The reaction of 15 moles carbon with 30 moles O2 will
result in a theoretical yield of __ moles CO2.

Answer:

sounds wave

Explanation:

From alarm, microwave, laser, TV, water waves and a musical instrument, everything release sounds.

(Not the same)

If it convinced you please add this in the brainlist

Q = Ksp = 1 × 10^(-12).

Substituting the values into the Nernst equation, we have:

0.799 V = E° - (RT/2F) * ln(1 × 10^(-12))

Now, solving for E°:

E° = 0.799 V + (RT/2F) * ln(1 × 10^(-12))

The value of R is the ideal gas constant, T is the temperature in Kelvin, and F is the Faraday constant.

To find the standard reduction potential at 25°C for the half-reaction Ag2CrO4(s) + 2e¯ → 2Ag(s) + CrO4²-(aq), we can use the Nernst equation, which relates the standard reduction potential (E°) to the equilibrium constant (K) and the reaction quotient (Q).

The Nernst equation is given as follows:

E = E° - (RT/nF) * ln(Q)

Given information:

Ksp = 1 × 10^(-12)

E = +0.799 V (standard reduction potential of Ag+ to Ag)

Since the reaction involves the dissolution of Ag2CrO4(s), the reaction quotient Q can be expressed as [Ag+]²/[CrO4²-].

Since the stoichiometry of the reaction is 2:1 for Ag2CrO4 to Ag+, we can say that [Ag+]² = Ksp.

Therefore, Q = Ksp = 1 × 10^(-12).

Substituting the values into the Nernst equation, we have:

0.799 V = E° - (RT/2F) * ln(1 × 10^(-12))

Now, solving for E°:

E° = 0.799 V + (RT/2F) * ln(1 × 10^(-12))

The value of R is the ideal gas constant, T is the temperature in Kelvin, and F is the Faraday constant.

Please note that without specific values for temperature (T) and the ideal gas constant (R), the exact standard reduction potential at 25°C cannot be determined.

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Answer:

Francium

Explanation:

The atomic radius increases from top to bottom in a group, and decreases from left to right across a period.

so francium (Fr) is the largest atom or has highest radii.

Hope this helps & please mark as brainiest!

Answer:

Francium has the largest atomic radius.

The general trend for atomic radii is increasing from top to bottom and decreasing from left to right so the one with the largest atomic radius will be in the bottom left of the periodic table.

Answer:

Petrified wood was part of a plant that has been changed into rocks.

Explanation:

Yeet

Answer:

it can be changed into rocks

Explanation:

im 100% sure

Answer:

25.88 g of F₂.

Explanation:

From the question given above, the following data were obtained:

Number of molecules of F₂ = 4.10×10²³ molecules

Mass of F₂ =?

From Avogadro's hypothesis,

1 mole of F₂ = 6.02×10²³ molecules

Next, we shall determine the mass of 1 mole of F₂. This can be obtained as follow:

1 mole of F₂ = 2 × 19 = 38 g

Thus,

38 g of F₂ = 6.02×10²³ molecules

Finally, we shall determine the mass of 4.10×10²³ molecules of F₂. This can be obtained as follow:

6.02×10²³ molecules = 38 g of F₂

Therefore,

4.10×10²³ molecules = 4.10×10²³ × 38 / 6.02×10²³

4.10×10²³ molecules = 25.88 g

Thus, 25.88 g of F₂ contains 4.10×10²³ molecules.

Answer:

9.15

Explanation:

To solve this problem we'll use Henderson-Hasselbach's equation:

For this problem:

Now we calculate [NH₄Cl], first by converting 50.0 g of NH₄Cl into moles using its molar mass:

Meaning that [NH₄Cl] = 0.935 mol / 1.00 L = 0.935 M

Finally we calculate the pH:

The pH can be defined as the hydrogen ion concentration in the solution. The pH of ammonium chloride solution in ammonia is 9.16.

The molarity is the moles of a compound in the liter of solution. The molarity of 50 grams ammonium chloride in a liter of solution is given as:

\(\rm Molaity=\dfrac{mass}{molar\;mass\;\times\;volume(L)} \\\\NH_4Cl\;Molarity=\dfrac{50\;g}{53.491\;g/mol\;\times\;1\;L} \\\\NH_4Cl\;Molarity=0.935\;M\)

The ammonia in the solution contributes to the pH from the ammonium chloride salt. The pH can be given as:

\(\rm pH=pKa+log\dfrac{acid}{salt}\)

The pKa of ammonia is 9.25. The concentration of ammonia is given as 0.75 M.

The pH of the solution can be given as:

\(\rm pH=9.25+log\dfrac{0.75\;M}{0.935}\\ pH=9.25+(-0.09)\\pH=9.16\)

The pH of the solution is 9.16.

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Because HCl is a stronger acid than acetic acid, the pH of 0.01M acetic acid has greater value than the pH of 0.01M HCl. 2.88 is the  pH of a 0.01 M acetic acid.

Any hydrogen that comprises a material capable of giving a proton (a hydrogen ion) to another chemical is defined as acid. A base is indeed a molecule or ion that can receive a hydronium ion from just an acid.

1)Because HCl is a stronger acid than acetic acid, the pH of 0.01M acetic acid has greater value than the pH of 0.01M HCl. The pH value of stronger acid is lower.

2)CH\(_3\)COOH + H\(_2\)O  ⇄ CH\(_3\)COO⁻+  H\(_3\)O⁺

 0.01             0               0

 -x              +x                +x

 0.01-x           +x        +x

Ka=[ CH\(_3\)COO⁻][H\(_3\)O⁺]/[CH\(_3\)COOH]

1.8×10⁻⁵ = [x][x ]/[  0.01-x ]

x=1.34×10⁻³

pH = -log[H⁺]

     =  -log[1.34×10⁻³]

     =2.88

Therefore, because HCl is a stronger acid than acetic acid, the pH of 0.01M acetic acid has greater value than the pH of 0.01M HCl. 2.88 is the   pH of a 0.01 M acetic acid.

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Considering the ideal gas law, an amount of moles of 0.037 moles of SO₂ were produced using the given conditions.

An ideal gas is defined as one in which all collisions between atoms or molecules are perfectly elastic and in which there are no intermolecular attractive forces, so they do not interact with each other, and do not occupy volume.

The pressure, P, the temperature, T, and the volume, V, of an ideal gas, are related by a simple formula called the ideal gas law:

P×V = n×R×T

where:

In this case, you know:

Replacing  in the ideal gas law:

1.05263 atm× 0.87 L = n× 0.082 (atmL)÷(molK)× 298 K

Solving:

n= [1.05263 atm× 0.87 L]÷ [0.082 (atmL)÷(molK)× 298 K]

n= 0.037 moles

Finally, there are 0.037 moles of SO₂.

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Answer:

Explanation:

5 moles of hydrogen gas would react with 2.5 of the available 3 moles of oxygen gas, to form 5 moles of water. The molar mass of water is 18 g/mol, so you would end up with 5 x 18 = 90 g of water.

The mass percent of hydrogen in CH₄O is 12.5%.

Mass percent is the mass of the element divided by the mass of the compound or solute.

Step 1: Calculate the mass of the compound.

mCH₄O = 1 mC + 4 mH + 1 mO = 1 (12.01 amu) + 4 (1.00 amu) + 1 (16.00 amu) = 32.01 amu

Step 2: Calculate the mass of hydrogen in the compound.

mH in mCH₄O = 4 mH = 4 (1.00 amu) = 4.00 amu

Step 3: Calculate the mass percent of hydrogen in the compound.

%H = (mH in mCH₄O / mCH₄O) × 100%

%H = 4.00 amu / 32.01 amu × 100% = 12.5%

The mass percent of hydrogen in CH₄O is 12.5%.

CO2 = 1.580 grams H2O = 0.592 grams Lookup the molar mass of each element in the compound Carbon = 12.0107 Hydrogen = 1.00794 Oxygen = 15.999 Calculate the molar mass of CH4O by adding the total masses of each element used. 12.0107 + 4 * 1.00794 + 15.999 = 32.04146 Now calculate how many moles of CH4O you have by dividing by the molar mass. m = 1.15 g / 32.04146 g/mole = 0.035891 mole Now figure out how many moles of carbon and hydrogen you have. Carbon = 0.035891 moles Hydrogen = 0.035891 moles *

Therefore, The mass percent of hydrogen in CH₄O is 12.5%.

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The pace of the person is 10.14 km/h.

This can be defined as the speed at which a body moves.

To calculate the pace of the person, we use the formula below.

Formula:

Where:

From the question,

Given:

Substitute these given values into equation 1

Hence, The pace of the person is 10.14 km/h.

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The rank order of acidity is para nitro phenol > meta nitro phenol > phenol > Para amino phenol.

The nitro group is a powerful electron withdrawing group. As a result, by removing electron density from the carboxylate ion, it increases the acidity of benzoic acid. This effect is strongest when the nitro group is in the ortho position (the effect is known as ortho effect).

The chemical structure of an acid can be used to predict its relative strength. An acid is generally stronger when the H-A bond is more polar. When the H-A bond is weaker and the conjugate base, A, is more stable, acidity increases.

Thus, The rank order of acidity is para nitro phenol > meta nitro phenol > phenol > Para amino phenol.

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Answer:

Polar zone

I hope it helps

have a nice day

#Captainpower

pls mark me brainliest

#miraculous

Answer:

ok, here is your answer

Explanation:

AI-generated answer

To find the mass of oxygen that reacted, we need to use the Law of Conservation of Mass, which states that in a chemical reaction, the mass of the reactants equals the mass of the products.

First, we need to find the number of moles of hydrogen that reacted:

Molar mass of hydrogen (H₂) = 2.016 g/mol

Number of moles of H₂ = mass/molar mass = 46.2 g/2.016 g/mol = 22.92 mol

Next, we need to use the balanced chemical equation to find the number of moles of water produced:

hydrogen + oxygen → water

2H₂ + O₂ → 2H₂O

From the equation, we can see that for every 2 moles of H₂, 1 mole of O₂ is required to produce 2 moles of H₂O. Therefore, the number of moles of O₂ required to produce 22.92 moles of H₂O is:

Number of moles of O₂ = 1/2 x 22.92 mol = 11.46 mol

Finally, we can find the mass of oxygen that reacted by using its molar mass:

Molar mass of oxygen (O₂) = 32.00 g/mol

Mass of oxygen = number of moles x molar mass = 11.46 mol x 32.00 g/mol = 366.72 g

Therefore, the mass of oxygen that reacted is 366.72 g.

The following mechanistic steps is the most likely route for the formation of the cyclic ether shown is :        ..                                              ..

                                                :  Cl - CH₂ - CH₂ - CH₂ - CH₂ - O :⁻

                                                    °°                                            °°

The ether can be formed by the SN² reaction mechanism's the alkoxide ion will react with the primary alkyl halide. the formation of ether from this reaction is very common.

                                                   ..                                             ..

                                                :  Cl - CH₂ - CH₂ - CH₂ - CH₂ - O :⁻

                                                    °°                                            °°

The alkoxide ion forms the cyclic ether to the attacks the electrophilic carbon. the anion takes the H from the OH and the O become O negative. Thus, this step is the correct for mechanistic steps is the most likely route for the formation of the cyclic ether shown.

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Answer and Explanation:

If the future did not address global warming properly, then the world will become too hot faster than it should, and the days will get extremely hot, and in the distant future, lead to our extinction.

To address this problem, we can spread the awareness about it, get people to think open minded and not think that global warming is a joke, and plant trees, which takes in the carbon dioxide we exhale.

#teamtrees #PAW (Plant And Water)

Answer:

No, Fe^3+will not interfere

Explanation:

Whether of not the two ions will interfere will depend on the region of the visible spectrum where they absorb.

Now Fe^3+  at a wavelength of 600nm for the determination of Cu^2+ ion will not interfere.  This is because,  Fe^3+ absorbs in the blue (450-480 nm) region while Cu+2 absorbs in the yellow (560-600 nm) region then appears blue in color.

Answer:

2.41x10²¹ atoms

Explanation:

mass of nickel that are present in the coin can be determined Using ( 25% nickel) with j mass of coin= 0.942g )

mass of nickel = (0.942g) × (25/100)

= 0.2355g of Nickel

We need to convert this " gram" into " moles"

Mole= mass/ molar mass

Molar mass= 58.69 g/mol

0.2355 g) / (58.69 g/mol)

= 0.004 mol

We need to convert the moles to

number of atoms.

Avogadro's number= 6.023x10²³ atoms/mol

(0.004 × 6.023x10²³ atoms/mol)

=2.41x10²¹ atoms

Answer: 6.23

Explanation:

1) solve for pH  

pH=-log (H3O+) = - log 1.7 X 10^-8 =7.77

2) now do 14-pH  = 14 -7.77=6.23

Hence option oxidizing and cause damage to proteins is correct.

Halogens are highly reactive oxidizing agents that cause damage to proteins.

Fluorine, chlorine, bromine, iodine (I), astatine, and tennessine are the six chemically related elements that make up the group of elements known as "halogens" in the periodic table. However, some authors would exclude tennessine because its chemistry is unknown and is theoretically expected to be more similar to that of gallium.

In a redox chemical reaction, an oxidising agent is a material that "accepts" or "receives" an electron from a reducing agent. So every substance that oxidises another material is an oxidant.

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This element is in group 1.

According to the octet rule, this element would be expected to form an ion with a charge of +1.

If X is in period 5, the ion formed has the same electron configuration as the noble gas Krypton

The symbol for the ion is Rb⁺

Electronic configuration refers to the arrangement of electrons in the orbitals of an atom or molecule, indicating the energy level of the electrons, the number of electrons in each energy level, and the number of electrons in each orbital.

Considering the given element:

It has one valence electron, hence it is in group 1. Group 1 elements form ions with a charge of +1.

Losing one electron will give the ion the same electron configuration as Kyrton since it is the noble gas in Period 4.

The element is rubidium and the ion is Rb⁺.

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Answer: the answer is A.

Explanation:

Bailee explained that when traveling to the moon  mass of the objects is which changes when the gravitational pull changes. Bailee is incorrect. Both the mass and weight will change. Option C is correct.

Mass is the physical quantity of any substance or object and weight is the measurement of amount of force acting on a particulate body of the mass.

At the moon both the  mass and weight is divided by 6 means the  mass and weight is six times lighter then the expected  mass and weight on earth.

Therefore, Bailee is incorrect. Both the mass and weight will change. Option C is correct. which changes when the gravitational pull changes

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Answer:

The number of moles of AlBr3 = Molarity × Volume

= 0.400 × 0.700

= 0.28 moles

1 mole of AlBr3 gives 3 moles of Br- ions

That is

AlBr3 = Al3+ + 3Br-

Therefore, 0.045 moles of AlBr3 will yield 3 × 0.28 = 0.84 moles

Thus; they are 0.84 moles of bromide ions

The equipment you might use to prevent energy being lost during the heating of the ice/water is : calorimeter.

A calorimeter is an object used for the process of measuring the heat of chemical reactions or physical changes and also heat capacity. Differential scanning calorimeters, isothermal micro calorimeters, titration calorimeters and accelerated rate calorimeters are the most common types.

Device used to measure the amount of heat involved in a chemical or physical process is called  calorimeter. For example, when exothermic reaction occurs in a solution in calorimeter, heat produced by the reaction is absorbed by solution, that results in increase in temperature.

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First, we write the reaction to solve this:

Al(NO₃)₃(aq) => Al³⁺(aq) + 3NO₃⁻(aq)

We need to calculate the concentration of the salt:

Molarity = moles of Al(NO₃)₃ / Volume of solution (L)

Molarity = 2.00 moles / 2.00 L = 1.00 mol/L

The salt is completely disociated, so the concentration of NO3- ion is:

Concentration NO3- = 3 x Concentration of the salt = 3 x 1.00 mol/L = 3.00 mol/L

Answer: 3.00 mol/L

The balanced chemical equation is the representation of the elements with the same proportion of elements on both sides. The balanced equation is, 2CH₃(CH₂)₄CH₃ + 19O₂ → 12CO₂ + 14H₂O.

An equation is said to be balanced if the number of atoms of the element on the right side is the same as that of the left side of the reaction.

CH₃(CH₂)₄ CH₃(g) + O₂(g) → CO₂(g) + H₂O(g)

Here the number of carbon, hydrogen, and oxygen are unbalanced.

Coefficients are added before carbon, oxygen, and a hydrogen atom. First, 2 is added before the carbon on the reactant side and 12 at the carbon of the product side.

After this, the number of hydrogen is balanced by adding 14 on the product side followed by adding 19 on the oxygen of the reactant side.

The balanced equation: 2CH₃(CH₂)₄CH₃ + 19O₂ → 12CO₂ + 14H₂O

Therefore, 2CH₃(CH₂)₄CH₃ + 19O₂ → 12CO₂ + 14H₂O is the balanced equation.

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Answer:

dont know but i went to the store td and i bought some food then after i ate it i had to use the bathroom n i fell on my way there and  it hurt

Explanation:

(Many social behaviors of animals are adaptive, meaning that being social ultimately increases an animal's fitness — its lifetime reproductive success. One example of how social behavior is adaptive is aggregation against predators.)

Answer:

#3 is the percentage for sodium i believe and 4 is right

Explanation: