Oxygen gas is at a temperature of 145 K when it occupies a volume of
1.45 Liters. To what temperature should it be raised to occupy a volume of 6.50
Liters? Show your work. (Express your answer in Kelvin)

The reaction between 6.12g of NH₃ and 3.78g of O₂ will produce 9.71g of H₂O.

The balanced chemical equation for the reaction between NH₃ and O₂ to form H₂O is:

4 NH₃ + 5 O₂ → 4 NO + 6 H₂O

According to the balanced equation, 4 moles of NH₃ react with 5 moles of O₂ to produce 6 moles of H₂O. We need to determine the amount of H₂O produced when 6.12 g NH₃ reacts with 3.78 g O₂.

First, we need to convert the masses of NH₃ and O₂ to moles using their molar masses:

Number of moles of NH₃ = 6.12 g / 17.03 g/mol = 0.359 mol

Number of moles of O₂ = 3.78 g / 32.00 g/mol = 0.118 mol

Now, we can use the mole ratio between NH₃ and H₂O to determine the number of moles of H₂O produced:

0.359 mol NH₃ × (6 mol H₂O / 4 mol NH₃) = 0.539 mol H₂O

Finally, we can convert the number of moles of H₂O to grams:

Mass of H₂O = 0.539 mol × 18.02 g/mol = 9.71 g

Therefore, 9.71 grams of H₂O can be formed when 6.12 grams of NH₃ reacts with 3.78 grams of O₂.

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In the first distillation this week, Hexane from the original solvent makes a larger contribution to the vapor pressure of the mixture.

In between hexane and toluene, the hexane will have more vapor pressure contribution in the solution. The boiling point of hexane is much lower than toluene. Therefore, it will evaporate easily at low temperatures and start exerting pressure on the solution.

Hence between hexane and toluene, because of more vapor pressure of hexane and lower boiling point, it will easily evaporate and exerts pressure.

Therefore, from the original solvent, hexane makes a larger contribution to the vapor pressure of the mixture.

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Answer:

A, T, C y G, son las "letras" del código del ADN; representan los compuestos químicos adenina (A), timina (T), citosina (C) y guanina (G), respectivamente, que constituyen las bases de nucleótidos del ADN. ...El código genético es el conjunto de reglas que define cómo se traduce una secuencia de nucleótidos en el ARNm a una secuencia de aminoácidos en una proteína

Answer:

carbon atoms with the usual 6 neutrons have a mass number of 12 (6 protons + 6 neutrons = 12), so they are called carbon-12. Carbon atoms with 7 neutrons have an atomic mass of 13 (6 protons + 7 neutrons = 13). These atoms are the isotope called carbon-13.

an atom of carbon with six neutrons, carbon-12, has an atomic mass of 12 amu.

The volume of sulfur dioxide produced during the reaction is 0.0151 cubic meters.

Zinc sulfide is the primary mineral that exists in nature. The oxidation of zinc sulfide ore is a chemical reaction. Zinc sulfide is changed into zinc oxide and sulfur dioxide during the reaction. The conversion of zinc sulfide to zinc oxide and sulfur dioxide is caused by the burning of sulfur that is present in zinc sulfide ore. Sulfur dioxide is produced during the reaction. The mass of zinc sulfide in grams is given as 32.5 g.

We are required to calculate the volume of sulfur dioxide that is produced during the reaction. The balanced chemical equation for the reaction is: ZnS (s) + 3 O2(g) -> ZnO(s) + 2 SO2(g)The molar mass of ZnS is 97.47 g/mol. Number of moles of ZnS present in 32.5 g is:32.5/97.47 = 0.333 mol From the balanced chemical equation, it is clear that for every one mole of ZnS, 2 moles of SO2 are produced.

Number of moles of SO2 produced during the reaction is:2 x 0.333 = 0.666 mol The volume of any gas can be calculated using the ideal gas equation: PV = nRT, where P is the pressure in pascals, V is the volume in cubic meters, n is the number of moles of gas, R is the universal gas constant and T is the temperature in kelvin. R = 8.314 J K-1 mol-1The given temperature is 23°C = 296 K. The given pressure is 103.3 kPa = 103300 Pa. Substituting the given values into the ideal gas equation: V = (nRT)/P = (0.666 x 8.314 x 296) / 103300 = 0.0151 m3

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The correct answer is Oe. Thermal capacitance, with respect to a tank process, is defined as the product of the mass of the tank wall and the specific heat capacity of the material of the tank wall.

Thermal capacitance refers to the ability of a system or object to store thermal energy. In the context of a tank process, the tank wall plays a significant role in storing and releasing heat. The thermal capacitance of the tank is determined by the mass of the tank wall and the specific heat capacity of the material composing the tank wall.

The greater the mass of the tank wall and the higher the specific heat capacity of the material, the higher the thermal capacitance of the tank.

Thermal capacitance refers to the ability of a system or object to store thermal energy. In the case of a tank process, the thermal capacitance is determined by the tank wall's characteristics.

The tank wall acts as a barrier between the contents of the tank and the surrounding environment. When the tank is subjected to heating or cooling, the tank wall absorbs and stores thermal energy. This stored energy helps maintain the temperature of the tank's contents.

The thermal capacitance of the tank is calculated by multiplying the mass of the tank wall by the specific heat capacity of the material composing the tank wall. The mass represents the amount of material present in the tank wall, while the specific heat capacity indicates the amount of heat energy required to raise the temperature of the material.

By understanding the thermal capacitance of the tank, engineers can determine how much heat energy is needed to raise or lower the temperature of the tank's contents and how long it will take for the tank to reach a desired temperature. This knowledge is crucial for designing and optimizing tank processes in various industries, such as chemical processing, food production, and energy storage.

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Hot steam that issues from a pressure cooker expands and  condenses when it comes into contact with cooler air or surfaces.

Hot steam is the gaseous form of water that is produced when liquid water is heated to its boiling point. It is commonly generated in various settings, including industrial processes, power generation, and household activities such as cooking with a pressure cooker.

When steam is produced in a pressure cooker, it is under high pressure due to the sealed environment. As the steam is released from the pressure cooker, it expands rapidly, occupying a larger volume compared to its initial state within the pressure cooker. This expansion is due to the increased energy and pressure of the steam.

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hot steam that issues from a pressure cooker expands and?

Answer:

0.15

Explanation:

The equilibrium constant expression for the given reaction is:

Kc = ([C₂H₂][H₂]³)/[CH₄]²

Substituting the given equilibrium concentrations, we get:

Kc = [(0.035 M)(0.115 M)²]/(0.035 M)³

Simplifying, we get:

Kc = 0.15

Therefore, the value of Kc for the reaction is 0.15, rounded to 2 significant figures.

Answer:

Measurement is defined as the act of measuring or the size of something. An example of measurement means the use of a ruler to determine the length of a piece of paper. ... Extent, quality, or size as determined by measuring; dimension. A waist measurement of 32 inches.

Explanation:

The comparison o unknown quantity with known standard quantity is called measurement.

For Number 2)

THE ELEMENTS TEND TO FORM COMPOUNDS BECAUSE AOMS ARE UNSTABLE AND CAN SHARE ELECTRONS IN THIER OUTER ENERGY LEVELS .

AS WE KNOW, ATOMS OF AN ELEMENT BECOMES MORE STABLE BY LOSING , GAINING AND SHARING ELECTRONS.

Elements react with each other to complete their octet or duplet so as to become stavle in nature. For e.g. Carbon reacts with oxygen to form carbon dioxide. Carbon reacts with four molecules of hydrogen to form methane - CH4.

The hybridization of the carbon atoms in acetylene is sp.  Acetylene (C2H2) is a colorless and highly flammable gas that has a distinct odor.

It is made up of two carbon atoms linked by a triple bond and two hydrogen atoms. Acetylene is used as a fuel in oxy-acetylene welding and cutting, as well as in the production of a variety of chemicals.  Hybridization is a concept in chemistry that describes the mixing of atomic orbitals into new hybrid orbitals.

Hybrid orbitals are used to explain the bonding in molecules. Both carbon atoms in acetylene are sp. because they are bonded to two other atoms and have no lone pairs. The hybridization of the carbon atoms in acetylene is sp.

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1) To react with 0.460 mole of SO₂, 1.15 moles of C are needed.

2) When 2.0 moles of C reacts, 1.6 moles of CO are produced.

3) To produce 0.35 mole of CS₂, 0.70 moles of SO₂ are required.

4) When 2.4 moles of C reacts, 0.48 moles of CS₂ are produced.

1.

From the balanced equation, the stoichiometric ratio between C and SO₂ is 5:2. Therefore, to calculate the moles of C required, we can set up a proportion:

(5 moles C / 2 moles SO₂) = (x moles C / 0.460 moles SO₂)

Solving for x, we find:

x = (5/2) × 0.460 = 1.15 moles C

2.

From the balanced equation, the stoichiometric ratio between C and CO is 5:4. Therefore, to calculate the moles of CO produced, we can set up a proportion:

(5 moles C / 4 moles CO) = (2.0 moles C / x moles CO)

Solving for x, we find:

x = (4/5) × 2.0 = 1.6 moles CO

3.

From the balanced equation, the stoichiometric ratio between SO₂ and CS₂ is 2:1. Therefore, to calculate the moles of SO₂ required, we can set up a proportion:

(2 moles SO₂ / 1 mole CS₂) = (x moles SO₂ / 0.35 moles CS₂)

Solving for x, we find:

x = (2/1) × 0.35 = 0.70 moles SO₂

4.

From the balanced equation, the stoichiometric ratio between C and CS₂ is 5:1. Therefore, to calculate the moles of CS₂ produced, we can set up a proportion:

(5 moles C / 1 mole CS₂) = (2.4 moles C / x moles CS₂)

Solving for x, we find:

x = (1/5) × 2.4 = 0.48 moles CS₂

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The forward reaction in this case is formed in an exothermic reaction. Option A

The use of the term equilibrium has been found to be very much common in the field of science. We have to note that in chemistry, the point of equilibrium is the point where the rate of the forward reaction is equal to the rate of the reverse reaction.

Given the fact that when the temperature was raised the equilibrium was pushed to the left hand side and we had the dark brown gas formed, the implication is that the  forward reaction is exothermic.

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Answer:

A and C

Explanation:

Size of the particles

Thermodyanmic and kinetic factors

the reaction depends upon temprature and rest factors like light , humidity etc

Answer:

Explanation:

What are Solid State Reactions ?

Factors

Answer:

V = l * w * h

V = 150.00 mm x 1cm/10 mm x 10.00 cm x 0.95 m x 100 cm/1 m = 1.4 x 104 cm3 D = M/V

M = D * V = 19.3 g/cm^3 * 1.4 * 104 cm^3 = 2.7 x 10^5 g = 270000 grams

Answer:

Because after increasing of temperature kinetic energy of molecules increases and reaction speed increases in forward or reverse direction.

Explanation:

Meiosis is important because it ensures that all organisms produced via sexual reproduction contain the correct number of chromosomes. Meiosis also produces genetic variation by way of the process of recombination. HOPE it helps

Minerals are naturally occurring, inorganic solids with a defined chemical composition and regular internal crystal structure.

The definition of a mineral is a substance that meets five specific criteria: it must be naturally occurring, inorganic, solid, have a definite chemical composition, and possess a crystalline structure. The crystalline structure refers to the arrangement of atoms or ions in an orderly, repeating pattern that extends in all three spatial dimensions. This regular arrangement of atoms or ions gives minerals their characteristic geometric shapes and physical properties. The crystal structure of minerals can be determined using X-ray diffraction, and the study of minerals is important in a wide range of scientific fields, including geology, chemistry, and materials science.

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Explain to the kids that since there is essentially no —which is required for fire—if the bag contains only pure carbon dioxide, the splint would burn out right away.

H2 - Hydrogen Pure hydrogen gas will burst into flames when a burning splint is added to it, making a popping sound. Oxygen (O2) A smouldering splint will rekindle when exposed to a sample of pure oxygen gas.

The flame goes out as a result of carbon dioxide replacing the oxygen it requires to burn (the effect). A popping sound is produced when a flame is near hydrogen because of how the gas burns.

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According to the Arrhenius theory, bases are chemicals that release or generate hydroxide (OH-) ions when dissolved in water, whereas acids are substances that do the opposite when dissolved in an aqueous solution or water that is they release H+ ions.

The statement is False.

The outcomes of dissolving in water are the main focus of Arrhenius acids and bases. A substance is considered to be an acid if it produces hydronium ions when dissolved in water. If, on the other hand, hydroxide ions are generated, the substance is categorized as a base by Arrhenius.

Examples of Arrhenius acids are HCl, H2SO4, and HBr.

Examples of Arrhenius base are NaOH, KOH, and Mg(OH)2.

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Answer:

(CH3COO)2 + redP + Cl2 → ClCH2COOH + HCl

Explanation:

This is an example of halogenation of carboxylic acids at alpha carbon atom. In this reaction, red phosphorus and chlorine are treated with carboxylic acids having alpha hydrogen atom followed by hydrolysis to form alpha chloro carboxylic acid.

The approximate normal boiling point of 2-chloroheptane can be determined using a vapor pressure nomograph. Given that the boiling point of 2-chloroheptane is 46 °C at 19 mmHg, we can use the nomograph to estimate the boiling point at normal atmospheric pressure.

1. The vapor pressure nomograph is a graphical representation that relates the boiling point and vapor pressure of a substance at different pressures. To estimate the normal boiling point, we need to determine the vapor pressure at standard atmospheric pressure (760 mmHg) using the given data.

2. On the vapor pressure nomograph, locate the point representing 19 mmHg on the y-axis and draw a horizontal line to intersect with the diagonal line representing the normal boiling point. From this intersection, draw a vertical line down to the x-axis to determine the temperature corresponding to 19 mmHg.

3. By estimating the intersection point, we find that the temperature is approximately 46 °C at 19 mmHg. Since the normal boiling point is defined as the boiling point at atmospheric pressure (760 mmHg), we can approximate the normal boiling point of 2-chloroheptane to be around 46 °C.

4. It's important to note that the accuracy of this approximation depends on the precision and reliability of the vapor pressure nomograph used.

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Answer:

This atom is neutral as the number of electrons is equal to the number of protons

Answer:

It doesn't quite have a charge. The neutrons don't have a charge, the protons and electrons do. But, there are equal amounts of both, so the element Lithium is neutral.

Explanation:

Answer:I just want points

Explanation:because I need them for future questions

The total pressure that is exerted by the gases : 5.37 atm

Given

Partial pressure of the gas

Required

The total pressure

Solution

Dalton's law of partial pressures stated that the total pressure of a mixture of gases is equal to the sum of the partial pressures of the component gases  

Can be formulated:  

\(\tt P_t=P_1+P_2+P_3+...P_n\)

P₁=3 atm

P₂=1.8 atm

P₃=0.29 atm

P₄=0.18 atm

P₅=0.1 atm

P total :

Pt = 3 + 1.8 + 0.29 + 0.18 + 0.1

Pt = 5.37 atm

Answer:

D on EDG

Explanation:

Ch3oh Ch3oh substances is a liquid at room temperature.

A sample of substance is considered to be liquid if it takes on the shape of the container in which it is contained and develops a distinct surface when gravity is present. We now turn our focus to three distinctive qualities of liquids that directly relate to the type of intermolecular interactions: surface tension, capillary action, and. The term "liquid" is also used to refer to the state, or condition, of matter having this property. viscosity. Although a liquid has a predetermined volume, its shape is not fixed. Blood, oil, and water are a few examples of liquids. A state of matter known as a liquid has a defined volume but no set shape. To put it another way, a liquid assumes the shape of its container.

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Answer:

0.702 /s

Explanation:

Rate constant at \([298 \mathrm{~K}, \mathrm{~K}_{1}=3.46 \times 10^{-2} \mathrm{~s}^{-1}\)

Rate constant at \(350 \mathrm{~K}, \mathrm{~K}_{2}=?\)

\(T_{1}=298 \mathrm{~K}\)

\(T_{2}=350 \mathrm{~K}\)

Activation energy, \(\mathrm{Ea}=50.2 \times 10^{3} \mathrm{~J} / \mathrm{mol}\)

Use the following equation to calculate \(K_{2}$ at $350 \mathrm{~K}\)

Use the following equation to calculate \(K_{2}$ at $350 \mathrm{~K}\)

\(\ln \frac{\mathrm{K}_{2}}{\mathrm{~K}_{1}}=\frac{\mathrm{Ea}}{\mathrm{R}}\left[\frac{1}{\mathrm{~T}_{1}}-\frac{1}{\mathrm{~T}_{2}}\right]\)

Therefore,

 \(\ln \left(\frac{K_{2}}{3.46 \times 10^{-2} \mathrm{~s}^{-1}}\right) &=\frac{50.2 \times 10^{3} \mathrm{~J} / \mathrm{mol}}{8.314 \mathrm{JK}^{-1} \mathrm{~mole}^{-1}}\left[\frac{1}{298 \mathrm{~K}}-\frac{1}{350 \mathrm{~K}}\right]\)

\(\ln \left(\frac{K_{2}}{3.46 \times 10^{-2} \mathrm{~s}^{-1}}\right) &=\frac{50.2 \times 10^{3} \mathrm{~J} / \mathrm{mol}}{8.314 \mathrm{JK}^{-1} \mathrm{~mole}^{-1}}\left[\frac{52 \mathrm{~K}}{298 \mathrm{~K} \times 350 \mathrm{~K}}\right]\)

\(\frac{K_{2}}{3.46 \times 10^{-2} \mathrm{~s}^{-1}} &=\mathrm{e}^{3.01}\)

\(\frac{K_{2}}{3.46 \times 10^{-2} \mathrm{~s}^{-1}} &=20.3\)

\(K_{2} &=20.3 \times 3.46 \times 10^{-2} \mathrm{~s}^{-1}\)

\(&=0.702 \mathrm{~s}^{-1}\)

hence, the rate constant at \(350 \mathrm{~K} \) is 0.702\(\mathrm{~s}^{-1}\)

Gold is found in various ionic compounds, but one of the most well-known and commercially significant compounds is gold chloride, also known as auric chloride or gold(III) chloride.

The chemical formula for gold chloride is AuCl₃. Gold chloride is an ionic compound composed of gold cations (Au³⁺) and chloride anions (Cl-). It is a yellow-orange solid that is highly soluble in water. Gold chloride can be formed by reacting the gold metal with chlorine gas or by dissolving the gold metal in aqua regia, which is a mixture of concentrated nitric acid and hydrochloric acid.

Gold chloride has several uses and applications. It is commonly used in the field of nanotechnology for the synthesis of gold nanoparticles. These nanoparticles have unique optical, electronic, and catalytic properties, making them valuable in various fields such as medicine, electronics, and materials science.

In addition to gold chloride, gold can also form other ionic compounds with different anions, such as gold bromide (AuBr), gold iodide (AuI), gold sulfide (Au2S), and gold cyanide (AuCN). These compounds have their own unique properties and applications.

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