How many molecules are in 1200 g of acrylonitrile (C3H3N), a chemical used in the production of plastic
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Answer 1

Answer: [tex]136.2\times 10^{23}[/tex] molecules

Explanation:

According to avogadro's law, 1 mole of every substance contains avogadro's number of particles.

To calculate the moles, we use the equation:

[tex]\text{Number of moles}=\frac{\text{Given mass}}{\text {Molar Mass}}=\frac{1200g}{53.06g/mol}=22.62moles[/tex]

1 mole of acrylonitrile has = [tex]6.023\times 10^{23}[/tex] molecules

Thus 22.62 moles of  acrylonitrile has = [tex]\frac{6.023\times 10^{23}}{1}\times 22.62=136.2\times 10^{23}[/tex] molecules

Answer 2

Taking into account the definition of Avogadro's number, 1.36×10²⁵ molecules of C₃H₃N are in 1200 g.

Avogadro's Number

Avogadro's Number or Avogadro's Constant is called the number of particles that make up a substance (usually atoms or molecules) and that can be found in the amount of one mole of said substance. Its value is 6.023×10²³ particles per mole. Avogadro's number applies to any substance.

Mass molar

The molar mass of substance is a property defined as its mass per unit quantity of substance, in other words, molar mass is the amount of mass that a substance contains in one mole.

The molar mass of a compound (also called Mass or Molecular Weight) is the sum of the molar mass of the elements that form it (whose value is found in the periodic table) multiplied by the number of times they appear in the compound.

This case

In this case, you know the molar mass of the elements is:

C= 12 g/moleN= 14 g/moleH= 1 g/mole

So, the molar mass of the compound C₃H₃N is calculated as:

C₃H₃N= 3× 12 g/mole + 3× 1 g/mole + 14 g/mole

Solving:

C₃H₃N= 53 g/mole

You have 1200 g of C₃H₃N. So, knowing its molar mass, you can calculate the number of moles that contain a mass of 1200 g as:

1200 g×[tex]\frac{1 mole}{53 grams} [/tex]= 22.64 moles

Then you can apply the following rule of three: If by definition of Avogadro's number 1 mole of C₃H₃N contains 6.023×10²³ molecules, 22.64 moles of C₃H₃N contains how many molecules?

amount of molecules of C₃H₃N= (22.64 moles × 6.023×10²³ molecules)÷ 1 mole

amount of molecules of C₃H₃N= 1.36×10²⁵ molecules

Finally, 1.36×10²⁵ molecules of C₃H₃N are in 1200 g.

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Below is the balanced equation for the production of methane. Use it to explain how the law of conservation of matter is upheld in the decomposition of organic trash. 4C2H5O2N + 2H2O → 3CH4 + 5CO2 + 4NH3 Glycine + Water yields Methane + Carbon dioxide + Ammonia

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Answer:

See explanation

Explanation:

A balanced equation demonstrates the conservation of mass because the same number of of atoms of each element is found on both sides of the reaction equation.

This goes a long way to establish that mass or matter can neither be created nor destroyed but may be transformed from one form to another.

Looking at this balanced reaction equation;

4C2H5O2N + 2H2O → 3CH4 + 5CO2 + 4NH3

There are eight carbon atoms on both sides of the reaction equation

There are 24  hydrogen atoms on both sides of the reaction equation

There are 10 oxygen atoms on both sides of the reaction equation

There are four nitrogen atoms on both sides of the reaction equation

Hence, the law of conservation of matter is upheld in the decomposition of organic trash.

The balanced equation for the production of methane:

[tex]4C_2H_5O_2N + 2H_2O ----> 3CH_4 + 5CO_2 + 4NH_3[/tex]

Balanced chemical equation:

A balanced chemical equation occurs when the number of the atoms involved in the reactants side is equal to the number of atoms in the products side. According to the law of conservation of mass, when a chemical reaction occurs, the mass of the products should be equal to the mass of the reactants.

From given balanced equation for the production of methane:

[tex]4C_2H_5O_2N + 2H_2O ----> 3CH_4 + 5CO_2 + 4NH_3[/tex]

There are 8 carbon atoms,  24 hydrogen atoms, 10 oxygen atoms and 4 nitrogen atoms on both sides of the reaction equation, i.e. equal number of atoms on both reactants and products side.

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Please Help ASAP 100 points! Students set up a controlled experiment. They put five crickets in each of three identical containers. They set one container to 15C, one to 20C and one to 25C. Then they count the number of cricket chirps in each container during 1 hour. What are the TWO constants in this experiment? A: The number of crickets in each container. B:The temperature of each container. C: The number of cricket chirps. D: The kind of containers used.

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Answer:

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Explanation:

How many moles of water could you make with 0.5 mol of H2?

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Answer:

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Explanation:

8 grams of hydrogen and 32 grams of oxygen will combine to form how many grams of water?

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Answer:

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Explanation:

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Señalar la opción correcta El primer alcalino y el primer gas noble tienen la misma cantidad de niveles ocupados El primer alcalinotérreo tiene 2 e en su CEE El cuarto halógeno tiene 5 electrones de valencia

Answers

Answer:

El primer gas alcalino y el primer gas noble tienen el mismo número de niveles ocupados. Cierto.

La primera tierra alcalina tiene 2 e en su CEE. Cierto.

El cuarto halógeno tiene 5 electrones de valencia. Falso.

Explicación:

El primer alcalino y el primer gas noble tienen el mismo número de niveles ocupados porque el primer alcalino tiene 1 electrón y solo tiene una capa, mientras que el gas noble tiene 2 electrones y también tiene una capa. El primer alcalinotérreo tiene 2 e en su CEE debido a la presencia en el segundo grupo en la tabla periódica. El cuarto halógeno no tiene 5 electrones de valencia en su capa más externa, tiene 7 electrones en su capa más externa debido a la presencia en el grupo de siete de la tabla periódica.

