Using standard absolute entropies at 298K, calculate the entropy change for the system when 1.68 moles of CO(g) react at standard conditions.Consider the reactionCO(g) + H2O(l)CO2(g) + H2(g)

Answer:

For gene therapy, stem cells can be trained in a lab to become cells that can help fight disease. Liposomes. These fatty particles have the ability to carry the new, therapeutic genes to the target cells and pass the genes into your cells' DNA.

Mark me as brainlest please!

70.9-gram sample of \(Cl_{2}\) gas will occupy Opton C. 22.4 liters at STP.

To determine the volume occupied by the sample of \(Cl_{2}\) (g) at STP, we can use the ideal gas law equation, PV = nRT

where P = pressure

V = volume

n = number of moles

R = ideal gas constant

T = temperature.

At STP (Standard Temperature and Pressure), the pressure is 1 atmosphere (atm) and the temperature is 273.15 Kelvin (K).

First, calculate the number of moles of \(Cl_{2}\) (g) using its molar mass. The molar mass  \(Cl_{2}\) is 70.9 grams/mol.

Number of moles (n) = mass (m) / molar mass (M)

n = 70.9 g / 70.9 g/mol

n = 1 mol

Now, we can calculate the volume using the ideal gas law:

V = (nRT) / P

V = (1 mol * 0.0821 L·atm/mol·K * 273.15 K) / 1 atm

V ≈ 22.4 L

Therefore, the correct answer is C. 22.4 L.

Know more about STP here:

https://brainly.com/question/13656229

#SPJ8

Answer:

Coefficient = 1.58

Exponent = - 5

Explanation:

pH = 2.95

Molar concentration = 0.0796M

Ka = [H+]^2 / [HA]

Ka = [H+]^2 / 0.0796

Therefore ;

[H+] = 10^-2.95

[H+] = 0.0011220 = 1.122 × 10^-3

Ka = [H+] / molar concentration

Ka = [1.122 × 10^-3]^2 / 0.0796

Ka = (1.258884 × 10^-6) / 0.0796

Ka = 15.815 × 10^-6

Ka = 1.58 × 10^-5

Coefficient = 1.58

Exponent = - 5

ANSWER

The volume of the container that the gas is in is 57.9L

EXPLANATION

Given that

The moles of the gas is 17.3 moles

The pressure of the gas is 7.5 atm

The temperature of the gas is 306K

Follow the steps below to find the volume of the container

Step 1; Assume the gas behaves like an ideal gas

Therefore, the volume of the container that the gas is in is 57.9L

You can use Balances and Scales..

Answer:

thank you for this oibnki

Answer:

Sure I'll go ahead and like your answers and follow you if that's what you wanted! :)

Explanation:

Answer:

Explanation:

s=h/t

=35.3/64.2(c)

=35.3/337.2(k)

=0.104

Given what we know, we can confirm that John Dalton was the first person to show strong empirical evidence for the existence of atoms.

Therefore, given his proposal of the atomic theory and the experiments he carried out to provide evidence to support his claims, we can confirm that John Dalton was the first person to show strong empirical evidence for the existence of atoms.

To learn more about atoms visit:

https://brainly.com/question/13981855?referrer=searchResults

it is not possible to provide an exact numerical value for the equilibrium constant (K) of the reaction 3I2(s) + 2Fe(s) -> 2FeI3(aq) + 6I-(aq) at 25°C.

I apologize for the confusion earlier. Let's assume the correct balanced equation for the reaction you mentioned is:

  3I2(s) + 2Fe(s) -> 2FeI3(aq) + 6I-(aq)

To calculate the equilibrium constant (K) at 25°C, we need to know the concentrations of the species at equilibrium. Without the specific concentrations, we won't be able to provide an exact numerical value for K. However, I can guide you through the process of calculating K using the given information.

Let's assume the initial concentration of I2 is [I2]₀ and the initial concentration of Fe is [Fe]₀. At equilibrium, let's assume the concentration of FeI3 is [FeI3] and the concentration of I- is [I-].

The balanced equation indicates that the stoichiometric ratio between I2 and FeI3 is 3:2. Therefore, at equilibrium, the concentration of I2 will be [I2]₀ - (3 * x), where x is the change in concentration of I2.

Similarly, the stoichiometric ratio between Fe and FeI3 is 2:2 (or 1:1), meaning the concentration of Fe at equilibrium will be [Fe]₀ - (1 * x).

Since 6 moles of I- are produced for every 1 mole of FeI3 consumed, the concentration of I- at equilibrium will be 6x.

The equilibrium constant expression (K) for the given reaction is:

K = ([FeI3] * [I-]^6) / ([I2]^3 * [Fe])

To obtain the numerical value of K, we would need the specific concentrations at equilibrium.

Learn more about equilibrium constant

brainly.com/question/28559466

#SPJ11

Answer:B

Explanation:

Answer:

The velocity of the bb when it reaches a height of 203 m can be determined using the laws of projectile motion. Since the bb is moving vertically upwards, its velocity at that height will be zero.

brainlest?

Answer: v = 83.96 m/s

Assuming the acceleration due to gravity is approximately 9.8 m/s^2, we can use the principles of projectile motion and energy conservation.

Using the equation for the vertical displacement of an object in free fall:

Δy = (v₀² - v²) / (2g)

Δy = vertical displacement (203m)

v₀ = initial velocity (105 m/s)

v = final velocity (not known yet)

g = accerlation due to gravity (9.8 m/s^2)

Lets rearrange the equation to solve for the final velocity:

v = v = √(v₀² - 2gΔy)

Substituting the given values:

v = √(105² - 2 * 9.8 * 203)

v ≈ √(11025 - 3979.6)

v ≈ √(7054.4)

v ≈ 83.96 m/s

Therefore, when the BB pellet is at the height of 203m, its velocity will be approximately 83.96 m/s.

1. The molarity of the solution is 0.672 M

2. The mass of copper (ii) sulfate, CuSO₄ needed is 47.88 g

3. The volume of the 6.00 M sulfuric acid needed is 216.67 mL

First, we shall determine the mole in 341 grams of KNO₃. Details below:

Mole = mass / molar mass

Mole of KNO₃ = 341 / 101

Mole of KNO₃ = 3.376 moles

Finally, we shall obtain the molarity of the solution. Details below:

Molarity of solution = mole / volume

Molarity of solution = 3.376 / 5

Molarity of solution = 0.672 M

First, we shall obtain the mole in 250 mL of 1.2 M CuSO₄. Details below:

Mole = molarity × volume

Mole of CuSO₄ = 1.2 × 0.25

Mole of CuSO₄ = 0.3 mole

Finally, we shall determine the mass of  CuSO₄ needed. Details below:

Mass = Mole × molar mass

Mass of CuSO₄ = 0.3 × 159.609

Mass of CuSO₄ = 47.88 grams

Thus, to prepare the solution, measure 47.88 g of CuSO₄ and place in a 250 mL volumetric flask and fill with water to the mark.

The volume of the 6.00 M H₂SO₄ solution needed can be obtained as folllow:

M₁V₁ = M₂V₂

6 × V₁ = 2.6 × 500

Divide bioth sides by 6

V₁ = (2.6 × 500) / 6

V₁ = 216.67 mL

Thus, the volume of 6.00 M H₂SO₄ solution needed is 216.67 mL

Learn more about molarity:

https://brainly.com/question/16073358

#SPJ1

The residents of Kansas were overwhelmingly opposed to the Lecompton Constitution. This was large because the document protected slavery and allowed the state government to decide whether slavery should be allowed in the new state.

The people of the state saw this as an affront to their values and democratic rights and worked to defeat the constitution in a state referendum.

After much debate and campaigning, the Lecompton Constitution was defeated by over 10,000 votes. This was a major victory for antislavery advocates, who had worked hard to make sure the constitution was rejected in Kansas.

The residents of Kansas were overwhelmingly opposed to the Lecompton Constitution. This document was drafted by pro-slavery advocates and would have made slavery a permanent institution in the state.

The citizens of Kansas were furious, and it sparked a great deal of debate and conflict. Many residents were so opposed to the document that they decided to form an independent government and reject the Lecompton Constitution in a referendum.

The referendum passed in an overwhelming majority, and the Lecompton Constitution was rejected. This event was a major milestone in the struggle for free-state rights in the Midwest and demonstrated the power of the people to resist oppressive legislation.

To know more about the Lecompton constitution, click below:

https://brainly.com/question/8007282

#SPJ4

The approximate mass percent of hydrogen in butadiene, C4H6 is 13.

The molecular formula of butadiene is C4H6.

Calculate the mass of one mole of butadiene, C4H6.

Mass of 4 carbon atoms = 4 × 12 amu = 48 amuMass of 6 hydrogen atoms = 6 × 1 amu = 6 amu

Total mass of 4 moles of butadiene = 48 amu + 6 amu = 54 amuMass percent of hydrogen in butadiene = (mass of 6 hydrogen atoms/total mass of butadiene) × 100 % = (6/54) × 100 % = 11.11% ≈ 13 (rounded to the nearest whole number)

Summary: The mass percent of hydrogen in butadiene, C4H6 is approximately 13.

Learn more about butadiene click here:

https://brainly.com/question/17846983

#SPJ11

Explanation:

Electronic Configuration of First 30 Elements with Atomic Numbers

Atomic Number Name of the Element Electronic Configuration

18 Argon (Ar) [Ne] 3s2 3p6

19 Potassium (K) [Ar] 4s1

20 Calcium (Ca) [Ar] 4s2

21 Scandium (Sc) [Ar] 3d1 4s2

26 more rows

Explanation:

NUMBER ELEMENT ELECTRON CONFIGURATION

1 Hydrogen 1s1

2 Helium 1s2

3 Lithium [He]2s1

4 Beryllium [He]2s2

5 Boron [He]2s22p1

6 Carbon [He]2s22p2

7 Nitrogen [He]2s22p3

8 Oxygen [He]2s22p4

9 Fluorine [He]2s22p5

10 Neon [He]2s22p6

11 Sodium [Ne]3s1

12 Magnesium [Ne]3s2

13 Aluminum [Ne]3s23p1

14 Silicon [Ne]3s23p2

15 Phosphorus [Ne]3s23p3

16 Sulfur [Ne]3s23p4

17 Chlorine [Ne]3s23p5

18 Argon [Ne]3s23p6

19 Potassium [Ar]4s1

20 Calcium [Ar]4s2

Answer + Explanations

Calculate heat absorption using the formula:

Q = mc∆T

Q means the heat absorbed, m is the mass of the substance absorbing heat, c is the specific heat capacity and ∆T is the change in temperature.

The heat absorbed is calculated by using the specific heat of water and the equation ΔH=cp×m×ΔT. 4. Water is vaporized to steam at 100oC. The heat absorbed is calculated by multiplying the moles of water by the molar heat of vaporization.

You can do this easily: just multiply the heat capacity of the substance you're heating by the mass of the substance and the change in temperature to find the heat absorbed.

To calculate the amount of heat released in a chemical reaction, use the equation Q = mc ΔT, where Q is the heat energy transferred (in joules), m is the mass of the liquid being heated (in kilograms), c is the specific heat capacity of the liquid (joule per kilogram degrees Celsius), and ΔT is the change in ...

Q = mc∆T. Q = heat energy (Joules, J) m = mass of a substance (kg) c = specific heat (units J/kg∙K) ∆ is a symbol meaning "the change in"

Precisely, water has to absorb 4,184 Joules of heat (1 calorie) for the temperature of one kilogram of water to increase 1°C. For comparison sake, it only takes 385 Joules of heat to raise 1 kilogram of copper 1°C.

A reaction that absorbs heat is endothermic. Its enthalpy will be positive, and it will cool down its surroundings. This reaction is exothermic (negative enthalpy, release of heat).

Quantitative experiments show that 4.18 Joules of heat energy are required to raise the temperature of 1g of water by 1°C. Thus, a liter (1000g) of water that increased from 24 to 25°C has absorbed 4.18 J/g°C x 1000g x 1°C or 4180 Joules of energy.

Answer:

Evaporated via combustion.

Explanation:

The loss on ignition (LOI) and Ash content are inorganic analytical techniques used to determine the percentage by mass of hydrocarbon in compounds. This process allows volatile matter and possibly impurities found in a material to evaporate, leaving behind the true chemical constituents of the material.

The 10kg lost could be moisture content of the tree, or other volatile matter which has escaped on combustion of the tree.

Answer:  Ubaidian people produce wheat, barley, and peas. Ubaidian people developed new agricultural technique in planting and harvesting their crops.

(I hope this helps ^^)

Exothermic reactions, release exceeding chemical energy from the reactants. Before its release, the energy is turned into another form, heat or light. C) The total chemical potential energy of the reactants is greater than the total chemical potential energy of the products.

An exothermic reaction is the chemical reaction that releases energy as heat or light when the reactants turn into products.

Reactant molecules have more energy than the product molecules, and hence, the remaining energy must leave the system. So part of the chemical energy from the reactants is released as another type of energy  (heat or light).

Usually, oxidation reactions are exothermic.

The correct option is C) The total chemical potential energy of the reactants is greater than the total chemical potential energy of the products.

You can learn more about exothermic reactions at

https://brainly.com/question/10373907

#SPJ1

Answer:

10.58km

The formula needed to calculate the amount of wire used is expressed as:

W is the weight of wire used to wind a magnet

wg is the weight of wire per km

Given the following parameters:

Substitute the given parameters into the formula to have:

Hence the length of wire used is 10.58km

Answer:

acid

Explanation:

Answer:

mass number = 3

Explanation:

Hydrogen is the only chemical species that has an isotope with 2 neutrons. Since all hydrogen atoms only have 1 proton, the mass number of hydrogen isotope with 2 nuetrons would be 3. The mass number is equal to number of protons + neutrons (+ electrons but they have virtually no mass so they can be excluded).

N-Octanol and water are chosen because the connection between a substance's hydrophilicity and lipophilicity is measured by \(K_{OW}\) (n-Octanol/Water partition coefficient). When a chemical is more dissolves in fat-like solvents like n-octanol, the value is more significant than one,  when it's more dissolved in water, the value is lower.

What is the partition coefficient?

So, N-Octanol is chosen because it has a carbon/oxygen ratio that is comparable to that of lipids and because it shows both hydrophobic and hydrophilic properties. N-octanol, therefore, resembles the makeup and characteristics of cells and other living things.

Learn more about octanol here:

https://brainly.com/question/7768749

#SPJ4

Answer:The Industrial Revolution transformed economies that had been based on agriculture and handicrafts into economies based on large-scale industry, mechanized manufacturing, and the factory system.

Explanation:

In solution 4 of part b, both the hydronium concentration and hydroxide concentration are 1 M due to the neutralization reaction between HCl and NaOH. The initial concentrations of H₃O⁺ and OH⁻ were 0.1 M, but they reacted to form water and resulted in equal final concentrations of 1 M for both ions.

To calculate the hydronium and hydroxide concentrations for solution 4 in part b, we need to first understand the equation for the reaction that occurred.

The equation given is: HCl + NaOH -> NaCl + H₂O

This tells us that one mole of HCl reacts with one mole of NaOH to produce one mole of NaCl and one mole of water.

Based on this equation, we know that the initial concentration of hydroxide ions (OH-) in solution 4 is equal to the initial concentration of sodium hydroxide (NaOH), which was given as 0.1 M.

Next, we need to determine the concentration of hydronium ions (H₃O⁺). Since HCl is a strong acid, it completely dissociates in water to produce H₃O⁺ and Cl⁻ ions. Therefore, we can assume that the initial concentration of H₃O⁺ is equal to the initial concentration of HCl, which was also given as 0.1 M.

Now, let's consider what happens when the HCl and NaOH are mixed together. They react to form NaCl and water, which means that the concentrations of H₃O⁺ and OH⁻ will change.

From the equation, we can see that the reaction consumes one mole of HCl and one mole of NaOH. This means that the final concentration of HCl and NaOH will both be zero.

To determine the final concentration of OH-, we need to use the fact that the reaction produces one mole of water for every mole of NaOH that reacts. Therefore, the final concentration of OH⁻ will be equal to the initial concentration of NaOH (0.1 M) divided by the volume of the solution.

If we assume that the volume of the solution is 100 mL (as stated in the question), then the final concentration of OH- will be:

[OH⁻] = 0.1 M / 0.1 L = 1 M

Finally, we can use the fact that the concentration of H₃O⁺ and OH⁻ must be equal in a neutral solution to determine the final concentration of H₃O⁺.

Since the final concentration of OH⁻ is 1 M, we know that the final concentration of H₃O⁺ must also be 1 M.

To know more about the hydronium & hydroxide concentrations refer here :

https://brainly.com/question/29286376#

#SPJ11

The correct answer to the first part of your question is option (c): Energy is released by water vapor as it condenses.

When water vapor condenses into liquid water, it undergoes a phase change from a gaseous state to a liquid state. During this phase change, energy is released in the form of latent heat. This release of energy occurs because the water molecules in the vapor phase are more energetic and have higher kinetic energy compared to the water molecules in the liquid phase.

To know more about latent heat

brainly.com/question/23976436

#SPJ11

Answer:

A water turbine is used to convert the energy contained in water, potential energy or kinetic energy, into mechanical or electrical energy. There are two types of water turbines, the reaction water turbine, and the impulse water turbine.

Explanation:

Answer:

Water turbines are used to take energy whether it may be kinetic or potential from the water and convert that energy into mechanical, or electrical energy.

Explanation: