true or false: the nitrogen atom in isoquinoline (shown below) has a delocalized lone pair of electrons.a bond line structure of isoquinoline with smiles string c1ccc2cnccc2c1.

The equation related to reaction between Sulfur dioxide and oxygen to produce sulfur trioxide is 2SO\(_2\)(g) + O\(_2\)(g) \(\rightarrow\) 2SO\(_3\) (g).  SO\(_2\)  is limiting reagent.

The reactant that controls how much of the products are generated inside a chemical reaction is known as the limiting reagent. Since some of the other reactants remain that after limiting reagent has been used fully, it is occasionally discovered that they are in excess in the reactions. The theoretical yield is the most product that can theoretically be produced.

2SO\(_2\)(g) + O\(_2\)(g) \(\rightarrow\) 2SO\(_3\) (g)

moles of SO\(_2\) =20.0 g / 64.07

                      =0.312moles

moles of O\(_2\)= 15.6 g/32

                   =0.487moles

On dividing the moles by stoichiometry, out of  O\(_2\) and SO\(_2\), SO\(_2\)  is limiting reagent.

Therefore,  the equation related to reaction between Sulfur dioxide and oxygen to produce sulfur trioxide is 2SO\(_2\)(g) + O\(_2\)(g) \(\rightarrow\) 2SO\(_3\) (g).  SO\(_2\)  is limiting reagent.

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Answer:It has a specific role, as well as a variety of functions for the benefit of our society: creating new knowledge, improving education, and increasing the quality of our lives. Science must respond to societal needs and global challenges.

Explanation:Science is valued by society because the application of scientific knowledge helps to satisfy many basic human needs and improve living standards. Finding a cure for cancer and a clean form of energy are just two topical examples. Education could become the most important application of science in the next decades.

According to Coulomb's Law two ions in an ionic chemical bond that forms large electrostatic potential then the two will attract each other

Coulomb law states that bond energy is inversely related to the bond length and so factor which influence bond strength influence its length this can allow us to determine some trends in bind length and ionic compound  are held together by coulombic attraction and there is a negatively charged ion next to a positively charged ion and two will attract each other and when positively charged ion form a bond with negatively charged ion one atom donate electron to the other and this is known as ionic bind and the chemical molecule sodium chloride is an example

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it's 100,0002 pn a micropipettor

According to the linear conversion equation20 degrees Celsius is equivalent to 68 degrees Fahrenheit.

To convert a temperature from degrees Celsius to degrees Fahrenheit, we follow the given formula. Let's break down the steps:

1. Multiply the temperature in degrees Celsius by 1.8.

  This step accounts for the conversion factor between Celsius and Fahrenheit. The value 1.8 represents the ratio of the size of a degree Fahrenheit to a degree Celsius.

2. Add 32 to the result.

  The addition of 32 is necessary because the zero point on the Fahrenheit scale is 32 degrees below the zero point on the Celsius scale. This adjustment aligns the two scales properly.

By combining these steps, we obtain the linear equation: F = 1.8C + 32, where F represents the temperature in degrees Fahrenheit and C represents the temperature in degrees Celsius.

Using this equation, we can convert any given temperature from Celsius to Fahrenheit. For example, if we have a temperature of 20 degrees Celsius, we can substitute C = 20 into the equation:

F = 1.8(20) + 32

F = 36 + 32

F = 68

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Answer:exo becuse it is like temp

Explanation:

The volume of oxygen at STP obtained when 24.5 g of potassiumtrioxochrate(V) crystal are heated is 0.83 L.

At STP (Standard Temperature and Pressure, 0°C and 1 atm), 1 mole of any ideal gas occupies a volume of 22.4 L.

2K3[Fe(CN)6] → 3CO2 + 3Fe + 6CN + 2K2CO3

The molar mass of K3[Fe(CN)6] is:

3(39.1 g/mol K) + 1(55.8 g/mol Fe) + 6(26.0 g/mol C + 14.0 g/mol N) = 329.8 g/mol

Therefore, the number of moles of K3[Fe(CN)6] in 24.5 g is:

24.5 g / 329.8 g/mol = 0.0743 mol

According to the balanced equation, 2 moles of K3[Fe(CN)6] produce 1 mole of O2. Therefore, the number of moles of O2 produced is:

0.0743 mol K3[Fe(CN)6] × (1 mol O2 / 2 mol K3[Fe(CN)6]) = 0.0371 mol O2

Therefore, the volume of O2 produced at STP is:

0.0371 mol O2 × 22.4 L/mol = 0.83 L

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Triple orbital degeneracy refers to a situation where there are three orbitals that have the same energy level. This can give rise to interesting phenomena in chemistry and physics. For example, in a magnetic field, triple degeneracy can lead to the splitting of the energy levels into three distinct levels, known as Zeeman splitting.

They can help us understand the behavior of electrons in atoms and molecules and can have applications in fields such as quantum computing and materials science. Additionally, triple degeneracy can play a role in the electronic structure of certain molecules and can affect the way that they react with other molecules or undergo chemical transformations. Triple orbital degeneracy gives rise to a situation in which three orbitals of the same energy level are available for electrons to occupy. This means that electrons in these degenerate orbitals can be arranged in various ways while maintaining the same energy state. As a result, this can lead to a greater number of possible electron configurations and increased stability in certain molecular or atomic systems.

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Answer:

you can run out of money the supplier could run out or they could stop making the renewable.

Explanation:

Answer:

a

Explanation:

Air, steam, and water are the different phases of matter, including gas and liquid. Air, steam, and water under pressure are all examples of vapors. Thus, option A is correct.

Matter is any substance present in the form of liquid, solid, or gas. They have the property to get converted into another phase of matter under specific pressure and temperature conditions.

The vapor and air are present as an invisible gas, and water is a visible liquid that can be converted into a vapor state under high pressure and temperature condition. The process of evaporation can convert water molecules into vapor. Air and steam are used as vapor under pressure in inhalation devices.

Therefore, option A. the air, steam, and water are vapor under pressure.

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Answer: 84 g of N2 reacts completely to form 102 g of NH3.

Explanation: Change over the mass of N2 from grams to moles utilizing its molar mass:

84 g N2 × (1 mol N2 / 28 g N2) = 3 moles of N2

Utilize stoichiometry to calculate the number of moles of NH3 delivered, knowing that 3 moles of H2 are required to respond with 1 mole of N2:

3 moles of N2 × (2 moles of NH3 / 1 mole of N2) = 6 moles of NH3

Change over the number of moles of NH3 to grams utilizing its molar mass:

6 moles of NH3 × (17 g NH3 / 1 mol NH3) = 102 g NH3

At the point in the titration where 354 ml of 0.21 M HCOOH was added to 126 ml of 0.9 M NaOH, the pH is approximately 1.67.  

To find the pH at the point in the titration where 354 ml of 0.21 M HCOOH was added to 126 ml of 0.9 M NaOH, we can use the following steps:

Write the balanced chemical equation for the reaction between formic acid and sodium hydroxide:

HCOOH(aq) + NaOH(aq) → O(l) + CO(g) + NaOH(aq)

Use the volume of the unknown acid solution (354 ml) and the volume of NaOH solution needed to neutralize it (126 ml) to find the concentration of formic acid:

[HCOOH] = [HCOOH] x V

[HCOOH] = 354 ml x 0.21 M

[HCOOH] = 77.6 mM

Use the molarity of the formic acid and the volume of NaOH solution to find the concentration of NaOH:

[NaOH] = [NaOH] x V

[NaOH] = 126 ml x 0.9 M

[NaOH] = 115.6 mM

Use the concentrations of the acid and base to find the stoichiometric equation for the reaction:

[HCOOH] = [NaOH] x (1 + [HCOOH]/[NaOH])

[HCOOH] = 77.6 mM x (1 + 77.6 mM/115.6 mM)

[HCOOH] = 80.4 mM

Use the balanced stoichiometric equation and the volumes of the acid and base to find the change in volume of the solution during the titration:

ΔV = [HCOOH] x V_initial - [HCOOH] x V_final

ΔV = 80.4 mM x 354 ml - 80.4 mM x 126 ml

ΔV = 1284 ml - 1056 ml

ΔV = 228 ml

Finally, use the change in volume to find the volume of NaOH solution needed to neutralize the formic acid:

ΔV_NaOH = -ΔV

ΔV_NaOH = -228 ml

ΔV_NaOH = 228 ml

V_NaOH = -228 ml

V_NaOH = 228 ml

Therefore, at the point in the titration where 354 ml of 0.21 M HCOOH was added to 126 ml of 0.9 M NaOH, the pH is approximately 1.67.  

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Answer:

Option 4

Explanation:

Three products of this reaction is useful in cooking for making cakes rise is sodium carbonate

Here given reaction is

sodium hydrogen carbonate → sodium carbonate + carbon dioxide + water

NaHCO₃ → Na₂CO₃ + CO₂ + H₂O

The baking powder decomposed during cooking and released carbon dioxide gas and this make the cake rise by putting bubbles of gas in it and baking powder is included in the recipe to make the cake light and fluffy and the baking powder makes the syrup and mixture puff up and turn into a honeycomb with lots of little bubbles in it and it happen because the baking powder break down to form carbon dioxide and carbon dioxide is a gas and it causes the bubble in the mixture

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Answer:

1.2 cm^3

Explanation:

5.74 grams of a something occupies a volume of 1.2 cm^3 .

If water molecules suddenly stopped forming hydrogen bonds with each other, water transport in vascular plants would be severely impacted.

This is because hydrogen bonds are responsible for the cohesive properties of water, which allow water molecules to stick together and form a continuous column in the plant's xylem vessels. Without hydrogen bonds, water molecules would no longer be able to stick together and the continuous column of water in the xylem would be broken, making it difficult for plants to transport water from their roots to their leaves. Therefore, if water molecules stopped forming hydrogen bonds, vascular plants would likely struggle to survive as they heavily rely on the cohesive properties of water for their water transport system.

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Answer:

a.-137.2 kJ

Explanation:

If the first example symbol used is addition you can copy the plus and follow it how to solve the next!And also if the negative or positive sign.

The concentration of DNPA after 15 seconds is 0.22 mm.

This is calculated using the equation:

concentration after 15 seconds = initial concentration x (1/2)^(15/half-life)

In this case, the initial concentration is 1 mm and the half-life of DNPA is 8.28 seconds, so:

concentration after 15 seconds = 1 mm x (1/2)^(15/8.28) = 0.22 mm.

The concentration of DNPA after 15 seconds will depend on the rate of reaction and any other factors that may affect the concentration. Without additional information, it is not possible to accurately determine the concentration of DNPA after 15 seconds. It is important to consider the rate of reaction, as this will determine how quickly the concentration of DNPA changes over time.

Additionally, other factors such as temperature, pressure, and the presence of catalysts may also affect the concentration of DNPA.

Another method to determine the concentration of DNPA after 15 seconds, you would need to use the following formula:

Cfinal = Cinitial x e^(-kt)

Where Cfinal is the final concentration, Cinitial is the initial concentration, k is the rate constant, and t is the time elapsed. Plugging in the given values: Cfinal = 1 mm x e^(-k x 15) Without the value of k, it is not possible to determine the final concentration of DNPA using this second method. However, if you know the rate constant, you can plug it into the equation and solve for the final concentration.

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the answer is Te because O is oxygen.

Answer:

O

Explanation:

this is because it is oxygen

One mole of each element contains Avogadro's number of atoms, which is 6.022 x 10^23 atoms. Therefore, all three substances have the same number of atoms, which is 6.022 x 10^23 atoms.

The percent by mass of acetic acid in the vinegar is 2.33%.

Below are the steps to solve the given problem using the data table given below:

Step 1: Calculate the mass of the vinegar. Given,Mass of flask and vinegar solution- 25.17gMass of flask- 15.12gMass of vinegar solution = Mass of flask and vinegar solution - Mass of flask= 25.17 g - 15.12 g= 10.05 g

Step 2: Calculate the moles of NaOH used in the titration.Molarity of NaOH solution is 0.1 M.Moles of NaOH = Molarity × Volume of NaOH usedMoles of NaOH = 0.1 M × 39.00 mL (since the initial volume of NaOH is 0.00 mL)Moles of NaOH = 0.0039 moles

Step 3: Determine the moles of acetic acid used in the reaction.The balanced chemical equation for the reaction between NaOH and acetic acid (the main component of vinegar) is given below:CH3COOH + NaOH → CH3COONa + H2OMoles of NaOH = Moles of CH3COOH (since they react in a 1:1 ratio)Moles of CH3COOH = 0.0039 moles

Step 4: Calculate the mass of acetic acid used in the reaction.Molar mass of acetic acid is 60.05 g/mol.Mass of CH3COOH = Moles of CH3COOH × Molar mass of CH3COOH= 0.0039 moles × 60.05 g/mol= 0.234 gStep 5: Calculate the percent by mass of acetic acid in the vinegar.Percent by mass of acetic acid = (Mass of CH3COOH / Mass of vinegar solution) × 100%= (0.234 g / 10.05 g) × 100%= 2.33%.

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A partial pressure of 0.816 atm of CO₂ is required to dissolve 100.0 mg of CO₂ in 1.00 L of water.

The partial pressure of CO₂ required to dissolve 100.0 mg of CO₂ in 1.00 L of water is determined using the following equation:

where the gas constant is 0.0821 L·atm/(mol·K).

Convert 100.0 mg of CO₂ to moles:

100.0 mg / (44.01 g/mol) = 0.00227 mol

Solving for the partial pressure:

1.45 g/L / (44.01 g/mol) = partial pressure / (0.0821 L·atm/(mol·K) x 298 K)

0.03296 mol/L = partial pressure / 24.8 L·atm/mol

partial pressure = 0.816 atm

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Answer:

こんにちは

Explanation:

Answer:This Should Be the Answer :)

Explanation:

iven: Molar mass of Au = 196.96 g/mol. The Number of moles = 15.3 moles. Hence, 15.3 moles of Au contains 3.01 103 g of Au.

The 2 moles carbon, 5 moles hydrogen, 1 mole nitrogen, and 2 moles oxygen  is the maximum number of moles of glycine that could be made in that flask, with the specified ingredients.

What is mole ?

A mole is the atom's elementary particle, an ion. The mole of the substance is always related to the Avogadro number. The mole is always associated with the weight or mass of the element or substance. The standard unit of a mole is mol. The mole is a significant factor of the reactant and products to form an equation. A mole calculates the atom, ion, and substance weighs.

What is molecule?

The number of atoms that make up a molecule might vary. Pillows, sheets, and mattress toppers are now part of Molecule's growing line of sleep essentials. To give sleepers a cool, supportive surface, the Molecule AirTEC Mattress Topper blends three layers of open-cell memory foam, AirTEC foam, and polyfoam.

Therefore, The 2 moles carbon, 5 moles hydrogen, 1 mole nitrogen, and 2 moles oxygen  is the maximum number of moles of glycine that could be made in that flask, with the specified ingredients.

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