1. a) draw linoleate, which is 18:2cd9,12. draw the structure at ph 7. be sure to draw the c's and h's that are part of the double bond. b) what is the difference between linoleic acid and linoleate?

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%.

for such more questions on mass

https://brainly.com/question/24191825

#SPJ8

Dehydration synthesis reactions build molecules up and generally require energy, while hydrolysis reactions break molecules down and generally release energy. Carbohydrates, proteins, and nucleic acids are built up and broken down via these types of reactions, although the monomers involved are different in each case

Answer:

Dehydration synthesis reactions build molecules up and generally require energy, while hydrolysis reactions break molecules down and generally release energy. Carbohydrates, proteins, and nucleic acids are built up and broken down via these types of reactions, although the monomers involved are different in each case.

Explanation:

Answer:

Explanation:

According to the law of conservation of energy, energy cannot be created or destroyed, although it can be changed from one form to another. KE + PE = constant. The total energy of the ball stays the same but is continuously exchanged between kinetic and potential forms.

The big bang did not produce a significant proportion of elements heavier than helium because the temperatures and densities present in the early universe were not sufficient to support the fusion of heavier elements.

During the first few minute of the big bang, the universe was composed of mostly hydrogen and helium, with very small amounts of lithium and beryllium. As the universe expanded and cooled, the denser regions of the universe collapsed to form the first stars. Inside these stars, the intense pressure and heat generated by nuclear fusion reactions allowed for the production of heavier elements, such as carbon and oxygen. However, elements heavier than helium, such as iron and nickel, require even higher temperatures and densities to be produced, which can only be found in the cores of supernovae. Therefore, the big bang alone did not produce a significant proportion of elements heavier than helium.

to know more about compounds-

https://brainly.com/question/12166462

#SPJ4

Ionic bonds are formed between a metal and non-metal  by losing electron from the metal. Daily life examples of ionic compounds are table salt, baking soda, Epsom salt etc.

Ionic compounds are inorganic compounds with strong ionic bonds formed between a metal and non-metal.

When an electropositive atom donates its electron into an electronegative element, there creates an intermolecular force of attraction. The bonded electron are pulled towards the electronegative element.

We have everyday examples of ionic compounds such as table salt, Epsom salt, baking soda or sodium carbonate etc. Table salt that is sodium chloride or NaCl we use it every day is an ionic compound.

The metal sodium donates it electron to chlorine creates the ionic bond in NaCl. Similarly in sodium carbonate and sodium bicarbonate, ionic bonds  are formed between sodium metal and carbon.

Therefore, we can find more compounds and models for ionic bonding in daily life such as salt, baking soda etc.

To find more about ionic bonding, refer the link below:

https://brainly.com/question/11527546

#SPJ1

Benzaldehyde was the limiting reagent in the reaction between benzaldehyde and KCN, resulting in the formation of benzoin.

In order to determine the limiting reagent, we compare the amount of each reactant used to the amount of product obtained. In this case, we are given that 24 mL of benzaldehyde and 1 g of KCN were used in the reaction, and the resulting yield of benzoin was 25 g.

To determine the limiting reagent, we need to calculate the amount of benzoin that would be formed if each reactant were completely consumed. Since the molar mass of benzaldehyde is approximately 106 g/mol and the molar mass of KCN is approximately 65 g/mol, we can calculate the theoretical yield of benzoin for each reactant.

For benzaldehyde:

24 mL of benzaldehyde is equivalent to approximately 24 g (assuming the density of benzaldehyde is close to 1 g/mL).

The theoretical yield of benzoin from 24 g of benzaldehyde would be (25 g/mol) x (24 g) / (106 g/mol) = 5.66 g.

For KCN:

The theoretical yield of benzoin from 1 g of KCN would be (25 g/mol) x (1 g) / (65 g/mol) = 0.385 g.

Comparing the theoretical yields, we can see that the amount of benzoin obtained (25 g) is closer to the theoretical yield calculated from benzaldehyde (5.66 g) than from KCN (0.385 g). Therefore, benzaldehyde is the limiting reagent in this reaction.

Learn more about benzaldehyde here

https://brainly.com/question/14724597

#SPJ11

cell membrane - phospholipd bilayer

pigmented - chloroplasts

chloroplasts - oval shaped with two membranes

rectangular or cubed - plant cell

nucleus - control centre

hope that's what you are looking for

Answer:

a1

The main difference between SPECT and PET scans is the type of radiotracers used. While SPECT scans measure gamma rays, the decay of the radiotracers used with PET scans produce small particles called positrons. A positron is a particle with roughly the same mass as an electron but oppositely charged.

Explanation:

a2

While imaging tests such as X-rays can show what the structures inside your body look like, a SPECT scan produces images that show how your organs work. For instance, a SPECT scan can show how blood flows to your heart or what areas of your brain are more active or less active.

a3

PET and SPECT have been extensively evaluated as diagnostic procedures for dementia. Substantial progress has been made in developing radioligands that bind to amyloid deposits in the brain, which should provide new opportunities for early diagnosis and treatment monitoring in Alzheimer's disease

a4

What are the disadvantages of spect as compared to pet?

However, SPECT has issues, including long scan times and low-resolution images prone to artifacts and attenuation. Some artifacts can easily be misidentified as perfusion defects. SPECT also does not provide a quantifiable estimate of the blood flow, whereas PET does, experts say.

A radical cation is initially produced when a high energy electron impacts molecule M in the ionisation chamber.

When a high energy electron collides with molecule "m" in an ionisation chamber, it can produce a number of species, including electrons, ions, and neutral species. The most common species, however, is an ion pair, which consists of a positively charged ion (cation) and a negatively charged electron (anion). This is because the impacting electron has a high energy and can knock an electron out of the molecule, leaving a positively charged ion (cation) behind. The produced ion pair is then detected and used to calculate the energy and intensity of the electron beam in the ionisation chamber. Ionisation chambers are devices that detect and measure ionising radiation. It generates charged particles, typically ion pairs, inside the chamber by using ionising radiation. The energy and intensity of the ionising radiation can then be calculated using these charged particles.

To know more about what happens inside an ionisation chamber, click here : https://brainly.com/question/17961146

#SPJ4

When the cold balloon filled with 2.30 L of helium is brought into the salt-conditioned car, the balloon is likely to shrink or decrease in size.

The volume of a gas is directly affected by temperature. When the cold balloon filled with helium is brought into a salt-conditioned car, the temperature inside the car is likely to be lower than the temperature outside. As a result, the temperature of the helium gas inside the balloon will decrease. According to Charles's Law, the volume of a gas decreases with a decrease in temperature, assuming constant pressure. Therefore, the helium gas inside the balloon will contract, causing the balloon to shrink or decrease in size.

Thus, the balloon will shrink or decrease in size when brought into the salt-conditioned car.

You can learn more about helium at

https://brainly.com/question/29392730

#SPJ11

Eugenol is a compound found in clove oil that has many medicinal and therapeutic properties. To extract eugenol from clove leaves, steam distillation is commonly used. In this process, water is heated to produce steam which is passed through the clove leaves.

The steam carrying the volatile oil compounds from the leaves is then collected and cooled to form an aqueous distillate.
To isolate eugenol from the aqueous distillate, the distillate is extracted with an organic solvent such as ether. Eugenol is then separated from the ether using a separating funnel. The ether is evaporated to leave behind pure eugenol.
The percentage of eugenol recovered from the clove leaf can be calculated using the formula:
% yield = (mass of eugenol recovered ÷ mass of clove leaves used) x 100
The yield of eugenol obtained depends on various factors such as the quality of the clove leaves, the extraction process, and the efficiency of the separation and purification methods. A higher percentage yield indicates a more efficient extraction and purification process.
In conclusion, eugenol can be extracted from clove leaves using steam distillation. The extracted eugenol can then be isolated and purified using organic solvents. The percentage yield of eugenol recovered from the clove leaves depends on various factors and can be calculated using the mass of eugenol recovered and the mass of clove leaves used.

learn more about compound here

https://brainly.com/question/12166462

#SPJ11

Answer:

B. Cations are always the same size as the atoms from which they form.

Explanation:

That's i read in the book

"Anions are larger in size than the atoms from which they form" is a true statement. Therefore, option (C) is correct.

A cation contains more protons than electrons in it, which give it a net positive charge. A cation can be formed by losing one or more electrons must be lost by atoms.

The charge on the ion will be equal to the number of electrons lost as indicated after the chemical symbol. For example, silver (Ag) has lost one electron to become Ag⁺. The size of the cation is always smaller than the atom from which it formed.

An anion contains more electrons than protons which gives it a net negative charge. An anion can be formed by gaining one or more electrons or typically pulled away from other atoms.

The charge of the anion will be equal to the number of electrons gained, which is indicated after the chemical symbol.  For example, chlorine (Cl) accepts one electron to become Cl⁻.

The size of an anion is greater than the atoms from which it formed as the number of electrons in the ion increases and effective nuclear charge decreases.

Learn more about anions and cations, here:

https://brainly.com/question/20435320

#SPJ2

Answer:

It's c

Explanation:

Because I've checked

Chromium acetate is diamagnetic because it does not have any unpaired electrons in its orbitals, which are required for magnetic behavior.

Diamagnetic materials are materials that are not attracted to magnetic fields, and they behave in a manner that is opposite to magnetic materials, known as paramagnetic materials.

Chromium acetate has a complete electron shell configuration with all electrons paired, which means that the electrons are paired in the orbitals, and there is no net magnetic moment.

As a result, chromium acetate does not exhibit any magnetic properties and is considered to be diamagnetic.

The diamagnetic behavior of chromium acetate can be explained by the principles of quantum mechanics and the orbital configuration of the atoms in the molecule.

Learn more about the diamagnetic nature , please visit the link given below;

https://brainly.com/question/29277857#

#SPJ11

An excellent example of such a solid solution is a metal hydride. A metal hydride is a solid solution of hydrogen in a metal. In this case, the metal serves as the solvent, while hydrogen is the solute.

Solid solutions refer to the mixture of two or more substances, where the solute is dispersed uniformly throughout the solvent. In most cases, solid solutions involve the mixing of solids or liquids, but it is also possible to have a solid solution in which the solute is a gas. The hydrogen atoms diffuse into the interstices of the metal's crystal lattice, forming a solid solution. The solid solution of hydrogen in a metal is used in a variety of applications, including hydrogen storage and fuel cells. The use of solid solutions provides a practical solution for the storage and transportation of gases such as hydrogen, which is highly flammable and difficult to store in its gaseous state.

To know more about solution visit:

https://brainly.com/question/30665317

#SPJ11

The volume of the gas = 9.133 L

Given

Kb = 6.3 x 10⁻⁵

2.5 L solution

pOH= 2.5

Required

Volume of gas

Solution

pOH = 2.5

\(\tt [OH^-]=10^{-2.5}=0.0032=3.2\times 10^{-3}\)

For weak base :

\(\tt [OH^-]=\sqrt{Kb.M}\\\\(3.2\times 10^{-3})^2=6.3\times 10^{-5}\times M\\\\M=0.163\)

mol = M x V

mol = 0.163 x 2.5 L

mol = 0.408

Use ideal gas law at STP(1 atm, 273 K) :

\(\tt V=\dfrac{nRT}{P}=\dfrac{0.408\times 0.082\times 273}{1}=9.133~L\)

KF makes up 1.669 gms of the mixture's mass. The total of all the atomic masses or mass numbers of the constituent elements in a compound or molecule constitutes this quantity.

Given;

Total weight of mixture \($(L i F+K F)=5.97 \mathrm{gms}$\)

Let, mass of KF in the mixture be xg m s.

\($\Longrightarrow$\) mass of L i F$ in mixture = (5.97 - x) gms.

Note:

Atomic weight of F=19 gms.

Atomic weight of L i=7gms.

Atomic weight of K=39 gms.

moles = mass  molecular weight

Thus, moles of K F=x / 58

and moles of LiF = (5.97 - x) / 26

F atoms make up 1 mole in 1 mole of KF. Likewise, there are 1 mol of F atoms in 1 mol of LiF. Thus,

\($& \text { moles of } \mathrm{F} \text { in } K F=\text { molesof } K F=x / 58--(1) \\\)

\($& \text { moles of } \mathrm{F} \text { in } L i F=\text { molesof } L i F=(5.97-x) / 26--(2)\)

From (1) \& (2), we get;

Total moles of Fluorine = (x / 58) + ((5.97 - x) / 26)

Hence, total weight of Fluorine in sample = moles ×  Atomic weight

=((x / 58)+((5.97-x) / 26)) ×  19 gms

=3.90 gms .-\text {--(given) }

Now, solving the equation for x, we get;

26x + (5.97 ×  58) - 58x = 3.9 × 58 ×  26 / 19

22x = 346.26-309.537

Therefore, x = 36.723 / 22

=1.669 gms

Thus, mass of KF in the mixture is 1.669 gms

To learn more about mixture's mass, refer to:

https://brainly.com/question/21334167

#SPJ4

Answer:

crystallisation

Explanation:

Hope this helps!

Crystallisation is the process used to produce solid crystals from a concentrated salt solution.

Crystallization can be defined as the solidification of a liquid substance into a highly structured solid whose atoms or molecules are placed in a well-defined three-dimensional crystal lattice.

The freezing process, also called crystallization, involves cooling salt water to form crystals of pure ice.

The ice crystals are separated from the unfrozen brine, rinsed to remove residual salt, and then melted to produce fresh water.

Thus, crystallisation is the process used to produce solid crystals from a concentrated salt solution.

Learn more about crystallisation here:

https://brainly.com/question/23122377

#SPJ2

Aluminum displaces the iron in a redox reaction as it has its protective layer of aluminum oxide because it is more reactive than iron.

A redox reaction is a reaction in which oxidation and reduction reaction occur simultaneously and to the same extent.

An oxidation reaction occurs when atoms of elements lose electrons resulting in an increase in the oxidation number of the element.

A\ occurs when atoms of elements gain electrons resulting in a decrease in the oxidation number of the element.

The redox reaction of the displacement of iron by aluminum to form a protective layer of aluminum oxide is given below:

Fe₂O₃ (aq) +  2 Al (s) ----> 2 Fe (s) + Al₂O₃

In the given redox reaction above, aluminum metal displaces iron from its oxide to form aluminum oxide. Iron (iii) ion is reduced to metallic iron while metallic aluminum is oxidized to aluminum (iii) ion.

Learn more about redox reactions at: https://brainly.com/question/26263317

#SPJ1

Answer:

4.similar properties

5.electrons are very reactive

Answer:

The five conditions of chemical change: color change, formation of a precipitate, formation of a gas, odor change, temperature change

Hope that helps

Answer:

D

Explanation:

31 / 2.8 = 11.0714286 L per mole of helium

3.5 / 4 = 0.875 moles

2.8 + 0.875 = 3.675 moles

11.0714286 x 3.675 = 40.6875 L

The characteristics and the type of molecular bond they describe:

1. Bonds found in Halite (between Na⁺ and Cl⁻): Ionic bond

2. Bonds found between Si and O in the Si-O tetrahedron: Covalent bond

3. Bonds inside the water molecule (between the H and O): Covalent bond

4. Bonds that exist between two water molecules: Hydrogen bond

5. Strongest bond type: Covalent bond

6. Weakest bond type: Van der Waals bond

7. Bonds that are used by water to dissolve salt: Ionic bond

The ionic bond is a type of molecular bond found in halite (between Na⁺ and Cl⁻). The Si-O tetrahedron is held together by a covalent bond. The bond inside the water molecule (between the H and O) is also a covalent bond. The hydrogen bond is the type of bond that exists between two water molecules. The covalent bond is the strongest bond type, while the van der Waals bond is the weakest bond type. Water uses the ionic bond to dissolve the salt.

Learn more about bonds: https://brainly.com/question/32306693

#SPJ11

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.

To learn more about the atom refer to the link;

https://brainly.com/question/1566330

#SPJ1

Answer:

Answer: C

Explanation:

Answer:

Different compounds can have the same empirical formula. For example, ethylene C 2 H 4 and propylene C 3 H 6 have the same empirical formula, CH 2. In the same manner, compounds can have the same molecular formula. For example, ethanol and dimethyl ether have the same molecular formula, C 2 H 6.

Explanation: