how many signals would you expect each of the following molecules to have in its 1h and 13c spectra?

The correct class of molecules about which molecules and examples are: Carbohydrates involve starch and monosaccharide. • Lipids - triglycerides and fatty acid particles • Protein - amino acids and lactate. Nucleic acids (DNA and nucleotides)

1. Carbohydrates:. Components: one or even more monosaccharides. Functions: regulates electricity for cell, power storage, and plant tissue support Examples include glucose, glycogen, starch, and cellulose.

2. Lipids: Elements: fatty acid, glycerine, fat molecule• Functions: power storage, cellular membranes components, as well as hormones

3. Proteins: Amino group, carboxylate, R group, and amino acid • Function: enzyme, systemic protein, transport, interaction, immunity, storage • Lactose, hair, tendons, muscles, haematocrit, signal proteins, monoclonal antibody, egg albumin, receptor protein

4. Nucleic acids: Components have included a phosphate group, a nitrogeneous base, ribose or deoxyribose, and a nucleotide. Functions: heredity

Example: code for proteins, DNA, RNA

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Thus, the obtained mass percent is 6.85%.

Given information: Ethylene glycol's mass is 3.2 g.

Water has a mass of 43.5 g.

Mass of solution equals mass of solute plus mass of solvent, which is equal to 3.2 + 43.5 = 46.7 g.

Ethylene glycol is a helpful industrial substance that can be found in a variety of consumer goods. Antifreeze, some stamp pad inks, ballpoint pens, solvents, paints, plastics, films, and cosmetics are a few examples. It may also serve as a delivery system..

If swallowed, it is poisonous. Ethylene glycol can be unintentionally ingested, consumed on purpose during a attempt, or used as an alcohol replacement (ethanol). The majority of ethylene glycol poisonings are brought on by antifreeze consumption.

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The volume of the gas is obtained as 8.2 L

What is the volume of the gas?

We know that we can be able to obtain the volume  of the gas by the use of the process that can be identified with the ideal gas equation. In the ideal gas equation, we know that we can be able to see the relationship between the pressure, volume, temperature and number of moles of the gas.

Now we have to state out the parameters that have to do with the gas and we have the following;

Volume of the gas V = ?

Temperature of the gas T = 250 K

Gas constant R = 0.0821L⋅atm/mol⋅K,

Pressure of the gas P = 2.5 atm

We then have the formula for the ideal gas as;

PV = nRT

P = pressure

V = volume

R = constant

at = Temperature

Then we have;

V = nRT/P

V = 1 *  0.082 *  250/2.5

V = 8.2 L

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Answer:

29.22 g NaCl

Explanation:

0.5 mol NaCl x (58.44 g NaCl / 1 mol NaCl)

= 29.22 g NaCl

There are no components in the list which are neither cofactors, or coenzymes.

The components as cofactors are  Ca2+, Urease,  CoQ, ascorbic acid, and Inorganic ion.  A cofactor is a non-protein matter or bimetallic particle that's needed for an enzyme's role as a catalyst. Cofactors may be thought-about "helper molecules" that assist in biochemical transformations.

The component as coenzymes is  NADP. Coenzymes ar organic compounds needed by several enzymes for chemical change activity. they're typically vitamins, or derivatives of vitamins. typically they'll act as catalysts within the absence of enzymes, however not thus effectively as in conjunction with an enzyme.

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The compound's empirical formula is C2H5F.

Using the molecular mass, which is the total of the atomic (molar) masses listed in the periodic table. m/n = M where n is the number of moles, m is the mass in grams (g), and M is the compound's molecular mass in grams/moles.

Typically, the empirical formula is used to only display the components of a molecule. When one wishes to quickly identify the elements they are working with, this is helpful. When you want to know how many atoms of each element are present in the molecule, the molecular formula is the most helpful.

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As an electron-withdrawing group, the nitro group reduces the electron density over the benzene ring. Haloarenes are more reactive to nucleophlic substitution when nitro groups are present in the ortho or para position.

A reactant known as a nucleophile provides an electron pair in order to create a covalent bond. Typically, a nucleophile has a negative charge or is neutral with one or two donateable electrons. Some examples include H2O, -OMe, or -OtBu. The species with a lot of electrons is a nucleophile overall.

A nucleophile is an atom or molecule that seeks the positive center of a chemical process, such as the atom's nucleus, since it has an accessible electron pair for bonding.

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The magnitude of the force acting on the sports car is 7500N.

Mass of the sportscar= 1500 kg

Acceleration of the sportscar= 5m/s^2

Net Force = Mass × Acceleration,

or F = m × a.

F= 1500 kg x 5m/s^2

F = 7500N.

According to the equation a = v/t, acceleration (a) is the product of the change in velocity (v) and the change in time (t). In terms of meters per second squared (m/s2), this enables you to calculate how quickly velocity varies.

p = m v . The equation shows that the relationship between momentum and an object's mass (m) and speed is linear (v). The larger an object's mass or velocity, the greater its momentum will be as a result.

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sucrose c12h22o11 which is commonly known as table sugar reacts in dulte acid solutions to form two simpler sugars glose and fructose both which have the formula c5h12o6. The reaction is first order with respect to c12h22o11 .

first-order reaction is a chemical process in which the rate at which it occurs is linear fashion dependent on the amount of an only reactant. In other phrases, a first-order reaction is a reaction in which the rates to monitor and influence as the concentration of just one of the reacting changes. A first-order reaction is a chemical process in which the rate of the reaction is entirely determined by the concentration of just one reactant. If the concentration of the initial reactant is trebled in such reactions, the response time is also doubled.

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In the process of respiration, 1 molecule of glucose requires 6 molecules of oxygen so 3 molecules of glucose will require 18 molecules of oxygen.

Respiration is defined as a metabolic process which takes place in cells of living organisms in order to obtain energy by taking oxygen and liberating carbon dioxide .

Energy is produced by break down of glucose by reacting it with 6 molecules of oxygen , so in order to breakdown 3 molecules of glucose 3×6/1= 18 molecules of oxygen are required.

Thus,18 molecules of oxygen are required to be breathed in in order to break down 3 glucose molecules.

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The climate was relatively warm.

The partial pressure of nitrogen in the resulting mixture, given 1.92 moles of N₂ and 2.69 moles of O₂ in a 60.41 L container is 78.96 KPa

The folloing data were obatined from the question:

From the above, we can obtain the partial pressure of nitrogen as illustrated below:

PV = nRT

60.41 × P = 1.92 × 8.314 × 298.83

Divide both sides by 60.41

P = (1.92 × 8.314 × 298.83) / 60.41

P = 78.96 KPa

Thus, we can conclude that the partial pressure of nitrogen is 78.96 KPa

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The U.S. Constitution is referred to as a living document that adapts to the times or present situations.

This is referred to as the basic principles and laws of a nation, state, or social group that determine the powers and duties of the government thereby preventing anarchy due to varying degrees of lawlessness.

The U.S. Constitution is also referred to as a living document because it adapts to the times due to the different amendments which are made to it as time goes on by officials such as lawmakers and is therefore the treason why it was chosen as the correct choice.

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In order to survive a a pieces, organism must pa on their genetic information from one generation to the next. This is known a genetic inheritance.. Organism can pa on their genetic information through Sexual reproduction

What is Genetic Inheritance?

Chromosomes are where genes are found. Genes, or their alleles, are found on each of the pairs of chromosomes, which are arranged in pairs.

Each chromosome ends up in a distinct cell as the cell divides in half. This occurs when sperm and egg cells develop during meiosis. Additionally, the genes divided in half. Alleles are what these are. One of each homologous chromosome is present in meiotic products, but not both. A cycle of cell divisions known as meiosis produces haploid cells, which have half as many chromosomes as diploid cells.

After the egg and sperm combine, the pairings are restored, but their genetic makeup has changed. As a result, one allele is inherited from the mother, while the other is inherited from the father.

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The types of chemical reactions described by the given chemical equations are as follows:

Cu (s) + 2 AgNO₃ (aq) ---> 2 Ag (s) + Cu(NO₃)₂ (aq) : Single replacement reaction

C₃H₈ + 5 O₂ ------> 3 CO₂ + 4 H₂O : Combustion reaction

3 N₂H₄ ---> 4 NH₃ + N₂ : decomposition reaction

4 Fe + 3 O₂ --> 2 Fe₂O₃ : Combination reaction

Mg(OH)₂ + 2 HCI --> MgCl₂ + 2 H₂O : neutralization reaction

Chemical reactions are reactions in which chemical changes occur in the substances resulting in the formation of new products.

There are several types of chemical reactions and they include the following:

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The order according to their respective osmotic pressures is C₆H₁₂O₆ < NaCl ≈ CH₃OH < MgCl₂.

What is osmotic pressure?

The pressure difference required to stop solvent from flowing through a semipermeable membrane is known as the osmotic pressure of a solution. The relationship between a solution's osmotic pressure and molar concentration of its solute particles

The formula for osmotic pressure (Π) is

Π = icRT

If T is constant,

Π = kic

C₆H₁₂O₆:

Π = k × 1 × 1 = k

MgCl₂:

Π = k × 3 × 1 = 3k

CH₃OH:

Π = k × 1 × 2 = 2k

NaCl:

Π = k  × 2 × 1 = 2k

Hence, The order of osmotic pressures is   C₆H₁₂O₆ < NaCl ≈ CH₃OH < MgCl₂

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Answer:

*spaghetti is a starch...it doesn't contain sugar, but honey contains sugar.

*Starch gives blue-black with iodine solution and dark blue in Benedict's reagent

*benedict solution : add benedict reagent to a test tube, then heat it (it will turn yellow-greenish) and let it cool down, if the colour changes to red, then sugar its present.

*A positive test with Benedict's reagent is shown by a color change from clear blue to brick-red

* conclusion : Honey is a carbohydrate, and spaghetti is a starch

Explanation:

Water is an example of a molecule which forms polar covalent bonds simply because of shared electrons pairs between hydrogen and oxygen atoms.

Water is a chemical compound which contains hydrogen and oxygen. The hydrogen is positive charged while the oxygen atom has a negative ion. Structurally, water has two different poles in its molecule; a positive side pole and a negative side pole.

That being said, one great quality, feature or characteristic which makes water a polar covalent molecule is by the virtue of unequal sharing of electrons.

So therefore, we can now confirm from the explanation given above that the polarity of water molecules makes it an excellent solvent for solutes.

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It would take 8.26 g of the reactant in grams.

NI3 breaks down into 2 NI3 (s) ——————————> N2 (g) (g) It is evident from the chemical equation that 761.4 g of iodine is obtained from = 789.4 g of NI3 when the following conditions are met:.......... +..................... 3 I2 (g) 2 mol..................................1 mol.........................................3 mol 2 x 394.7 g/mol..............28 g/mol....................................3 x 253.8 g/mol

As a result, the formula yields 7.97 g of iodine: = 789.4 g x 7.97 g / 761.4 of NI3 = 6291.518 / 761.4 of NI3 = 8.26 g of NI3; therefore, 8.26 g of the reactant would be needed.

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The light is passed through a sample solution some amount of light is absorbed and the rest is transmitted, according to Beer-lambert's law, in the spectrophotometer.

What is Spectrophotometer?

A spectrometer is a biological instrument that determines the concentration of a solute in a solution by measuring the amount of light that passes through a solution.

What is Beer-lambert's law?

The fundamental idea behind this is to determine the transmittance of light. The amount of light absorbed is inversely proportional to the amount of light transmitted, which is why this phenomenon is also known as the Beer-Lambert law since some light is absorbed and the remainder is transmitted when it passes through a sample solution.

Hence, the light is passed through a sample solution some amount of light is absorbed and the rest is transmitted.

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Answer: A person pushing a barrel is an example of applied force.

Explanation:

Based on the thermodynamic properties provided for water, the energy change when the temperature of 0.650 kg of water decreased from 101 °c to 51.0 °c is 1,609.66 kJ

What are thermodynamic properties of water?

Thermal characteristics of water include its density, freezing point, boiling point, latent heat of evaporation, melting point, and critical temperature, among others.

Here we calculate the boiling point of water is 100°C. So at 101°C, the water is steam. The specific heat first from 101 to 100 calculated as

E = mCΔT, where c for steam is 1.996 kJ/kg·°C

E₁ = (0.65 kg)(1.996 kJ/kg·°C)(101 - 100°C) = 1.2974 kJ

The latent heat when steam turns to liquid. The heat of vaporization of water is 2260 kJ/kg.

E₂ = mHvap = (0.65 kg)(2260 kJ/kg) = 1469 kJ

Thus solving  the energy to bring down the temperature to 51°C. The specific heat of liquid water is 4.187 kJ/kg·°C.

E₃ = (0.65 kg)(4.187 kJ/kg·°C)(100 - 51°C) = 139.36 kJ

Total energy = 1.2974 kJ+1469 kJ+139.36 kJ = 1,609.66 kJ

Therefore , the energy change when the temperature of 0.650 kg of water decreased from 101 °c to 51.0 °c is 1,609.66 kJ

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To make 1.00 kg of ²³⁹Pu if the reaction is complete when the product is 90% ²³⁹Pu the time period is 0.357 days.

Definition of power plants

Power station is defined as an industrial facility for the production of electricity, sometimes known as a power plant, generating station, or generating plant. In most of the cases, power plants are wired to form a grid.

Half life of ²³⁹Pu is 2.35 days

K = ln2/t₀.₅

  = ln 2/ 2.35

K = 0.294956/ day

N₀ = 1 kg

Nₐ = 0.91kg

K = 1/t ln N₀/ Nₐ

t = 1/K ln(N₀/Nₐ)

t = 0.357 days

Hence, the time period is 0.357 days.

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Therefore, the final temperature of the mixture is 43.15 C.

What is Temperature?

The term "temperature" refers to a measurement of an object's average kinetic energy, which is a category of energy linked to motion and used to describe how hot or cold an object is. But how hot and how frigid are they exactly? Hot and cool are not really scientific concepts.A physical scientist would check the metal's liquid state's temperature to find the answer. It is less confusing to use temperature instead of phrases like hot or cold.

Let the mixture's final temperature be toC (clearly, 95.00 oC > t oC > 25.00 oC).

Cold water sample's mass is equal to (volume times density) or (400 mL times 1.00 g/mL) = 400 g.

Water has a specific heat capacity of 4.184 J/g.

Heat gained by cold water equals mass times the water's specific heat capacity times the temperature change.

= (400g) x (t - 25) C x (4.184 J/g)

Hot water sample mass equals 140 g (140 mL x 1.00 g/mL).

Heat lost by hot water is calculated as (140 g) x (4.184 J/g. C) x (95 - t) C.

400 ( t - 25 ) = 140 ( 95 - t)

400 t - 10000 = 13300 - 140t

540t = 23300

t = 43.15

Therefore, the final temperature of the mixture is 43.15 C.

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Remove any contaminated clothing and quickly flush your skin with lots of water for at least 15 minutes if hydrochloric acid has touched your skin. Use water, antibacterial cream, and disinfectant soap in case of serious contact with the skin.

What is Contaminated?

A material, physical body, natural environment, workplace, or any other object can become contaminated when it has an ingredient, impurity, or another unfavourable element that taints corrupts, infects, renders unfit, or degrades it.

What is Hydrochloric acid?

An aqueous solution of hydrogen chloride is hydrochloric acid, often called muriatic acid. It is a colourless solution with an overpowering odour. A strong acid is how it is categorized. It is a part of the stomach acid in most animal species' digestive systems, including humans.

Hence, remove any contaminated clothing and quickly flush your skin with lots of water for at least 15 minutes if hydrochloric acid has touched your skin. Use water, antibacterial cream, and disinfectant soap in case of serious contact with the skin.

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A chemical reaction is a process in which one or more substances, also called reactants, are converted to one or more different substances, known as products.

What does the term chemical equation mean?

Hence, chemical reaction is the process.

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Speed is calculated as follows: speed = distance x time. Knowing the units for distance and time is necessary to determine the units for speed. Then distance = speed/time.

The distance traveled must be divided by the amount of time spent traveling in order to calculate speed. Divide the distance by the speed to calculate the time. Add the speed and the time together to get the distance. These equations can be seen as s=d/t when speed, distance, and time are all given.

The distance formula, d = st, or distance equals speed times time, can be used to calculate distance. Speed and rate are comparable because they both denote a certain amount of travel per unit of time, such as miles per hour or kilometers per hour. If speed s is equal to rate r, then r = s = d/t.

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The mass of oxygen, carbon dioxide, and sulfur dioxide generated from the reaction of black powder and saltpeter is:

The percentage by mass of the constituents of black powder is as follows:

KNO₃ = 75%

S = 10%

C = 15%

The mass of oxygen, carbon dioxide, and sulfur dioxide generated is calculated from the given percentages by mass as follows:

For SO₂; 1 mole S produces 1 mole SO₂:

mass of SO₂ = 280 g * 0.10 / 32.g S * 1 mol SO2 / 1 mol S) * 64.0 g

mass of SO₂ = 56.0 g SO2

mass of O₂ that reacted with S to produce SO₂ will be:

1 mole O₂ reacts with 1 mole S

mass of O₂ = 56.0 / 64 * 32.0

mass of O₂ = 28.0 g O₂

For CO₂; 1 mole C produces 1 mole CO₂

mass of CO₂ produced = 280 g * 0.15 / 12.g/mol x * 44.0 g/mol)

mass of CO₂ produced = 154 g CO₂

mass of O₂ that reacted with C to produce CO₂ will be:

1 mole O₂ reacts with 1 mole C

mass of O₂ = 154 / 44 * 32.0

mass of O₂ that reacted with C = 112.0 g O₂

The total mass of O₂ produced = 112 + 28

The total mass of O₂ produced = 140 g

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The age of fossil in years will be: 6765 years.

How to calculate age of fossil ?

A)Determine decimal fraction of C-14 remaining:

6.00 / 13.6 = 0.4411765

B) Determine how many half-lives have elapsed:

(1/2)n = 0.4411765

n = 1.18057

C)Determine length of time elapsed:

5730 yr x 1.18057 = 6765 yr

What is carbon-14?

Carbon-14, C-14, or radiocarbon, is a radioactive isotope of carbon with a nucleus containing six protons and eight neutrons. Its occurrence in organic matter is the basis of the radiocarbon dating method developed by Willard Libby and his colleagues for the dating of archaeological, geological, and hydrogeological samples.

Thus, the age of fossil in years will be: 6765 years.

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