Form a bond: Each electron has a charge of 1–, and each proton has a charge of 1+. You can calculate the charge of an atom by subtracting the number of electrons from the number of protons. Move an electron from the sodium to the chlorine atom.

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2. Chlorine has a charge of 1+ and sodium has a charge of 1-

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Answers

Answer:

1. Sodium has a charge of 1+ and chlorine has a charge of 1-

Explanation:

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Answers

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Answer:

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Explanation:

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Answers

To Find :

The mass, in grams, of [tex]1.505 \times 10^{23}[/tex] molecules of carbon disulfide (CS₂).

Solution :

Molecular mass of CS₂ = 76 gm/mol .

It means that mass of [tex]6.022 \times 10^{23}[/tex] molecules of CS₂ is 76 gm/mol.

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Answers

Answer:

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Explanation:

From the given information:

The ICE table can be computed as follows:

                       H2A         →          HA⁻    +   H⁺        

Initial                0.10                      0              0

Change              -x                        x               x

Equilibrium        0.10 - x                x               x

[tex]Ka_1 = \dfrac{[HA^-][H^+]}{[H_2A]}[/tex]

[tex]1.0\times 10^{-4}= \dfrac{[x][x]}{[0.10-x]}[/tex]

[tex]1.0\times 10^{-4}= \dfrac{(x)^2}{(0.10-x)}[/tex]

By solving for x;

x² = (1.0 × 10⁻⁴ × 0.1)

x = [tex]\sqrt{1\times 10^{-5}}[/tex]

x = [H⁺] =[HA⁻] = 0.00311 M

The acid then further its dissociation again, So;

The ICE table can be computed as follows:

                         HA⁻         →          A⁻    +   H⁺        

Initial                0.00311                  0        0.00311

Change              -x                        x               x

Equilibrium      0.00311 - x             x           0.00311 + x

[tex]Ka_2 = \dfrac{[A^-][H^+]}{[HA]}[/tex]

[tex]5.0 \times 10^{-5} = \dfrac{(0.00311+x)x}{(0.00311-x)}[/tex]

By solving for x;

x = [H⁺] = 0.0000484 M

Therefore, the first dissociation occurred at 0.00311 M and the second at 0.0000484 M.

Question 20 (1 point)
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Answers

Answer:

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Explanation:

The compounds given are;

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     Ethanol         C₂H₆O

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Answers

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Explanation:

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Answers

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Explanation:

. Classify each of the organisms in Figures 2 and 3 as
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Answers

Answer:

Herbivore, Omnivore & Carnivore

Explanation:

Herbivore they eat grass, Omnivores eat fruits and vegetables & Carnivores eat meat or flesh so that's why herb then omni and last carni bc so omni and herbi eat like the same thing

Answer:

Herbivore, Omnivore & Carnivore

Explanation:

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Answers

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A buffer is made from an acid - base conjugate pair as shown by option A

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This balance between the acid and its conjugate base allows the buffer to survive pH changes. Buffers are essential in biological systems because many biochemical processes are particularly sensitive to pH changes.

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the attached file

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Answers

Answer:

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Answers

The air is so dry that when it hits a snowpack, the frozen water evaporates, going directly from the ice to vapor and bypassing the liquid phase entirely. This is called sublimation, and it's a common way for snow to disappear in the arid West."

Answer:

Sublimation is the transition in physical state from solid (ice) to vapor with no intermediate liquid stage. In other words, the ice becomes water vapor without melting. Ideal weather conditions would be low humidity (to allow vaporization), high altitude (lower air pressure facilitates the transition), and strong sunlight (to provide the energy for the transition). High snow-packed mountain ranges offer all of these conditions. Since the temperature is too cold for evaporation, sublimation is needed to provide enough water vapor to feed the water cycle and promote precipitation elsewhere on the planet. Without it, the water would stay frozen in the snow and ice and reduce the amount of liquid water that would replenish the planet.

Explanation:

plato

Carbonate is a polyatomic ion whose oxidation number is -2. How many carbonate ions would be required to bond with aluminum in a neutral ionic compound?

Answers

Answer: Three carbonate ions are required to bond with aluminum in a neutral ionic compound.

Explanation:

An ionic compound is defined as the compound that is formed by the complete transfer of electrons takes place from one atom (forming cation) to another atom (forming anion).

A neutral ionic compound does not carry any charge on it.

As we know, aluminum is a trivalent atom having valency 3 and forms [tex]Al^{3+}[/tex] ion and carbonate is a divalent polyatomic ion having formula [tex]CO_3^{2-}[/tex].

They both combine to form a neutral ionic compound named aluminum carbonate.

By criss cross method, the chemical formula of aluminum carbonate is [tex]Al_2(CO_3)_3[/tex]

Hence, three carbonate ions are required to bond with aluminum in a neutral ionic compound.

A reversible reaction is said to be in equilibrium when
A)
all reactions stop leaving some reactant unused.
B)
the reaction goes to completion and no reactants are left.
9)
the rate of the backward reaction equals the rate of the forward reaction.
D)
the reaction rate of the backward reaction becomes larger than the rate of
the forward reaction.

Answers

Answer: C) the rate backward reaction equals the rate of the forward reaction.

Explanation:

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A. phospholipids
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Answers

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What are two reasons that someone would want to become a scientist?
1 point
Your answer

Answers

Two reason someone would want to become a scientist to make exciting discoveries and discovered new life on our planet. Also you could solve huge problems that somebody else couldn’t solved. This is why somebody would want to be a scientist.

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Answers

Answer:

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Explanation:

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