what is the volume in cubic meter and in cubic decimeter of 2.0mol of nitrogen on gas at 1000c and 100,000pa? (R=8.31j/molk)​

Answer:

the unit of force is newton represented with symbol "N"

The molar mass of the gas is obtained as 32.1 g/mol.

The molar mass has to do with the mass one mole of a substance. We know that according to the question, we can be able to obtain the number of moles of the compound from the ideal gas equation.

This is how we are able to get the number of moles of the gas as 0.14 moles. Now we need to use the information that we have to get the molar mass of the gass.

Number of moles = mass/ molar mass

Molar mass = mass/Number of moles

Molar mass =  4.5g/0.14  moles

= 32.1 g/mol

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Answer:

translation to English please

The claim that cold water boils faster than hot water is not true. The reason why this misconception may have emerged is likely due to a misunderstanding or misinterpretation of certain observations. However, there is no scientific evidence supporting this claim.

One possible reason for this misconception is the notion that hot water takes longer to reach its boiling point because it starts at a higher temperature. When comparing hot and cold water in terms of reaching the boiling point from room temperature, the cold water may appear to boil faster.

However, this is simply because the hot water has already gained a head start in terms of temperature. In reality, once both liquids reach their respective boiling points, the hot water will boil first.

Scientifically, the boiling point of water is determined by its temperature and pressure. Under normal atmospheric conditions, the boiling point of water is 100 degrees Celsius (212 degrees Fahrenheit). Heating water raises its temperature, and once it reaches 100 degrees Celsius, it transitions into the gaseous state. The initial temperature of the water does not affect the boiling point itself.

In conclusion, the claim that cold water boils faster than hot water is a misconception. It likely arose from a misinterpretation of observations, and there is no scientific evidence to support this claim. The boiling point of water is solely determined by its temperature and pressure, regardless of whether the water is initially hot or cold.

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Answer:

OD

Explanation:

they live in every habitat on Earth. Marine habitats, ocean basins, freshwater habitats, and inland equatic habitats including salt lakes.

Answer:

Solve algebraically by setting the y equal to 0.892 = 0.355x + 0.058. Then subtract the 0.058 over then follow by dividing by 0.355. You will then get the x value equal to your concentration. The answer is 2.676.

Hope this helps!

Explanation:

It turns electrical energy into KE.

This is the correct statement of how a generator works:

A generator is described as a device that converts motive power or fuel-based power into electric power for use in an external circuit.

Generators contrary to general opinion do not create electricity instead it uses the mechanical energy supplied to it to force the movement of electric charges present in the wire of its windings through an external electric circuit. This flow of electrons makes up  the output electric current supplied by the generator.

The present-day generators work on the principle of electromagnetic induction that was discovered by Michael Faraday.

Faraday realized that the above flow of current can be created by moving an electrical conductor in a magnetic field and this movement creates a voltage difference between the two ends of the conductor which causes the electric charges to flow, hence generating electric current.

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Complete question:

How does the generator work? Select the statement that describes that.

______It turns electrical energy into KE.

_____ It turns sound energy into electrical energy.

_____ It turns electrical energy into sound energy.

_____ It turns electrical energy into thermal energy.

_____ It turns KE into electrical energy.

Answer:

1.92704e24 atoms

Explanation:

Using Avogadro's number, you can set up a stoichiometric equation to find the number of atoms.

There are 1.926 × 10²⁴ atoms in 3.2 moles of sulfur (S).

The number of atoms in a substance can be calculated by multiplying the number of moles by Avogadro's number.

Avogadro's number is the number of atoms present in 12 grams of isotopically pure carbon-12, being 6.02214076 × 10²³.

According to this question, there are 3.2 moles of sulfur. The number of atoms can be calculated as follows:

no of atoms = 6.02 × 10²³ × 3.2

no of atoms = 19.26 × 10²³

no of atoms = 1.926 × 10²⁴

Therefore, 1.926 × 10²⁴ atoms are in 3.2 moles of sulfur.

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Answer:

nitrogen oxide

Explanation:

Answer:

NH₄⁺ (aq) + OH⁻ (aq) → H₂O (l) + NH₃ (g)

General Formulas and Concepts:

Chemistry - Solutions

Explanation:

Step 1: RxN

NH₄Cl (aq) + NaOH (aq) → H₂O (l) + NH₃ (g) + NaCl (aq)

Step 2: Balance RxN

NH₄Cl (aq) + NaOH (aq) → H₂O (l) + NH₃ (g) + NaCl (aq)

Step 3: Ionic Equations

Total Ionic Equation

Break up aqueous solutions.

NH₄⁺ (aq) + Cl⁻ (aq) + Na⁺ (aq) + OH⁻ (aq) → H₂O (l) + NH₃ (g) + Na⁺ (aq) + Cl⁻ (aq)

Net Ionic Equation

Cancel out spectator ions.

NH₄⁺ (aq) + OH⁻ (aq) → H₂O (l) + NH₃ (g)

The volume of the rectangle has been given by the product of length, breadth, and height. The mass of the air with a density of 1180 g/m³ is 708.57 gms.

The density of the substance has been known to be given by the mass's ratio to the volume. The formula for density is given as,

Density = Mass ÷ Volume

Given,

Density = 1180 g/m³

The volume of the rectangle = L×B×H

Substituting the values above,

Mass = Density × Volume

M = 1180 × 1.2 × 10⁻² × 8.34 × 10¹ × 6.0 × 10⁻¹

= 708.57 gm

Therefore, the mass of the air is 708.57 gms.

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Answer:

H

Explanation:

Answer:

D

Explanation:

It is a solid everything that is a solid is heavier

It is necessary for astronauts on the International Space Station to generate and recycle oxygen because There is not enough oxygen in space to sustain life.

The correct answer choice is" There is not enough oxygen in space to sustain life."

In space, there is no breathable air as there is on Earth, and the amount of oxygen available is limited. Astronauts need a constant supply of oxygen to breathe and to sustain their bodily functions.

Therefore, the International Space Station has a closed-loop life support system that generates and recycles oxygen. This system converts carbon dioxide exhaled by the astronauts into oxygen through a process called electrolysis.

The generated oxygen is then supplied back into the station's atmosphere. This process helps ensure that the astronauts have a constant supply of breathable air and can survive in the space station for extended periods of time.

Therefore "There is not enough oxygen in space to sustain life." is the correct answer.

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You would recover 36.525g of NaCl after evaporating all of the water.

To find the grams of NaCl that would be recovered after evaporating all the water, we can use the following formula:

mass = moles * molar mass

Where:

Moles = Molarity * Volume

Molarity = 0.250 M

Volume = 2500.0 mL = 2.5 L

Molar mass of NaCl = 58.44 g/mol

mass = 0.250 M * 2.5 L * 58.44 g/mol

mass = 36.525 g

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Answer:

Im pretty sure that 5N to the Right is correct answer

Answer:

oi mate

the answer is its because its malleable and ductile. Copper is a ductile metal.

Explanation:

have a nice day laddie

Copper can be shaped into wires because it is highly malleable and ductile. Copper is a versatile metal with a rich history that goes back to early human civilizations.

A metal with great versatility and a long history that dates to ancient civilizations is copper. Its colour is reddish-orange, and due to its great electrical and thermal conductivity, it is one of the most crucial metals in many different industries. First off, copper's great conductivity makes it a popular material for electrical wiring and electronics. It is perfect for power transmission, telecommunications, and the manufacture of electrical equipment since it effectively transports electricity. Due to its capacity to transport heavy current loads without overheating or suffering considerable power losses, copper wires are frequently used.

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Answer: The statement that correctly describes a physical change is may involve a change in phase but does not involve a change in the molecular structure. The answer is letter B.

Explanation: trust me

Explanation:

OA- because there is breakdown of chemical bonds

kr,5s2,4d2

Explanation:

as itis in the 2nd transition series

Hydration is defined as a reaction in which a chemical compound will react with water and have different products. In the case of NH4+, according to many sources, this compound will react with water in a reaction called Hydrolysis, in which the reaction will be the following:

NH4 + H2O -> NH3 + H3O

The atoms have different types of bonds holding molecules together and leads to evaporation.

Thus, A crucial stage in the Earth's water cycle is evaporation, which is the process by which water transforms from a liquid to a gas or vapor. Evaporation at the molecular level requires the interface to break at least one extremely strong intermolecular connection between two water molecules.

The chemical mechanism by which an evaporating water molecule acquires sufficient energy to escape from the surface has remained mysterious despite the significance of this activity.

Here, we demonstrate that the high kinetic energy of the evaporated water molecule is enabled by a precisely timed formation and dissolution of hydrogen bonds involving at least three water molecules at the interface, the recoil of which allows one water molecule to escape.

Thus, The atoms have different types of bonds holding molecules together and leads to evaporation.

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To find moles when given the molar mass, you can use the concept of molar mass as a conversion factor.Molar mass represents the mass of one mole of a substance, expressed in grams per mole (g/mol).

To calculate moles, divide the given mass of the substance by its molar mass. The equation is:

moles = mass / molar mass

For example, if you have 56 grams of carbon dioxide (CO2) and want to find the number of moles, you need to know the molar mass of CO2, which is approximately 44 g/mol. Using the equation above:

moles = 56 g / 44 g/mol

moles ≈ 1.27 mol

Therefore, there are approximately 1.27 moles of carbon dioxide in 56 grams.

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The number of gold atom : 1.204 x 10²¹

Given

0.6 g of 18 carat gold

mass number of gold = 197

24 carat as 100% gold

Required

The number of gold atom

Solution

Percentage of gold in 18 carat :

\(\tt \dfrac{18}{24}\times 100\%=75\%\)

Mass of gold in 0.6 g of 18 carat :

\(\tt 75\%\times 0.6~g=0.45~g\)

mol :

\(\tt mol=\dfrac{mass}{MW}=\dfrac{0.45}{197}=0.0023\)

A mole is a number of particles(atoms, molecules, ions)  in a substance

1 mole = 6.02.10²³ particles  

So the number of gold atom :

\(\tt 0.0023\times 6.02\times 10^{23}=1.204\times 10^{21}\)

Since we are missing the diagram to work with, we will answer this assuming that the test tube was placed inside a beaker of stearic acid, in which case the transfer of thermal energy is by way of radiation.

Thermal radiation is the most common method of transferring thermal energy. We see this every day, for example when a cup of coffee becomes colder over time, this is due to the coffee radiating its heat into the surrounding air. The heat will travel in waves through air or water, which is what happens to the test tube and the beaker.

Therefore we can confirm that in the case described and with the assumption made regarding the placement of the test tube,  the transfer of thermal energy will be by way of radiation.

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Answer:

rock is the correct answer

Explanation:

Answer: here's the thing: rocks are minerals.Well, made out of them. so you can say that dolerite is a rock, but it is made out of minerals

Explanation:

The IUPAC name for each of the compounds would be:

A. 2,6-Dimethyl octane

B. Octane

IUPAC naming is a system of naming organic compounds according to the rules set up by the International Union of Pure and Applied Chemistry.

According to these rules:

Applying these rules to the structures in the image, the IUPAC names would be as follows:

A. 2,6-Dimethyl octane

B. Octane

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Answer:

The granite block transferred 4080 joules of energy, and the mass of the water is 35.84 grams.

Explanation:

The equation needed to answer both parts of the question is:

Q = mcΔT

In this equation,

-----> Q = energy/heat (J)

-----> m = mass (g)

-----> c = specific heat (J/g°C)

-----> ΔT = change in temperature (°C)

Part #1:

First, you need to find the energy transferred from granite block using the previous equation. You have been given the mass, specific heat, and change in temperature.

Q = ? J                            c = 0.795 J/g°C

m = 126.1 g                     ΔT = 92.6 °C - 51.9 °C = 40.7 °C

Q = mcΔT

Q = (126.1 g)(0.795 J/g°C)(40.7 )

Q = 4080

Part #2:

Secondly, using the energy calculated in Part #1, you need to calculate the mass of the water. You have calculated the energy transferred, and have been given the specific heat and change in temperature.

Q = 4080 J                     c = 4.186 J/g°C

m = ? g                            ΔT = 51.9 °C - 24.7 °C = 27.2 °C

Q = mcΔT

4080 J = m(4.186 J/g°C)(27.2 °C)

4080 J = m(113.8592)

35.84 = m

Answer: blank 1: 4,080 joules

Blank 2: 35.8 grams

Explanation: