How many moles of H3PO4 form from 9 mol P4O10

Energy transfer from one region of the atmosphere to another is critical in meteorology because it affects the weather.

What is Meteorology?

Meteorology is the science of studying the atmosphere and its phenomena such as weather, climate, and air pollution. It is a branch of the atmospheric sciences and studies the physical processes that make up the atmosphere and how the atmosphere affects the Earth and its inhabitants.

The amount of heat needed to be supplied to the parcel is given by the equation:

Q = nRT∆V

Where n is the number of moles of air, R is the ideal gas constant, T is the temperature in Kelvin and ∆V is the change in volume.

Therefore, the amount of heat needed to be supplied to the parcel is given by:

Q = (1.00 mol)(8.314 J/molK)(300 K)(30.0 dm3 - 22.0 dm3)

Q = 4, 573.2 J.

This is important because it demonstrates the amount of energy that must be supplied in order to keep the parcel of air at a constant temperature as it expands. Without this energy, the temperature of the parcel would decrease as it expands, resulting in a change in its weather patterns.

Hence, the amount of heat needed is: Q = 4, 573.2 J.

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Soname's dearest wishes for the future are to become a successful leading lady and to continue to use her talents and passions to inspire and empower people.

She also hopes to continue to learn, grow, and make a positive impact on the world. Soname dreams of financial stability and security so that she can continue to provide for her family and be an example for her community. She wishes to continue to build a successful career in entertainment, both on and off screen, and to be an example of success for her peers.

Lastly, she wishes to use her voice and platform to advocate for social justice and to make a difference in the world. Soname has a strong desire to make a lasting impact and to leave a legacy that she can be proud of. She is determined to use her hard work and determination to make her dreams come true and to make the world a better place.

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Igneous rock  commonly often contains gas bubbles and the mineral(s) hornblende, muscovite, olivine, lucite, and/or plagioclase.

What are igneous rocks?

Igneous rocks are rocks that form when molten rock cools and solidifies, either below the Earth's surface or on its surface. They are the oldest type of rocks on the planet and are composed primarily of crystals. Examples of igneous rocks include basalt, gabbro, granite, obsidian, pumice, and scoria.

Igneous rocks form from cooling and crystallizing molten rock, or magma. As the magma cools, minerals crystallize out of the molten material, forming the igneous rock. Hornblende, muscovite, olivine, lucite, and/or plagioclase are all common minerals that form as the magma cools, due to their high melting points. Gas bubbles may also form as the magma cools, creating a "vesicular" texture.

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Whenever we need to find the purity of a combination of two metals, which is known as an alloy, we use the simple formula where we find the weight of the main compound in the numerator and the weight of the total alloy In the denominator. Multiplying this by hundred gives us the purity of the metal. This is extensively used to calculate the purity of silver and gold.

The relationship between the enthalpy (ΔH) and entropy (ΔS) of a reaction that is never spontaneous is -ΔH, +ΔS option - B is correct answer.

When a reaction occurs spontaneously, the system doesn't require any additional energy input because the change in free energy is negative.

When the enthalpy change is negative and the entropy change is positive, the reaction is always spontaneous.

The free energy change is always positive and the reaction is never spontaneous if the reaction is endothermic (H positive) and the entropy change S is negative (less disorder).

Although a spontaneous reaction may result in an increase or decrease in entropy or enthalpy, it will always result in a decrease in free energy, which is a negative G.

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A chloride of rhenium contains 63.6% rhenium.  the formula of this compound  is Re2Cl3.

The chemical trirhenium nonachloride has the formula ReCl3, which is occasionally also written as Re3Cl9. It is a hygroscopic solid that is dark red in color and insoluble in common solvents. The substance is significant in the development of inorganic chemistry since it was the first cluster compound to have metal-metal links. [1] It serves as the raw ingredient for the production of various rhenium complexes. Rhenium is an atomic number 75 chemical element with the symbol Re. It is a heavy, third-row transition metal in group 7 of the periodic table that is silvery-gray in color. Rhenium is one of the rarest elements in the Earth's crust, with an estimated average concentration of 1 part per billion (ppb).

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Option - a is correct answer, H₂SO₄ is a molecular compound that produces H⁺ ions when dissolved in water.

Molecule-shaped inorganic substances are known as molecular compounds. Examples include common compounds like water (H₂O) and carbon dioxide (CO₂). When compared to ionic compounds like sodium chloride, these compounds are very different (NaCl).

Molecules that have a formula that reflects the number of atoms actually bound together in the molecule make up a molecular compound. The bonds between the atoms are joined to form a distinct shape, which is determined by the bond lengths and angles.

Acid produces proton when there is water present.

H₂SO₄ + H₂O → H₃O⁺ + HSO₄⁻

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Answer:

White color

Explanation:

This compound when heated losses its water of crystallization and become anhydrous copper sulphate

HCl will be the limiting reactant for the above question

When HCl and Ca(OH)2 are mixed, they react to form water and calcium chloride (CaCl2) according to the following equation: HCl(aq) + Ca(OH)2(aq) -> CaCl2(aq) + 2H2O(l). To determine which species is the limiting reactant, we need to compare the amount of HCl and Ca(OH)2 present in the reaction.The number of moles of HCl present in the reaction is given by the equation n=CV, where n is the number of moles, C is the concentration of the solution and V is the volume. Hence  number of HCL moles is:

n = 3.00 M 6.00L = 18.0 moles The number of moles of Ca(OH)2 present in the reaction is given by the equation n=CV, where n is the number of moles, C is the concentration of the solution and V is the volume. So the number of moles of Ca(OH)2 is: n = 2.00 M 5.00L = 10.0 moles. The number of moles of HCl is greater than the number of moles of Ca(OH)2, so HCl will be the limiting reactant.

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Answer:

One problem that people may encounter when using a hot and cold compress pillow is that the pillow may not stay hot or cold for a long enough period of time. This can be frustrating for people who are using the pillow to alleviate muscle pain or reduce inflammation, as they may need to continually reheat or refreeze the pillow in order to maintain its therapeutic benefits. To solve this problem, people may need to find a pillow that is better at retaining heat or cold, or they may need to use additional heating or cooling elements (such as hot water bottles or ice packs) in conjunction with the pillow.

Explanation:

Answer:

Mg + Hso4 - Mgso4 + H

24g of magnesium- 120g of Mgso4

Xg. - 6g of Mgso4

Cross multiply

120x - 144

x = 144/120

x= 1.2g

One mole of Helium contains 6.02 × 10²³ atoms. Mass of one mole is 4 g. Then, He containing 5.6 × 10²⁶ atoms weighs 3720.9 g.

Any substance containing 6.02 × 10²³ atoms is called one mole of that substance. This number is called Avogadro number. Thus, one mole of every element contains Avogadro number of atoms.

Helium is second element in periodic table. Atomic mass of helium that is mass of one mole = 4 g

4 g contains 6.02 × 10²³ atoms. Then weight of He containing 5.6 × 10²⁶ atoms is calculated as follows:

no. of moles = 5.6 × 10²⁶/ 6.02 × 10²³ = 930.2

mass of 930.2 moles = 930.2 × 4 =3720.9 g

Therefore, the mass of He containing 5.6 × 10²⁶ atoms is 3720.9 g.

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The volume of methane is 69.15L.

Heat (Q) of methane =Heat(Q) of water

                        Q = mcΔt

water mass = volume(V) × pressure(P)

                    1L×1kg/L=1kg

298 K to 373k = 25°C to 100 °C

c water = 75.2J/mol K =4.2 J/g °C = 4200 J/kg °C

Heat of water (Q) = 1×4200 (100 -25)

Heat of water (Q) = 315000J

∴ Heat of methane = Heat of water = 315000 J

                         = 315 KJ

n (mol) methane = ΔH/Q

                890.4/315 = 2.83

According to the ideal gas law,

PV = nRT

Where;

            P = Pressure

            V = Volume

             n = amount of substance

             R = ideal gas constant

              T = temperature

    Now,  

             V = nRT/P

            V = 2.83 × 0.082 ×298/1

             V = 0.23206 ×298/1

             V = 69.15L

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The force of 9.8 N must be applied to a 1 kg puck to make it accelerate on a friction-free air table of 9.8 m/s²​.

Force is the influence that can change the state of the body of motion or rest. The S.I. unit of measurement of force can be written as Newton and force is a vector.

Force can change the direction as well as the speed. The force can be calculated from the mass (m) & acceleration.

F = ma

Given, the mass of the puck, m = 1 Kg

The acceleration  of the puck, a = 9.8 m/s²​

The force acting on the puck can be calculated as:

F = ma = 1 × 9.8

F = 9.8 N

Therefore, the force needed to apply on a puck is equal to 9.8 N.

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Left C would be neither linear and neither planar since, in accordance with the preceding definition, it has a tetrahedral form.

Since no links cross one another, graph A is planar. Because so many connections overlap, graph B is not plane. Additionally, graph B's linkages cannot be rearranged in a way that makes it planar.

A compound is said to be planar if every atom inside it is located on the same plane. - Take the organic compound, for example. When the carbon atoms of an organic molecule lay within a single plane, the complex is referred to as a planar compound.

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When a hydrogen atom is part of a molecular structure, it is always a terminal atom.

On the periodic table, hydrogen belongs to the group 1 element. Consequently, a hydrogen molecule contains two valence electrons. There are two identical atoms in the H2 molecule. As a result, any atom can be regarded as a centre atom. An atom attached to a central atom is referred to as a terminal atom if it is not H. Here are two illustrations of this differentiation. Add bonding electrons to the total number of electrons. The end of hydrogen will never come. The centre will often contain the least electronegative element. Since hydrogen can only have two electrons in its valence shell and hence can only make one bond, it can never be the centre atom.

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Ribose is an important sugar with a molar mass of 150.15 g/mol and an empirical formula of CH₂O . Its molecular formula is C₅H₁₀O₅

A molecular formula  is defined as the exact number of different atoms present in the molecule of a compound. On the other hand, an empirical formula is defined as the simplest whole number ratio of the different atoms present in a molecule of a compound.

Given here,

molar mass of ribose sugar = 150.15 g/mol

empirical formula = CH₂O

To find: molecular formula

empirical formula mass of ribose sugar

=  (12+ 1×2+ 16) g/mol

= 30 g/mol

molar mass/ empirical formula mass

= 150.15 gmol⁻¹ / 30  gmol⁻¹

=5.005

≈5

we know that

molecular formula

= molar mass/ empirical formula mass  × empirical formula

=5 ×CH₂O

= C₅H₁₀O₅

Thus, the molecular formula is C₅H₁₀O₅

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A quality of matter that is unrelated to a change in its chemical makeup is called a physical property. Density, color, hardness, melting and boiling points, and electrical conductivity.

A quality of matter that is unrelated to a change in its chemical makeup is called a physical property. Density, color, hardness, melting and boiling points and electrical conductivity are a few common examples of physical qualities.

A substance with a given mass and a certain volume in space is referred to as matter. Examples of matters are pens, pencils, toothbrushes, water, and milk, as well as vehicles like cars, buses, and bicycles. Therefore, the matter is divided into two categories: living and non-living.

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Physical properties are characteristics of matter that are independent of changes in its chemical composition. Electrical conductivity, hardness, melt and boiling points, and density.

Physical properties are characteristics of matter that are independent of changes in its chemical composition. Physical characteristics include things like density, color, durability, melting , boiling temperatures, and electrical conductivity, to name a few.

Matter is defined as a material having a certain mass and spatial volume. Pencils, pencils, toothbrushes, water, milk, as well as automobiles, buses, and bicycles, are examples of matters. 

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Phosphorus, which has the atomic number 15 and is located in period 3 and group 15 of the periodic table.

"A boy sits in a chair and the floor pushes the boy" is not an action-reaction pair according to Newton's third law of motion.

According to Newton's third law of motion, every action which occurs in nature has an equal as well as opposite reaction. If a particular object Z happens to exert a force on another object Y then the object Y will also exert an equal as well as opposite force on object Z.
For example, when an oar pushes the water, the water also pushes the oar; when a dog wags its tail, the tail also wags the dog and when a missile pushes gas out, the gas also pushes the missile forward. All these instances involve an action-reaction pair.

Hence, option d. "a boy sits in a chair, and the floor pushes the boy" is the correct option.

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Answer:

The gases produced escaped to the atmosphere.

There is no movement of heat. The Zeroth Law of Thermodynamics states that if two systems are in thermal equilibrium with a third system, then they are in thermal equilibrium with each other.

Thermodynamics is the study of energy and its transformations. It examines the relationships between heat, work, and other forms of energy. The fundamental laws of thermodynamics provide a framework for studying the behavior of systems, whether they are physical, chemical, or biological in nature. Thermodynamics helps us understand the behavior of gases, liquids, and solids and how they interact with each other. It also provides us with a way to analyze how energy is transferred and used in various processes.

In other words, no heat transfer takes place between two systems that are in thermal equilibrium.

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The Ideal Gas Law states that the volume of a gas is proportional to its temperature at constant pressure.

Pressure is a force that is applied to an object over an area. It is measured in units of force per unit area, such as Pascals (Pa). Pressure can be applied in a number of ways, such as by squeezing, pushing, or compressing. It can also be caused by the weight of an object, or the force of gravity. Pressure can be used to do work, such as moving an object or creating heat.

This means that if we double the temperature, we will double the volume. Therefore, if the temperature of the gas sample is raised from 200 K to 600 K, the volume of the gas sample will increase from 6.00 L to 12.00 L.

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False. A polypeptide will have a negative net charge at ph=0.

A peptide is a small, chemically bound chain of amino acids, usually between two and fifty amino acids (called peptide bonds). A polypeptide is a longer (51 or more amino acids) chain of connected amino acids. One or more polypeptides are used to create the proteins that are produced inside of cells.

Polypeptides. Proteins are created by joining several amino acids together to form polypeptides. The coupling of two or so more polypeptides results in the formation of proteins, after which they are folded into the appropriate shape.

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Travelling from left to right through a period of such a periodic table reduces the size of both atom.

Traveling from left to right inside a period of such periodic table causes the size of the atom to shrink. The number of protons and the positive nuclear energy both rise with such an increasing in the atomic number. The diameter of the atom shrinks as the nucleus draws the outermost electron.

Since they are eager to give up electrons and form cations, the substances on the left column of the periodic table possess low ionization energies.

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Ice will not melt as we need 16.72 KJ of heat but we have only 3.76 KJ

In thermodynamics, the enthalpy of fusion can be described as the change in its enthalpy resulting from giving energy, heat, to a specific amount to change its state from a solid to a liquid.

Given the reaction is  2 Na (s) + 2 H₂O(l) → 2 NaOH (aq) + H₂ (g)

Given the mass of sodium = 0.470 g

The moles of sodium = 0.470/23 = 0.020 mol

Given that two moles of sodium (Na) release heat = 368 KJ

Heat released by 0.020 mol of sodium (Na) = (368/2) × 0.020 = 3.76 KJ

Given the mass of ice = 50g

The number of moles = 50/18 = 2.78 mol

For melting, one mole of ice heat is required = 6.02 kJ/mol.

For 2.77 mol of ice = 6.02 × 2.78 = 16.72 KJ

But we have only 3.76 KJ of heat therefore, the ice will not melt.

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There would be 13.9 moles of the water.

We know that we could be able to use the Avogadro's number so as to determine the number of the molecules. this would stem from the postulation that one  mole of the substances would in it about 6.02 * 10^23 molecules of the water.

We would now be able to say based on the information that have been passed above in the question;

1 mole of water would contain 6.02 * 10^23 molecules of the water

x moles of water would contain 8.37 x 10^24 molecules

x = 8.37 x 10^24 molecules * 1/6.02 * 10^23

x = 13.9 moles

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Entropy and the inefficiency of energy transfer are part of the Second Law of Thermodynamics.

The first law of thermodynamics states that neither creation nor destruction of energy is possible. The universe becomes more entropic when a spontaneous process occurs, according to the second law of thermodynamics. Thermodynamics' third law: The entropy of a perfect crystal is 0 at absolute zero Kelvin. The overall entropy of a system may only ever increase or stay constant during spontaneous processes, according to the second law of thermodynamics. If the physical process is irreversible, the overall entropy of the system and its surroundings must increase. For a process to be irreversible, the final entropy needs to be higher than the starting entropy: Sf > Si (irreversible process). The overall entropy of a system and its surroundings can remain constant when a system is in thermodynamic equilibrium or undergoing a reversible process. The second law is sometimes known as the Law of Increased Entropy.

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