Using the dimensional Analysis
In the Above questions to convert 14,612 mL to DAL which of the following portrays to correct set up

The relative rate of diffusion is faster of methane than methane and particles move from high concentration to low concentration.

Diffusion is the spreading of particle from a region of higher concentration to a region of lower concentration.

Diffusion is the process by which molecules move in the presence of a concentration gradient. All living things go through this crucial phase. The movement of chemicals into and out of cells is aided by diffusion.

The molecular weight of methane is lower than the molecular weight of ethane so lower the molecular weight easier will be its diffusion. So, methane will diffuse more easily than ethane.

So, According to the question, row B describes diffusion and the relative  rates of diffusion of methane and ethane.

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Your question is incomplete. Please find the missing image below.

Concentration of hydrogen ions remaining in the final solution is [tex].673 M[/tex]

In original solution we have 1.450M of HCl

1.450 M means 1.450 moles of HCl in 1 liter of water

Therefore, number of moles of HCl in 500ml of water will be

                                                           =  [tex]1.450*0.5[/tex] moles

                                                           =  0.725 moles of HCl

Reaction between HCl and Zn happens when zinc is added -

         [tex]Zn(s) + 2HCl[/tex]     →      [tex]ZnCl_{2} + H_{2}[/tex]

Therefore two moles of HCl is needed for 1 mole of zinc

Thus number of moles of HCl needed to react with 12.7g of Zinc will be

                                   =  [tex](12.7/ 65.38 moles of Zn )* (2moles of HCl/mole of Zn)[/tex]

                                   = .388 Moles

So moles of HCl left  = [tex]0.725 - .3888[/tex]

                                  =  0.3365 moles

In 1 Mole of HCl there is 1 mole of H because

                                    [tex]HCl[/tex]  →  [tex]H^{+} + Cl^{-}[/tex]

Therefore in 0.3365 mole HCl there will be 0.3365 moles of H

Thus final concentration of H ions in final solution is =

                                      =  [tex]0.3365mole/0.5 L[/tex]

                                      = 0.673M

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The final concentration of sulfuric acid in terms of molarity is 0.08 M.

The molarity of a solution expresses the concentration in terms of the number of moles of solute per liter of solution. Since the volume of the solution increased, the molarity of the solution will change.

First, let us solve for the number of moles of sulfuric acid based on the initial concentration and volume. Volume must be converted to L in order for the units to have consistency.

number of moles = molarity*volume

number of moles = 0.40 M * 250 mL * ( 1 L/1000 mL)

number of moles = 0.10 moles

Then, let us solve for the new concentration by dividing the same number of moles with the new volume. The number of moles remains the same since there is no addition of solute.

final concentration in terms of molarity = number of moles / total volume

final concentration = 0.10 moles / [(250mL+1000mL)*(1L/1000mL)]

final concentration = 0.08 M

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Answer:

False

Explanation:

Hydrogen atoms contain 1 proton and have an atomic number of 1. Oxygen atoms contain 8 protons and have an atomic number of 8.

Rust is a flaky reddish brown layer that forms on metal. Rust is a Hydrated Iron (III) Oxide with the chemical formula Fe₂O₃ + H₂O.

Now, as per the question:

Mass of Iron = 51.85g

Mass of Oxygen = 22.22g

Mass of Water = 16.67g

Therefore,

Moles of Iron, Fe = [tex]\frac{ 51.85}{ 55.84}[/tex] mol

Moles of Oxygen, O =  [tex]\frac{22.22}{15.99 }[/tex] mol

Moles of Water, H₂O = [tex]\frac{16.67}{18.01}[/tex] mol

Simplest mole ratio:

Fe: O: H₂O ::   [tex]\frac{ 51.85}{ 55.84}[/tex] :   [tex]\frac{22.22}{15.99 }[/tex] :  [tex]\frac{16.67}{18.01}[/tex]

Fe: O: H₂O :: 0.92 : 1.38 : 0.92

Thus, the simplest mole ratio of Fe: O: H₂O is 0.92 : 1.38 : 0.92.

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Answer:

How to Convert Millimeters to Meters. To convert a millimeter measurement to a meter measurement, divide the length by the conversion ratio. The length in meters is equal to the millimeters divided by 1,000.

Explanation:

Combustion of propane is the exothermic reaction

Combustion reactions are reactions in which a substance reacts with an excess of air or oxygen to form products. the combustion of hydrocarbons in the presence of stoichiometric or excess levels of oxygen forms carbon dioxide and water and with the release of heat the molecular formula of propane is C₃H₈. one mole of propane needs five moles of oxygen for complete oxidation to form carbon dioxide and water.

The balanced equation for combustion of propane is:

C₃H₈(g) + 5O₂(g)→3CO₂(g)+4H₂O(g)

The products are 3 moles of CO₂ and 4 moles of H₂O for every mole of the alkane burnt completely. propane combust completely

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At constant temperature, the behavior of a sample of a real gas more closely approximates that of an ideal gas as its volume is increased because the (D) Average distance between molecules becomes greater.

An ideal gas is:

1) made up of molecules which are in constant random motion in straight lines.

2) all collisions are perfectly elastic, there is no loss of kinetic energy during the collision.

3) follows ideal gas law: p·V = n·R·T.

4) the gas particles have negligible volume.

At low temperatures, volume of the gas is not negligible.

Real gases may be expected to deviate from Charles's law at high pressures.

Real gases may be expected to deviate from Charles's law near the liquefaction temperature.

Missing options:

(A) Collisions with the walls of the container become less frequent

(B) Average molecular speed decreases

(C) Molecules have expanded

(D) Average distance between molecules becomes greater

(E) Average molecular kinetic energy decreases

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Water molecules are made of 2 hydrogen and 1 oxygen atom. H2O.

It can be concluded that hydrogen atom have 2 hydrogen and 1 oxygen atom which are bounded together by covalent bond.

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Yes his graph is accurate.

Average kinetic energy- The kinetic energy of each particle in a sample of matter varies with temperature. Instead, a wide range of kinetic energies are visible in the particles. The majority of the particle's kinetic energies fall somewhere in the middle of the range. However, a few particles have kinetic energies that are significantly lower or greater than the norm.

The average kinetic energy of a sample of matter reduces as it continues to cool. One would anticipate that the particles will eventually come to a complete stop. The temperature at which particles should theoretically stop moving is absolute zero. Temperatures on the order of 1 x 10∧ -10 K have been reached in the lab, but absolute zero has never been. Since the Kelvin temperature scale is based on molecular motion, absolute zero is often referred to as 0K. The average kinetic energy of a substance's particles directly relates to the substance's Kelvin temperature. For instance, the average kinetic energy of the particles in a sample of hydrogen gas at 200K is twice that of the particles in the same sample at 100K.

Relation between Average kinetic energy and temperature-

The relationship between a substance's temperature and its average particle kinetic energy is direct. These particles' constant mass means they must move more swiftly as the temperature rises.

KE ∝ T

Hence, the graph is accurate.

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Your question is incomplete. Please find the missing image below.

The first wave appear after 320 seconds and after the arrival of P wave

We can use the formula TD = d × t / 100 km

TD = d × t / 100 km

= ( 4000 km × 8 s ) / 100 km

= 32000 km /s / 100 km

= 320 seconds

The first s-wave will arrived in 320 seconds after the arrival of the first p-wave

The earliest waves to reach a seismograph are known as P waves, or primary waves. The fastest seismic waves, known as P waves, can pass through solid, liquid, or gas. On the medium they travel through, they leave a trail of compressions and rarefactions

The second waves to arrive during an earthquake are called S waves, or secondary waves. They can only pass through solids and are substantially slower than P waves

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Answer:

CaCl2, because calcium loses two electrons and chlorine gains one electron.

Explanation:

What is produced is 2.24 moles of carbon dioxide.

We have to apply the stoichiometry of this reaction in trying to answer this question. Recall that what we have here is a decomposition reaction. The calcium carbonate is decomposed to give calcium oxide and carbon dioxide.

Number of moles of calcium carbonate =  224 g/100 g/mol = 2.24 moles

We can see that the reaction is 1:1 hence, the number of moles of carbon dioxide that would be produced in this reaction would also be 2.24 moles of carbon dioxide.

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The number of moles of carbon dioxide gas produced from the reaction is 2.24 mole

Mole = mass / molar mass

Mole of CaCO₃ = 224 / 100

Mole of CaCO₃ = 2.24 moles

CaCO₃ -> CaO + CO₂

From the balanced equation above,

1 mole of CaCO₃ decomposed to produce 1 mole of CO₂

From the balanced equation above,

1 mole of CaCO₃ decomposed to produce 1 mole of CO₂

Therefore,

2.24 moles of CaCO₃ will also decompose to produce 2.24 moles of CO₂

Thus, 2.24 moles of CO₂ were produced from the reaction

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The most likely organic compound to exist in the liquid state at room temperature is Propanal; option D

Organic compounds are the compound which are obtained from organic materials such as plants ad animals,

Organic compounds can also be obtained from the remains of dead plants and animals.

Generally, organic compounds are composed of the following elements:

Carbon, Oxygen, hydrogen, Nitrogen, Phosphorus, and Sulfur.

Organic compound include hydrocarbons which usually exist as gasses.

However, with increase in molecular weight as well as presence of other intermolecular forces such as hydrogen bonds, organic compounds can exists as solids and liquids.

Considering the give compounds, Propanal will most likely exist as liquid because of the presence of hydrogen bonding in the molecules.

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Answer:

Because HSO4- has sulfur, which has a greater electronegativity than carbon, the anion is more stable (Due to electron delocalization) and thus its acid is stronger.

Explanation:

Sulfuric acid is very reactive and dissolves most metals, it is a concentrated acid that oxidizes, dehydrates, or sulfonates most organic compounds, often causes charring.

Sulphuric acid is produced from sulphur. Sulphur dioxide is first obtained by the burning of the molten sulphur in presence of air.

Answer:

12.6

Explanation:

Number 4 -

1 kilogram = 1000 grams

0.79kg * 1000g = 790g

0.3kg * 1000g = 300g

790g - 300g = 490g

Number 5 -

24 hrs / 3 = 8

That means the lamb was fed 8 times in one day.

1 liter = 1000 milliliters

Using this conversion, we could do 290 * 8 to figure out how many milliliters it was fed in one day.

290 * 8 = 2320

2320 / 1000 = 2.32 liters fed to the lamb in one day

Working on my mental math this way<3

If this symbol is seen on a chemicals bottle, it means that it is an oxidizing chemical.

In a chemical laboratory there is usually a special cabinet for the storage of chemicals. The chemicals that are stored are often chemicals that are used to carry out one kind of experiment or the other in the laboratory.

However, symbols are used to symbolize the peculiarity of each particular chemical. Now we can see the symbol as shown in the image attached. If this symbol is seen on a chemicals bottle, it means that it is an oxidizing chemical.

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An incompletely dissociating solution would have weak conductivity. Ions that have completely broken free from their bonding conduct more effectively than those that are still connected.

Aquatic organisms and plants prefer a particular spectrum of salinities. Outside of this area, they will have negative effects and possibly even die. Others can endure both low and high salinities, whereas certain creatures can only endure low salinity.

In addition to its direct effects on aquatic life, salinity has various other important influences on the chemistry and density of water.

How is Conductivity measured?

The most popular way to quantify saltiness is in parts per thousand, or grams per liter.

A Siemen is a unit used to measure conductivity. It is also known by its smaller equivalents, the milli-Siemen and the micro-Siemen, which are each one millionth of a Siemen. The most popular type of conductivity is referred to as specific conductivity.

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The statement that describes the similarity and difference between sound and infrared waves is as follows: both carry energy through space, but sound waves are mechanical and infrared waves are electromagnetic (option A).

Sound waves are the longitudinal waves of pressure that is transmitted through any plastic material i.e. audible sound.

Also, infrared waves are electromagnetic radiation of a wavelength longer than visible light, but shorter than microwave radiation, having a wavelength between 700nm and 1mm.

Both sound and infrared waves carry energy, however, the difference between both waves is that sound waves are mechanical and infrared waves are electromagnetic.

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Based on the calculations, it would cost the architect $33,940.08 to buy the necessary gold.

Density can be defined as a ratio of mass to the volume of an object such as a baseball. Mathematically, the density of a baseball can be calculated by using this formula:

Density = M/V

Where:

First of all, we would determine the volume of gold that is required in cubic centimeters as follows:

Conversion factor:

12 inches = 1 foot

Volume = 100 × 12 × 28 × 12 × 5 × 10⁻⁶

Volume = 2.016 in³

In cubic centimeters, we have:

Volume = 2.016 × 2.54³

Volume = 33.04 cubic centimeters.

Next, we would determine the mass of gold required:

Mass = Density × Volume

Mass = 19.32 × 33.04

Mass = 638.33 grams.

Converting the mass in grams to troy ounces, we have:

Mass = 638.33/31.1035

Mass = 20.52 troy ounce

Now, we can determine the total cost of gold needed:

Total cost of gold = 20.52 × $1654

Total cost of gold = $33,940.08.

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Answer:

as we know that E= mc²

E= .oo1×(3×10⁸)²

E= .001×9×10¹⁶

we can right .001 =1×10‐³

E=1×10-³×9×10¹⁶

E=9×10¹³

ans is B 9×10¹³

9×10¹³J is the energy that is released if a sample loses 0.001 kg mass through radioactive decay. Therefore, the correct option is option B.

Energy, which is observable in the execution of labor as well as in the form of light and heat, is the quantitative quality that's also transferred to something like a body or to any physical system in physics. Energy can be transformed in form but cannot be created or destroyed, according to the rule of conservation of energy. The joule is the SI's (International System of Units) unit of measurement of energy (J).

A moving object's kinetic energy, an object's potential energy, an object's elastic energy, chemical energy linked to chemical reactions, electromagnetic radiation's radiant energy, and the internal energy of a thermodynamic system are examples of common kinds of energy.

E= mc²

E=0 .001×(3×10⁸)²

E=0.001×9×10¹⁶

E=9×10¹³J

Therefore, the correct option is option B.

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2.64×10⁻³ (0.00264) moles of sodium borohydride will be used.

m(NaBH₄) = 100 mg ÷ 1000 mg/g

m(NaBH₄) = 0.1 g; mass of sodium borohydride

M(NaBH₄) = 37.83 g/mol; molar mass of sodium borohydride

n(NaBH₄) = m(NaBH₄) ÷ M(NaBH₄)

n(NaBH₄) = 0.1 g ÷ 37.83 g/mol

n(NaBH₄) = 0.00264 mol; amount of sodium borohydride

Sodium borohydride is white solid and it is a reducing agent.

Sodium tetrahydridoborate is an inorganic compound with the formula NaBH₄.

Mass is a fundamental measure of the amount of matter in the object.

Kilogram (symbol: kg) is the base unit of mass in the International System of Units.

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Answer:A hypothesis is a tentative explanation that can be tested by further investigation. A theory is a well-supported explanation of observations. A scientific law is a statement that summarizes the relationship between variables. An experiment is a controlled method of testing a hypothesis.

Explanation:

Proteins have four structures primary, secondary,m tertiary, and quaternary. The primary structure of the protein has been known to have peptide bonds. Thus, option C is correct.

Peptide bonds are the chemical bonds that are involved in protein polymer formation by linking the amino acid chains. They are also called amide bonds that are present between the nitrogen and the carbonyl atom.

The primary structure of the proteins includes the amino linked by the peptide bonds that make them look like linear structures. The secondary structures have hydrogen bonds and the tertiary have ionic and hydrophilic hydrogen bonds.

Therefore, option C. the primary structure of the protein contains peptide bonds.

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Answer:

4.5 written in scientific notation is 4.5×100 4.5 × 10 0 .

The only exponent number that will produce 1 as the value of the number is 0.

Explanation:

Option A displays the accurate dimensional analysis for converting 14,612 mL to daL.

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