided

P = 13.15 atm; V = 10.0 L; T = 21°C = 294 K

R = 0.082?057 L.atm/K.mol

making n subject of formula to find initial number of moles of oxygen gas

n = PV/RT

n = 13.15 x 10/0.082?057 x 294

n = 5.45 moles oxygen at start

The equation for the combustion of hexane is given below:

2 C6H14+ 19 O2 --> 12 CO2 + 14 H2O

Number of moles of hexane in 9.45 g

Number of moles = mass/molar mass

molar mass of hexane = 86 g

Number of moles of Hexane = 9.45/86

Number of moles of hexane = 0.11 moles

2 moles of hexane reacts with  19 moles of oxygen

0.11 moles of hexane will react with 0.11 × 19/2 moles of oxygen

 1.045 mole O2 will be used up

Moles of oxygen left = 5.45 - 1.045

Moles of oxygen left = 4.405 moles

2 moles of hexane produces 12 molesof CO2

0.11 moles of hexane produces 0.11 × 12/2

0.11 moles of hexane produces 0.66 mole CO2

Total moles of gas = 4.406 + 0.66 = 5.065 mole of gas in a 10 L container at -10°C

From ideal gas equation;

P = nRT/V

P = 5.065 × 0.082× 263/10

P = 10.92 atm

Therefore, the pressure of the gas in the vessel will be 10.92 atm

Learn more about ideal gas equation and gas pressure at: https://brainly.com/question/12873752