CO, (9) +2NH_(9) - CO(NH,) (s) +H, O(1)
a. What is the maximum mass of urea, CO(NH), that can be manufactured from the reaction of 2.20 moles of CO2 with sufficient amount of ammonia.

Earth orbits the sun in a predictable pattern. The pattern of Earth's seasons depend on how much sunlight reaches different areas of Earth as the planet moves around around the sun. It is the earth sun model which shows that the earth circles the sun once a year. So revolution is responsible for it.

Earth has a nearly circular orbit around the sun, Earth also rotates around its north-south axis, an imaginary line passing through earth from pole to pole. Every place on the planet gets 12 hours of light and 12 hours of dark each day.

The temperature conditions on the planet change depending on the distance from the sun. There are colder temperatures at the poles and warmer temperature at the equator.

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The total gaseous mixture is 4.48 g.

The total gaseous mixture can be calculated using the ideal gas law: PV = nRT.

First, we need to convert the temperature to Kelvin: 27.0°C + 273.15 = 300.15 K.

Next, we can use the ideal gas law to calculate the number of moles of each gas:

For He: n = (1.12 atm) (2.00 L) / (0.08206 L·atm/mol·K) (300.15 K) = 0.0906 mol

For Ar: n = (4.53 g) / (39.95 g/mol) = 0.113 mol

The total number of moles of gas in the mixture is then:

n(total) = n(He) + n(Ar) = 0.0906 mol + 0.113 mol = 0.204 mol

Finally, we can calculate the total mass of the mixture:

m(total) = n(total) × M(avg)

where M(avg) is the average molar mass of the mixture, which can be calculated as:

M(avg) = (M(He) + M(Ar)) / 2 = (4.003 g/mol + 39.95 g/mol) / 2 = 21.98 g/mol

Thus,

m(total) = 0.204 mol × 21.98 g/mol = 4.48 g

Therefore, The total weight of the gaseous mixture is 4.48 g.

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The number of moles is 0.001734 moles

The Ideal gas law is the equation of state of a hypothetical ideal gas. It is a good approximation to the behaviour of many gases under many conditions, although it has several limitations. The ideal gas equation can be written as

                                    PV = nRT

where,

P = Pressure

V = Volume

T = Temperature

n = number of moles

Given,

Volume = 3.4L

Pressure = 1.2 atm

Temperature = 283K

PV = nRT

1.2 × 3.4 = n × 8.314 × 283

n = 0.001734 moles

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Answer:

There are 4.52 moles of oxygen in 2.71 x 10^25 molecules of carbon dioxide (CO2).

Explanation:

The number of moles in 100g of Sulphur is 3.13 moles.

The number of moles in a substance can be calculated by dividing the mass of the substance by its molar mass as follows:

moles = mass ÷ molar mass

According to this question, there are 100g of Sulphur. Sulphur has an atomic mass of 32g/mol. The moles of this element can be calculated as follows;

moles = 100g ÷ 32g/mol

moles = 3.13moles

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Answer: When you add small quantities of an acid or alkali (base) to it, its pH does not change significantly. In other words, the buffer solution stops the acid and base from neutralizing each other.

Answer:

 the result is a decrease in the amount of conjugate base present and an increase in the amount of the weak acid.

Explanation:

The increase in deforestation can have a significant impact on the atmosphere in the future, mainly by reducing the number of trees that absorb carbon dioxide during photosynthesis.

Trees take in carbon dioxide and release oxygen as a byproduct, reducing the amount of carbon dioxide in the atmosphere. However, when trees are cut down, the carbon they have stored is released back into the atmosphere, contributing to increased levels of greenhouse gases.

The increase in greenhouse gases can lead to global warming and climate change, which can have a range of negative effects on the environment and human health, such as rising sea levels, increased frequency and severity of natural disasters, and more intense heat waves. Additionally, deforestation can lead to soil erosion, loss of biodiversity, and disruption of local ecosystems.

It is important to find ways to reduce deforestation and promote sustainable land use practices to mitigate the potential impacts on the atmosphere and the environment as a whole.

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The partial pressure of a component gas in a mixture is the pressure that gas would exert if present alone in the vessel at the same temperature as that of the mixture. Here the partial pressure of CO is

The pressure exerted by a mixture of two or more non-reacting gases enclosed in a definite volume is equal to the sum of the partial pressures of the component gases. This is sated by Dalton.

Here partial pressure is:

partial pressure = Mole fraction × Total pressure

Mole fraction of CO = Number of moles of CO / Total moles

n(CO) = 0.220 / 1.21 = 0.181 moles

partial pressure = 2.95 × 0.181  = 0.533 atm

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Total, 127.8 moles of the steam (water vapor) will be produced.

Iron(III) nitrate nonahydrate, or Fe(NO₃)₃·9H₂O, is a compound that contains iron (III) cations (Fe³⁺) and nitrate anions (NO₃⁻) combined with nine water molecules (H₂O) per formula unit. The nine water molecules are referred to as "nonahydrate," which indicates that there are nine water molecules associated with each formula unit of Fe(NO₃)₃. This compound is also commonly known as ferric nitrate nonahydrate.

Balanced equation for the given reaction is;

Fe(NO₃)₃·9H₂O(s) → Fe(NO₃)₃(s) + 9H₂O(g)

According to the equation, one mole of Fe(NO₃)₃·9H₂O produces 9 moles of water vapor (H₂O) when it undergoes the reaction. Therefore, if there are initially 14.2 moles of Fe(NO₃)₃·9H₂O, the number of moles of water vapor (H₂O) produced will be;

14.2 moles of Fe(NO₃)₃·9H₂O × 9 moles of H₂O per 1 mole of Fe(NO₃)₃·9H₂O = 127.8 moles of H₂O

Therefore, 127.8 moles of water vapor will be produced.

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It took 14 years between the first man on the Moon and the first US woman in space.

The use of astronomy and space technology to explore outer space is known as space exploration. While astronomers use telescopes to explore space, physical exploration is carried out by both uncrewed robotic space probes and human spaceflight.

Understanding gravity, the magnetosphere, the atmosphere, fluid dynamics, and the geological evolution of other planets, for example, has come from studying the solar system.

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The grams of pigment needed is 9.20 grams

The grams of water needed is 0.199 grams.

The final molarity of the binder in the paint mixture is 20.04 M.

The masses of substances required are reived from the mole ratios given.

The grams of pigment needed:

mole ratios of CaCO3 and Cr2O3 is 1 : 1.52

Using the conversion factors:

molar mass of CaCO3 = 100.1 g

molar mass of Cr2O3 = 151.99 g

grams of pigment needed = (0.400 g CaCO3 x 1 mol CaCO3/100.1 g CaCO3) x (1.52 mol Cr2O3/1 mol CaCO3) x (151.99 g Cr2O3/1 mol Cr2O3) grams of pigment needed = 9.20 g Cr2O3

the grams of water needed:

mole ratio of CaCO3 and H2O is 1 : 27.5

molar mass of H2O = 18.0 g

the grams of water needed = 0.400 g CaCO3 x (1 mol CaCO3/100.1 g CaCO3) x (27.5 mol H2O/1 mol CaCO3) x (18.0 g H2O/1 mol H2O)

the grams of water needed = 0.199 g H2O

From the density of water, the volume of water needed is 0.199 mL of water.

Molarity = moles of solute/volume of solution in liters

Volume of solution = 0.000199 L

Number of moles of CaCO3 = 0.400/100.1 g

Number of moles of CaCO3 = 0.003998 mol

Molarity = 0.003998/0.000199

Molarity = 20.04 M

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Answer:

You can make 2.29 L of 3.4 M isopropanol solution with 78 g of isopropanol.

Explanation:

They maximise the distance between valence electrons to reduce the repulsion between them, which is option an in the correct response. This is so because the idea behind electron-pair geometries is to reduce valence electron repulsion.

By increasing the distance between them, which decreases the repelling power of the interactions between electrons, this is accomplished.

Because they reduce electron repulsion and enable molecules to adopt their most stable form, electron-pair geometries are used to anticipate the structure of molecules.

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Answer:

The pressure would be 1.65 atmospheres.

Answer:

The answer is c. ( mutualistic ).

Explanation:

The relationship between cotton plants and wasps is an example of mutualism. The cotton plants provide a food source in the form of nectar for the wasps, and in return, the wasps serve as pollinators for the cotton plants, which helps the plants reproduce. This is a mutually beneficial relationship, as both species benefit from the interaction. Therefore, the answer is (c) mutualistic.

If this helps, please mark my answer as brainliest so I can get better rank:) thank you

Answer:The two kinds of trace fossils mentioned in the options are:

tracks

burrowsTracks and burrows are both examples of trace fossils, which are fossils thatprovide evidence of an organism's activity, rather than the organism itself.Tracks are impressions left by an organism's feet or other body parts as itmoved across soft sediment, while burrows are tunnels or other structurescreated by an organism as it burrowed into the sediment. Both types of tracefossils can provide valuable information about an organism's behavior, habitat, and interactions with other organisms.

13.71g is the mass of carbon dioxide that should be produced in the reaction between 3.74g of carbon and excess oxygen. 83% is the percent yield.

Percent yield in chemistry is the percentage of the product's weight to its theoretical yield. In order to quantify the outcome in percent, we divide the experimental yield with the theoretical yield then multiply the result by 100. Chemists employ an equation called percent yield after a reaction to determine how much material they should have theoretically extracted against how much they actually acquired.

C+ O[tex]_2[/tex] → CO[tex]_2[/tex]

moles of carbon =  3.74/ 12=0.31moles

mass of CO[tex]_2[/tex] =0.31×44=13.71g

% yield =  (11.34/13.71)×  100=83%

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The acidity or alkalinity of a solution depends on the hydronium ion and hydroxide ion concentration. The pH scale is introduced by the scientist Sorensen. The pH of the solution is -1.90.

The pH of a solution is defined as the negative logarithm to the base 10 of the value of the hydronium ion concentration in moles per litre. The pH of the solution is given as:

pH = -log [H₃O⁺]

Dissociation of HCl is:

HCl + H₂O → H₃O⁺ + Cl⁻

Kₐ = [H₃O⁺][Cl⁻] / [HCl]

1.3 × 10⁶ = x × x / 0.00501

x² = 0.00501 × 1.3 × 10⁶ = 6513

x = √6513 = 80.7 M

HClO₂ + H₂O → H₃O⁺ + ClO⁻

Kₐ = [H₃O⁺][ClO⁻] / [HClO₂]

1.1×10⁻² = x² / 0.0378

x² = 0.0378 × 1.1×10⁻² = 0. 00041

x = 0.020 M

Thus the total concentration now is :

x = [H₃O⁺] = 0.020 +  80.7 = 80.72 M

pH = -log [H₃O⁺]

-log[80.72 ] = -1.90

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The reaction that is shown by the option D is a balanced reaction equation.

We can say that a reaction equation as we have it balanced number of each of the atoms that we have on the left hand side of the reaction equation is the same as the number of the atoms of the elements that we have on the right hand side of the reaction equation.

A reaction equation is a representation of a chemical reaction using chemical formulas and symbols. It shows the reactants on the left-hand side and the products on the right-hand side of the equation, separated by an arrow.

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Answer:

Physical and chemical methods can be used to monitor the rate of a chemical reaction. Physical methods measure changes in properties like temperature, pressure, or volume. Chemical methods track reactant consumption or product formation using techniques like titration or spectrophotometry. The choice of method depends on the reaction being studied, and scientists use these methods to gain insight into reaction kinetics and optimize conditions for better efficiency and selectivity.

6.72L is the volume occupied by 0.3 mole of hydrogen chloride. A measurement of three-dimensional space is volume.

A measurement of three-dimensional space is volume. It is frequently expressed quantitatively using SI-derived units, like the cubic foot and litre, or different imperial or US-standard units, including the gallon, quart and cubic inch. Volume and length (cubed) have a symbiotic relationship. A container's capacity is typically thought of as being represented by its volume.

Volume = 0.3×22.4

            =6.72L

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The m/z that can be seen in propan - 1 ol but not propan - 2 ol is m/z = 15

The distribution of ions produced by a sample in a mass spectrometer is depicted graphically as the mass spectrum.  A sample is ionized in a mass spectrometer, where the resultant ions are sorted according to their m/z ratio.

Each peak in the mass spectrum corresponds to a certain m/z ratio and represents one of the several ions that the sample produced. Thus the propan - 1 ol has the m/z = 15

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The IUPAC name of the compound is 3-chloro-4-ethyl-2,4-dimethyloctane

The naming of compound follows the IUPAC principles. This is illustrated below:

Thus, the IUPAC name for the compound is: 3-chloro-4-ethyl-2,4-dimethyloctane

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Answer:

By combining hydrogen and air in the presence of a catalyst, a fuel cell generates electricity to drive an electric motor, with water vapor as the only by-product. So, compared to a battery, a fuel cell is an energy converter rather than a storage device.

Explanation:

The value of ΔG°rxn is - 6979 J/mol, and the reaction is spontaneous.

The change in Gibbs free energy (ΔG°rxn) for a reaction can be calculated using the equation;

ΔG°rxn = -RT ln(K)

where; R = gas constant = 8.314 J/mol.K

T = temperature in Kelvin (K)

K = equilibrium constant for the reaction

Given;

K = 17.23

T = 371 K

R = 8.314 J/mol.K

Plugging in the given values into the equation;

ΔG°rxn = - (8.314 J/mol.K) × (371 K) * ln(17.23)

Using a calculator, we can calculate the natural logarithm of 17.23:

ln(17.23) ≈ 2.848

Plugging this value back into the equation;

ΔG°rxn = - (8.314 J/mol.K) × (371 K) × 2.848

ΔG°rxn ≈ - 6979 J/mol

The negative value of ΔG°rxn indicates that the reaction is spontaneous, as ΔG°rxn < 0.

Therefore, the reaction will occur spontaneously in the forward direction at 371 K when the equilibrium constant (K) is 17.23.

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The concentration of A after 38.02 s is 0.057 M.

The concentration of A after 38.02 s is calculated by using rate equation as follows;

[A] = [A]₀e^(-kt)

where;

The concentration of A after 38.02 s is calculated as;

[A] = [A]₀e^(-kt)

   = 0.95 M e^(-0.0739 s⁻¹  x 38.02 s)

   = 0.057 M

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