If you have half a mole of octane (c8h18), how much water is produced? 2c8h18 + 25o2 --> 16co2 + 18h2o

Answer:IVF

Explanation:

Answer:

By observing chemical reactions, we are able to understand and explain how the natural world works. Chemical reactions turn food into fuel for your body, make fireworks explode, cause food to change when it is cooked, make soap remove grime, and much more.

hope it helps you

Answer:

volume = 0.288 L

Explanation:

To find the volume, you need to (1) convert grams LiBr to moles LiBr (via molar mass) and then (2) calculate volume (via molarity equation). It is important to arrange the ratios in a way tat allows for the cancellation of units (desired units in the numerator).

(Step 1)

Molar Mass (LiBr): 6.9410 g/mol + 79.904 g/mol

Molar Mass (LiBr): 86.845 g/mol

100 grams LiBr           1 mole
-----------------------  x  ------------------  =  1.15 moles LiBr
                                  86.845 g

(Step 2)

Molarity (M) = moles / volume (L)

4 M = 1.15 moles / volume

(4 M) x volume = 1.15 moles

volume = 1.15 moles / 4 M

volume = 0.288 L

Answer:

ketones and aldehydes

Explanation:

just took it!

It is important to record your data with all the decimals provided by the instruments even if they are zero because it increases the accuracy of the measurement.

Accuracy refers to the ability to take correct measurement values during a specific experiment and/or observational procedure.

Accuracy is a fundamental issue in data analysis and helps to obtain conclusions from a given experimental procedure.

In conclusion, it is important to record your data with all the decimals provided by the instruments even if they are zero because it increases the accuracy of the measurement.

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Answer:

=> 11. d. Moon

The moon is not a light source because it does not emit its own light.

=> 12. b. The light is refracted.

13. What is the substance produced by a chemical reaction called?

=> b. Product

Answer:

101.18 grams

Explanation:

From the equation you can see that the same number of MOLES will be required as MOLES of aluminum chloride produced.

Mole weight of aluminum chloride = 26.981 + 3 * 35.45 = 133.331 gm

     500 gms of this is then    500 / 133.331 = 3.75 moles

So you need 3.75 moles of aluminum

    3.75 moles * 26.981 g/mole = 101.18 grams of Al

101.07 grams of aluminum (Al) are required to produce 500 grams of aluminum chloride (AlCl₃) according to the given chemical equation.

Mass is a fundamental physical property of matter that represents the amount of substance contained in an object. It is a measure of the total amount of matter or material in an object, and it is typically measured in units such as grams (g) or kilograms (kg).

Molar mass, also known as molecular mass or formula mass, is the mass of one mole of a chemical substance. It is usually expressed in grams per mole (g/mol). Molar mass is a fundamental concept in chemistry that allows scientists to relate the mass of a substance to the number of moles it contains.

The balanced chemical equation is:

2Al + 3Cl₂ → 2AlCl₃

From the balanced equation, 2 moles of aluminum (Al) react with 3 moles of chlorine gas (Cl₂) to produce 2 moles of aluminum chloride (AlCl₃).

Molar mass of Al = 26.98 g/mol

Molar mass of Cl = 35.45 g/mol

Molar mass of AlCl₃ = 2 × (26.98 g/mol) + 3 × (35.45 g/mol)

= 133.34 g/mol

moles of AlCl₃ = mass / molar mass

moles of AlCl₃ = 500 g / 133.34 g/mol

= 3.749 moles

In the reaction, 2 moles of Al react to produce 2 moles of AlCl₃.

Therefore, moles of Al = moles of AlCl₃

moles of Al = 3.749 moles

Step 4: Calculate the mass of Al required:

mass of Al = moles of Al × molar mass of Al

mass of Al = 3.749 moles × 26.98 g/mol

= 101.07 g

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The percent yield of the reaction is 63.4%; option D

Percent yield of a reaction is given as:

Actual yield of the reaction = 0.856 g

Expected yield = 1.8/32 * 4/5 * 30 = 1.35 g

Percent yield = 0.856/1.35 * 100 % = 63.4 %

Therefore, the percent yield is 63.4%.

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Answer:

Explanation:

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[tex]\\ \blue{MaggieEve}[/tex]

267.14 gm grams[tex]Fe_2O_3[/tex] would be required to make 187 g Fe.

A balanced equation is an equation for a chemical reaction in which the number of atoms for each element in the reaction and the total charge is the same for both the reactants and the products.

The balanced equation:

Fe₂O₃ + 3 CO ⟶ 3 CO₂ + 2 Fe

We know that the molecular mass of iron-oxide = 160 g/mole.

We know that the molecular mass of iron = 56 g/mole.

From the above reaction, we can say that

1 mole of iron -oxide produces 2 moles of iron

160 gm of iron oxide produce 112 gm of iron

So,

1 gm of iron required 160÷112 =1.42 gram of iron oxide

Therefore,

187 gm of iron required 1.42 x 187 =265.54 of iron oxide.

Therefore 187 gm of iron required 267.14 iron oxide.

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The cell notation is [tex]Pb_{(s)}[/tex]  [tex]Pb^{2+} _{(aq)}[/tex] ║[tex]Cu^{+2}_{aq}[/tex]  [tex]Cu_{(s)}[/tex] and the cell potential is 0.464

The reaction occurred while losing of hydron is known as oxidation reaction

We can also tell that the reaction occurred while gaining of oxygen atom is known as oxidation reaction.

The reaction occurred while gaining of hydrogen is known as reduction reaction or we can say that the reaction occurred while losing oxygen atom is known as reduction reaction

An electrochemical cell's cell potential is defined as the difference in potential between two half cells. The electrons' capacity to go from one half cell to the other is what causes the potential difference. As a result of the chemical reaction being a redox reaction, electrons can travel across electrodes.

Calculating the Cell potential

E°cell  = E°(reduction) - E°(oxidation)

           = 0.34 - (-0.0124)

           = 0.464

Hence the cell potential is 0.464

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Answer:

For sp3 hybridized central atoms the only possible molecular geometry is tetrahedral.

According to the research, fatty acids, which are long molecules in the form of a hydrocarbon chain, are a component of lipids.

They are hydrophobic and water-insoluble molecules that are formed from the esterification of alcohols with fatty acids.

Lipids are a vital part of the diet of living beings since many vitamins are assimilated in the presence of certain lipids and many fatty acids are essential for animal metabolism.

Therefore, we can conclude that according to the research,  fatty acids, which are long molecules in the form of a hydrocarbon chain, are a component of lipids.

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Freebase is defined as a method of preparing cocaine as a chemical substance so that it can be smoked because is is extracted or deduced from the natural source which is plant

Freebase is a that is use while producing cocaine in other to free or extract the base from the natural source which is plant and after which it is grinded into powder so that it can be smoked or sniffed.

Therefore, Freebase is defined as a method of preparing cocaine as a chemical substance so that it can be smoked because is is extracted or deduced from the natural source which is plant

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Answer:

'An ion has a non-zero electric charge. A radical has an atom with unfilled electron shells and so is very reactive, but is electrically neutral.'

'Atoms are single neutral particles. Molecules are neutral particles made of two or more atoms bonded together.'

'The primary difference that lies between these organic compounds and inorganic compounds is that organic compounds always have a carbon atom while most of the inorganic compounds do not contain the carbon atom in them.'

Organic and inorganic compounds:

Similarities:::---

1) In both organic and inorganic compound, the elements joining in making compound complete their octet.

2) Organic compound shows isomerism (R/S , E/Z , cis/trans, enantiomers, diastereomers, etc), just as inorganic compound do (Δ/Λ, enantiomers, R/S enantiomers, cis/trans, fac/mer isomers, etc).

3) Organic compound and inorganic compounds can be very active in chemical reactions, e.g. organolithium reagents could be flammable or even pyrophoric (generally stored under 10°C), while inorganic reagents like in this paper are quite rapid...

Differences:::---

1) Organic compound are very long in size so they can make polymer but inorganic compound are not very long but its structure might me complex.

2) The boiling,melting point of organic compound is lass than inorganic compound.

3) Organic compound always contains carbon but inorganic compounds might not.

4) Organic compound

_____________________________

Ion and Radical Atoms:

In some sense they are a bit similar. The main difference is that a neutral radical has no charge imbalance between the protons and electrons, but the cation or anion does.

Ions are written with an explicit charge because of that charge imbalance, but radicals may or may not have an imbalance of charge. Just because a molecule is a radical doesn't mean it's neutral.

For example, if you shoot 2-pentanone with an electron beam for Electron "Impact" Mass Spectroscopy, where you essentially study molecules whose structures break into smaller pieces as a result of interacting with stray electrons to identify the molecules, you get a cationic radical (middle, or far right of the following diagram).

Answer: A. It indicates the direction in which the reaction occurs.

The number of moles of oxygen required to completely react with 54 g of aluminum is 1.5 moles.

moles = reacting mass/molar mass

moles = 54/27

moles = 2 moles

From the given reaction of oxygen and aluminum;

4Al +  30₂   →   2Al₂O₃

4 moles of Al ----------> 3 moles of oxygen

2 moles of AL --------> ? moles of oxygen

= (2 x 3)/4

=  1.5 moles

Thus, the number of moles of oxygen required to completely react with 54 g of aluminum is 1.5 moles.

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Answer:

C

Explanation:

Got it right on a test

The instability of the nucleus is due to an imbalance between the electrostatic and strong nuclear forces, which is option D.

A nucleus can become unstable if there is an imbalance between the electrostatic repulsion between protons and the strong nuclear force that holds the nucleus together. The electrostatic repulsion between protons tends to push them apart, while the strong nuclear force acts to hold the protons and neutrons together.

If the number of protons in the nucleus is too large, the electrostatic repulsion becomes stronger, making the nucleus unstable. Similarly, if the number of neutrons is too large or too small compared to the number of protons, it can also lead to an imbalance in the forces and instability of the nucleus.

Therefore, the correct option is option d.

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Answer:

the answer to the question is X3Y2

Thomson's experimental data does support the Rutherford model.

The atom consists of matter that may be split without releasing electrical charges.

It's also the smallest unit of matter with chemical element features. As a result, the atom is the fundamental unit of science.

Rutherford was the one who first published the nuclear model of the atom. According to his atomic model, an atom's volume is largely empty,

The center of the atom houses the nucleus, which is made up of protons and neutrons, and its electrons follow certain pathways as they orbit it.

When compared to Rutherford's discoveries, the study of certain other scientists, like Dalton, Neil Bohr, and JJ Thomson, is mostly consistent.

For instance, Dalton's atomic theory assumed that atoms interact to create compounds and are nearly the same size.

Rutherford's theory states that atoms have a finite amount of electrons that may be shared to form compounds.

Rutherford's discoveries, which gave rise to the concept of shells, are also consistent with the Bohr model, which holds that electrons orbit the nucleus in certain shells.

Despite the fact that Rutherford's model was the best atomic model, it nevertheless drew from a number of prior studies and was compatible with their findings.

Hence Thomson's experimental data does support the Rutherford model.

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Answer:

So, in 1 mol there are 6.02x10^23 atoms, regardless of the susbtance, only the weight of the mol changes. Doing a simple rule of 3 we can get many of the answers to your questions.

Explanation:

1mol of Ar → 6.02x10^23 atoms

0.25 mol → X

So now what we do is (0.25mol * 6.02x10^23 atoms)/1 mol = X

That gives us 1.505x10^23 atoms in 0.25 mol of Ar.

For this I'm guessing you mean the stable form of oxygen, O2. The Avogadro constant stays well, constant.

1 mol of O2 → 6.02x10^23 molecules

1.0×10^-4 mol of O2 → X molecules

So you can do (1.0×10^-4 * 6.02x10^23) / 1mol = X

(I feel like this is homework, so i will help you, but not give you all the answer, will be good practice to try yourself) :)

For this you need to know the weight of a mol of Be. Luckily the periodic table gives us that number. The number under each element is the weight in grams of 1 mol .

Answer:

C- 2.48925 H- 3.9901 O- 1

Explanation:

Read the instructions

Answer:

Faraday’s – First Law of Electrolysis

It is one of the primary laws of electrolysis. It states, during electrolysis, the amount of chemical reaction which occurs at any electrode under the influence of electrical energy is proportional to the quantity of electricity passed through the electrolyte.

Faraday’s – Second Law of Electrolysis

Faraday’s second law of electrolysis states that if the same amount of electricity is passed through different electrolytes, the masses of ions deposited at the electrodes are directly proportional to their chemical equivalents.

From these laws of electrolysis, we can deduce that the amount of electricity needed for oxidation-reduction depends on the stoichiometry of the electrode reaction.

The product of an electrolytic reaction depends on the nature of the material being electrolysed and the type of electrodes used. In the case of an inert electrode such as platinum or gold, the electrode does not participate in the chemical reaction and acts only as a source or sink for electrons. While, in the case of a reactive electrode, the electrode participates in the reaction.

Hence, different products are obtained for electrolysis in the case of reactive and inert electrodes. Oxidizing and reducing species present in the electrolytic cell and their standard electrode potential too, affect the products of electrolysis.

FAQs

1. What’s a Faraday?

Ans: The Faraday is an electric charge volume unit without measurements, equal to approximately 6.02 x 10 23 electric charge carriers.

2. Why is Faraday’s law important?

A shifting magnetic flux creates an electric field, according to Faraday’s law. Faraday’s law is particularly important since it addresses the connection of the E-field and the B-field and understands that this connection necessitates flux fluctuation over time.

3. How does electrolysis remove rust?

Ans: Electrolysis is a method of removing iron oxide by passing a small electrical charge through the rusty metal from a battery or battery charger to induce ion exchange while the device is submerged in an electrolyte solution.

4. What happens to water during electrolysis?

Ans: Water’s Electrolysis. By passing an electrical current through it, water can be decomposed. When this happens, an oxidation-reduction reaction is caused by the electrons from the electric current.

5. What is the negative electrode called in electrolysis?

Ans: Through electrolysis, the negatively charged electrode is called the cathode. The positively charged electrode is called the anode in electrolysis. Negatively charged ions are moving towards the anode.

Hope it helps!

Answer:

Faraday's law states that the absolute value or magnitude of the circulation of the electric field E around a closed loop is equal to the rate of change of the magnetic flux through the area enclosed by the loop.

Explanation:

Hope It Helps!!!

Answer:

Explanation:

Organic ChemistryOrganic Chemistry It is often known as the 'Chemistry of Life' that deals with the structure, properties and reactions of organic compounds. A study of Organic Chemistry helps students to identify and classify the various naturally occurring compounds and to create one with desired properties and functions.

The branch of chemistry that deals with the structure and properties of naturally occurring molecules is Organic Chemistry.

Chemistry is divided into several branches in which we learn inorganic chemistry, Physical chemistry, analytical chemistry and also organic chemistry. Organic chemistry deals with natural compounds in which we learn about chemical and physical properties of natural compounds and then the structures of organic compounds as well. We study about the formation of different organic compounds and which kind of compounds will be useful in which field.

For example- Alcohols can be used in vehicles, as solvents, it can be used to form many other organic compounds as well.

Aldehydes, Ketones are the organic compounds which has medicinal use and helps in forming other compounds as well.

Therefore, The branch of chemistry that deals with the structure and properties of naturally occurring molecules is Organic Chemistry.

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Answer:

79.7%

Explanation:

Percentage yield = (actual yield/theoretical yield)*100%

Therefore percentage yield for this experiment is: [tex]\frac{192}{241} *100%[/tex]%

[tex]= 0.79668*100[/tex]%

Percentage yield = 79.668%

Rounded to 3 significant figures is 79.7%

Hope this helped!

Answer:

alcohol

Explanation:

alcohol thus, C2H5OH

Answer:

= 62g

Explanation:

We have been asked to find the mass of Na2O having 6.02 x 10^23 units.

We know that one mole of a substance contains 6.02 x10^23 units/particles.

That means we have one mole of Na2O.

To find the mass of Na2O we use the formula,

mass = number of moles x formula mass

= 1 mole x 62g/mol

= 62g

Therefore the mass of Na2O with 6.02 x 10^23 units is 62g.

What is the empirical formula for the molecular formula given? Molecular formula: C5H12O

The empirical formula for the given molecular formula C₅H₁₂O. As the molecular formula cannot be reduced into simplest ratio, therefore, the empirical formula and the molecular formula are the same.

The empirical formula can be described as the simplest ratio of the number of different atoms present in a compound. The molecular formula of the compound can be described as the actual number of each different atom in a molecule. This formula is generally used and is also a multiple of the empirical formula of a compound.

The empirical formula provides the ratio of the number of atoms of a chemical in a given compound. The percentage composition directly gives the empirical formula of the compound.

The molecular formula can be reduced into the empirical formula of the compound by dividing the subscripts with a number that can provide the smallest ratio of the elements in the compound.

For the given molecular formula, the further simplest or most reduced ratio cannot be possible. Therefore, the empirical formula of the compound will be the same as the molecular formula. Therefore empirical formula of the compound is C₅H₁₂O.

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Answer:

B. Nuclear fusion is the joining of two or more nuclei into one nucleus.

The best definition of nuclear fusion : Nuclear fusion is the joining of two or more nuclei into one nucleus.

Nuclear reaction, change in the identity or characteristics of an atomic nucleus, induced by bombarding it with an energetic particle.

The bombarding particle may be an alpha particle, a gamma-ray photon, a neutron, a proton, or a heavy ion.

Nuclear Fusion reactions power the Sun and other stars.

In a fusion reaction, two light nuclei merge to form a single heavier nucleus.

The process releases energy because the total mass of the resulting single nucleus is less than the mass of the two original nuclei. The leftover mass becomes energy.

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