what is the amount in moles of nitrogen gas found in a 58.0-l compressed gas tank that has a pressure of 89.3 atm at 357 k?

Answer:

4 H2 + 1 O2 = 2 H2O

The equation related to reaction between Sulfur dioxide and oxygen to produce sulfur trioxide is 2SO\(_2\)(g) + O\(_2\)(g) \(\rightarrow\) 2SO\(_3\) (g).  SO\(_2\)  is limiting reagent.

The reactant that controls how much of the products are generated inside a chemical reaction is known as the limiting reagent. Since some of the other reactants remain that after limiting reagent has been used fully, it is occasionally discovered that they are in excess in the reactions. The theoretical yield is the most product that can theoretically be produced.

2SO\(_2\)(g) + O\(_2\)(g) \(\rightarrow\) 2SO\(_3\) (g)

moles of SO\(_2\) =20.0 g / 64.07

                      =0.312moles

moles of O\(_2\)= 15.6 g/32

                   =0.487moles

On dividing the moles by stoichiometry, out of  O\(_2\) and SO\(_2\), SO\(_2\)  is limiting reagent.

Therefore,  the equation related to reaction between Sulfur dioxide and oxygen to produce sulfur trioxide is 2SO\(_2\)(g) + O\(_2\)(g) \(\rightarrow\) 2SO\(_3\) (g).  SO\(_2\)  is limiting reagent.

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The classification of each description as an example of the primary, secondary, or higher-order structure of DNA is as follows:1. This structure, hydrogen bonds between complementary base pairs result in a double helix - Secondary structure, 2. This structure describes the base sequence G-T-CA-A-G - Primary structure, 3. In this structure, tightly coiling nucleosomes form chromosomes - Higher-order structure,4. In this structure, adenine forms hydrogen bonds with thymine - Secondary structure,  5. This structure describes the sequence of nucleotides - primary structure
6. In this structure, the double helix coils around proteins known as histones - Higher-order structure

The primary structure of DNA refers to the linear sequence of nucleotides that make up the DNA molecule. This includes the order of the four nitrogenous bases - adenine, guanine, cytosine, and thymine - along the sugar-phosphate backbone.

The secondary structure of DNA refers to the 3D structure of the DNA molecule, which is formed by the hydrogen bonding between complementary base pairs. The most common secondary structure of DNA is the double helix, where two strands of DNA wind around each other in a twisted ladder-like structure.

The higher-order structure of DNA refers to the folding and coiling of the DNA molecule into more complex structures. For example, nucleosomes are the basic unit of chromatin, where the DNA is wrapped around histone proteins to form a compact structure.

Chromosomes, on the other hand, are formed when the chromatin fiber is further condensed and coiled into a highly organized structure.

From the descriptions given, we can classify them as follows:

- Hydrogen bonds between complementary base pairs resulting in a double helix: Secondary structure

- Base sequence G-T-C-A-A-G: Primary structure

- Tightly coiling nucleosomes forming chromosomes: Higher-order structure

- Adenine forming hydrogen bonds with thymine: Secondary structure

- Sequence of nucleotides: Primary structure

- Double helix coiling around histones: Higher-order structure

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Considering the given acids in different beakers at the same pH of 3.00,

7.  All have the same hydrogen ion concentration.

The correct option is D

8. The solution that has the highest percent ionization is Beaker 1. The correct option is A.

The pH of a solution is the negative logarithm of the hydrogen ion concentration of the solution.

Since the acid solutions are all at the same pH, the hydrogen ion concentration of the solutions in the beaker is the same.

The percent ionization of acids is a measure of the number of hydrogen ions produced by 1 mole of the acid solution. Strong acids have a 1005 ionization.

Hence, HCl has the highest percent ionization of the acid solutions in the beakers,

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Answer: Lines in the spectrum were due to transitions in which an electron moved from a higher-energy orbit with a larger radius to a lower-energy orbit with smaller radius. ... Transitions from an excited state to a lower-energy state resulted in the emission of light with only a limited number of wavelengths.

Explanation:

Give a handwritten explanation and response. Estimate the expected melting temperature of cadmium (Cd), vanadium, and other elements based on the patterns you have found.

What does melting point mean?

The temperature at which a pure substance's solid and liquid states can coexist in equilibrium is known as the melting point. A solid's temperature will rise when heat is added to it until its melting point is reached.

How do melting and boiling points differ?

The melting point

The temperature that a quality of output into a liquid under normal air pressure is known as the melting point. The temperature at which a liquid's vapor pressure equals the pressure around it, turning the liquid into vapor (and vice versa).

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Answer:

I think its (B)

Explanation:

as when the air thins out at higher elevations, your lift decreases so at some point, the plane cant produce enough lift to overcome gravity.

Answer:

32

Explanation:

Molality is defined as the number of moles of solute per kilogram of solvent. It is represented by the symbol "m" and is calculated using the formula:
m = moles of solute / kilograms of solvent

To find the molality of this solution, we need to know the mass of the solvent and the amount of the solute in moles.

Molality is defined as the number of moles of solute per kilogram of solvent. It is represented by the symbol "m" and is calculated using the formula:

m = moles of solute / kilograms of solvent

In this case, we are given the mole fraction of the solute, which is 0.18. The mole fraction is the ratio of the number of moles of one component to the total number of moles in the solution. It is represented by the symbol "X" and is calculated using the formula:

X = moles of solute / (moles of solute + moles of solvent)

Rearranging the formula to solve for moles of solute gives us:

moles of solute = X * (moles of solute + moles of solvent)

Substituting the given mole fraction of 0.18 into the formula gives us:

moles of solute = 0.18 * (moles of solute + moles of solvent)

Without knowing the moles of solvent, we cannot solve for the moles of solute. Therefore, we cannot find the molality of this solution without additional information.

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The electronegativities of the period-3 elements are on the transparency. AI and P, Si and S are  period-3 elements. Therefore, option D and E are correct.

The propensity of an atom of a certain chemical element to draw shared electrons when forming a chemical bond is known as electronegativity and is denoted by the symbol. The atomic number and the separation of the valence electrons from the charged nucleus have an impact on an atom's electronegativity.

Chlorine has a 3.0 electronegativity, compared to sodium's 0.9. Because of the rather large differential of 2.1, sodium and chlorine combine to produce an ionic compound. With hydrogen's electronegativity being 2.1 and oxygen's being 3.5, there is a 1.4 discrepancy.

Thus, option D and E are correct.

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After valves are opened and enough time has passed for net movement of particles between containers to stop, pressure of gas in middle container will be closest to 3 atmospheres as pressure will be halved after opening valves.

Pressure is defined as the force applied on an object perpendicular to it's surface per unit area over which it is distributed.Gauge pressure is a pressure which is related with the ambient pressure.

There are various units by which pressure is expressed most of which are derived units which are obtained from unit of force divided by unit of area . The SI unit of pressure is pascal .

Pressure will be halved after opening valves as it will be bifurcated ,thus, 9/2=4.5 which is closest 3 atmospheres.

Thus,the pressure of gas in the middle container will be closest to 3 atmospheres.

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ξ = 0 reduces the Halpin–Tsai equation to the inverse rule of mixtures Equation 3.40, whereas a value of ξ = ∞ reduces it to the rule of mixtures Equation 3.27.

The Halpin-Tsai equation (Equation 3.63) is used to predict the effective elastic modulus of composite materials. When ξ = 0, the equation reduces to the inverse rule of mixtures Equation 3.40, which assumes that the load transfer between the matrix and fibers is perfect. In other words, the fibers do not slip or debond from the matrix and behave as if they are part of the matrix. On the other hand, when ξ = ∞, the equation reduces to the rule of mixtures Equation 3.27, which assumes that the fibers are independent and do not interact with the matrix. In this case, the effective modulus is simply the weighted average of the moduli of the matrix and fibers. The inverse rule of mixtures and the rule of mixtures represent two extremes of the behavior of composite materials. In reality, the behavior is somewhere between these two extremes, and the value of ξ is typically in the range of 0 to ∞. Theξ = 0 reduces the Halpin–Tsai equation to the inverse rule of mixtures Equation 3.40, whereas a value of ξ = ∞ reduces it to the rule of mixtures Equation 3.27. Halpin–Tsai equation provides a way to predict the effective modulus for intermediate values of ξ. The value of ξ depends on the properties of the matrix and fibers, as well as the interfacial properties between them.

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Answer:

BiAs

Explanation:

Answer:

b 1.3 m/s

Explanation:

newton's second law of motion

The formula of sodium hydrogen phosphate is Na₂HPO₄.

3.2 moles of Na₂HPO₄ contains 6.40 moles of Sodium atoms.

Two mole of sodium, one moles of hydrogen, one mole of phosphate, and four moles of oxygen make up one mole of sodium hydrogen phosphate, or Na₂HPO₄.

Given;

1 mole of Na₂HPO₄ contains 2 moles of Sodium  

3.2 moles of Na₂HPO₄ will contain =?

= 3.2 moles x 2  

= 6.40 moles  

Therefore;  

3.2 moles of Na₂HPO₄ contains 6.40 moles of Sodium atoms.

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Answer:

The answer is b

Explanation:

Hope it helps

b) electrons have a mass of 1 amu

electrons have a mass of 0 amu

Whether each transformation leads to an increase or decrease in entropy.

a - Br2(l) to Br2(g): This transformation leads to an increase in entropy because the transition from liquid to gas results in more disordered particles and increased freedom of movement.

b - I2(g) to I2(s): This transformation leads to a decrease in entropy as the transition from gas to solid results in a more ordered system and less freedom of movement.

c - Higher density S(a) to lower density S(b): This transformation leads to an increase in entropy as the change from a higher density state to a lower density state allows for greater freedom of movement and a more disordered system.

d - C (graphite) to C (diamond): This transformation leads to a decrease in entropy because diamond has a more ordered structure than graphite, resulting in less freedom of movement for the carbon atoms.

e - NaCl(s) to NaCl(aq): This transformation leads to an increase in entropy as the process of dissolving a solid into a solution results in more disordered particles and increased freedom of movement.

In summary:
a - Br2(l) to Br2(g): Increase in entropy
b - I2(g) to I2(s): Decrease in entropy
c - Higher density S(a) to lower density S(b): Increase in entropy
d - C (graphite) to C (diamond): Decrease in entropy
e - NaCl(s) to NaCl(aq): Increase in entropy

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Answer:

visible light spectrum

Explanation:

Answer:

Hi Lovelys!!

Answer down below!!

Explanation:

Answer: Plants need water for photosynthesis in order to make food. Water is needed more for cooling, to maintain body temperature and transport nutrients.​

Reason: Plants need water for photosynthesis. Water also helps move nutrients from the soil into the plant. Too little water can cause a plant to wilt or droop. Too much water can cause a plant's roots to rot. Plants are about 80-95% water and need water for multiple reasons as they grow including for photosynthesis, for cooling, and to transport minerals and nutrients from the soil and into the plant.

Hope this helps!! =3

Have a wonderful day, evening, or night!!

Answer:

177.3kg C₂₁H₄₄

Explanation:

Based on the chemical reaction:

C₂₁H₄₄ → 3C₂H₄ + C₁₅H₃₂

Where 1 mole of C₂₁H₄₄ produce 3 moles of ethene, C₂H₄.

To solve this question we need to determine the moles of ethene in 50.4kg. 1/3 these moles are the moles of C₂₁H₄₄ that must be added:

Moles Ethene -Molar mass: 28.05g/mol-

50.4kg = 50400g * (1mol / 28.05g) = 1796.8 moles of ethene

Moles C₂₁H₄₄:

1796.8 moles of ethene * (1 mol C₂₁H₄₄ / 3 mol C₂H₄) = 589.93 moles C₂₁H₄₄

Mass C₂₁H₄₄:

589.93 moles C₂₁H₄₄ * (296g / mol) = 177283g =

Answer:

0.18 moles

Explanation:

Applying,

PV = nRT................... Equation 1

Where P = pressure, V = volume, n = number of moles, R = molar gas constant, T = temperature.

make n the subject of the equation

n = PV/RT............... Equation 2

Given: V = 5.3 L, T = 22 °C = (22+272) K = 295 K, P = 632 mmHg = (0.00131579×632) = 0.8316 atm,  R = 0.083 L.atm/K.mol

Substitute these values into equation 2

n = (0.8316×5.3)/(0.083×295)

n = 0.18 moles

10.0 liter container containing 3.0 moles of an ideal gas at 5.00 atmospheres of pressure and at 37 C. 78 dalton will be the new pressure of the container if its volume is decreased to 4.00 liters while the temperature is increased to 100 C.

Atmospheric pressure, often known as barometric pressure, refers to the pressure present in Earth's atmosphere (after the barometer). 101,325 Pa (1,013.25 hPa), or 1013.25 millibars, 760 mm Hg, 29,9212 inches Hg, or 14.696 psi, is the definition of the standard atmosphere, or atm. One atmosphere, or one atm, is about similar to the average atmospheric pressure at sea level on Earth. The hydrostatic pressure that results from the weight of the air above the measuring point is typically a close approximation of atmospheric pressure. Atmospheric pressure decreases as height increases because there is less air mass at lower elevations. due to the thinness of the atmosphere in comparison to the Earth's radius. The Earth's gravitational acceleration, which is thought to be constant with regard to height, is largely to blame for this fall-off. The SI unit for pressure is the pascal, which is equal to 1 newton per square meter (1 N/m2). A column of air with a cross-sectional area of 1 square centimeter (cm2) has an average mass of about 1.03 kilogram and exerts a force or "weight" of about 10.1 newtons, translating to a pressure of 10.1 N/cm2 or 101 kN/m2 from mean sea level to the top of Earth's atmosphere (101 kilopascals, kPa). A column of air would weigh around 14.7 lbf and impose a pressure of 14.7 lbf/in with a cross-sectional area of 1 in2.

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Answer:

\({ \boxed{ \mathfrak{ \: answer : \: { \bf{v = f \lambda}} }}}\)

chemical potential energy, thermal energy, electrical energy, sound energy

Explanation:

the coal is chemical potential energy because it is just sitting there, the coal fueled power plant is thermal energy because it is using the heat from the coal to work the power plant, that is then turned into electrical energy, which then goes to the radio which displays sound energy

The bands not straight around since location is not a factor in measuring temperature. Temperature seems to be not the same as the power of a thermodynamic process.

Temperature is a unit used to describe hotness or coldness. It may be stated in terms of any number of arbitrary scales and shows the direction in which heat energy would naturally flow, i.e., from a hotter body to a region of lower temperature (one at a lower temperature).

Temperature seems to be not the same as the power of a thermodynamic process; for instance, an iceberg has a significantly larger total heat energy than a match, despite the fact that a match is burning at a substantially higher temperature.  The bands not straight around since location is not a factor in measuring temperature.

Therefore,  the bands not straight around since location is not a factor in measuring temperature.

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Answer: unequal

Explanation: Local winds are caused by unequal heating of Earth's surface within a small area. Local winds form only when large-scale winds are weak. A sea breeze is a local wind that blows from an ocean or a lake.

Answer:  Key Concept Global winds and local winds are produced by the uneven heating of Earth’s surface. What You Will Learn Uneven heating of Earth’s surface by the sun causes differences in air pressure that cause wind. Wind patterns can be global or local and are influenced by the rotation of Earth and by geography.

Explanation:

Answer:

a) Area of the telescope lens is \($1.076391014 \times 10^{-5} \mathrm{ft}^{2}$\)

b) Technician needs to clean the lens \($1.83 \times 10^{3} s$\).

Explanation:

a) The area of the lens is \($6.439 \times 10^{3} \mathrm{~mm}^{2}$\)

To convert it into \($f t^{2}$\)

\($1 \mathrm{~mm}=0.00328084 \mathrm{ft}$\)

\($1 \mathrm{~mm}^{2}=(0.00328084)^{2} \mathrm{ft}^{2}$\)

\($1 \mathrm{~mm}^{2}=1.076391014 \times 10^{-5} \mathrm{ft}^{2}$\)

So,

\($6.439 \times 10^{3} \mathrm{~mm}^{2}=6.439 \times 10^{3} * 1.076391014 \times 10^{-5} \mathrm{ft}^{2} .$\)

\($6.439 \times 10^{3} \mathrm{~mm}^{2}=6.93088174 \times 10^{-2} \mathrm{ft}^{2}$\)

b) Time required to polish a entire area of lens

\($=6.439 \times 10^{3} \mathrm{~mm}^{2} \times \frac{43.5 \mathrm{~s}}{1.53 \times 10^{2} \mathrm{~mm}^{2}}$\)

\($=1.83 \times 10^{3} \mathrm{~s}$\)

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