The mole fraction of Ar in a mixture of gases is 0.829 with a partial pressure of 0.341 atm. What is the total pressure of the sample?

For this chemical, the heat of vaporization is 86*104 J/g. The conversion of 25.0 grammes of a chemical at its usual boiling point to a gas at 1 atmosphere of pressure requires the addition of 34,400 joules.

A phase transition from the liquid phase to the vaporization phase occurs when an element or molecule vaporization.

Evaporation and boiling are the two methods of vaporization. Boiling is a bulk phenomenon, whereas evaporation occurs on the surface.

The force perpendicular to an object's surface that is delivered per unit area over that force is known as pressure (symbol: p or P). The gauge pressure, also known as gauge pressure, is the pressure in relation to the surrounding air pressure.

q=mHv

=(25)(1)(34400)

= 86*10^4 J/g

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The total internal energy in the container is 329.77 Btu and the enthalpy in the container is 385.14 Btu.

Using the steam tables, we can determine the specific volume of water at the given pressure and temperature. The specific volume of water is 0.01658 \(ft^3/lbm\).

The mass of water in the container is 0.92 lbm, so the total volume of the water is:

V = m/v = 0.92 lbm / 0.01658 \(ft^3/lbm\)  = \(55.539 ft^3\)

Assuming the water is at saturation, we can find the total internal energy and enthalpy by using the values in the steam tables for saturated water at 100 psia.

From the steam tables, the total internal energy of saturated water at 100 psia is 358.05 Btu/lbm, so the total internal energy in the container is:

U = m * u = 0.92 lbm * 358.05 Btu/lbm = 329.77 Btu

From the steam tables, the enthalpy of saturated water at 100 psia is 419.02 Btu/lbm, so the enthalpy in the container is:

H = m * h = 0.92 lbm * 419.02 Btu/lbm = 385.14 Btu

Therefore, the total internal energy in the container is 329.77 Btu and the enthalpy in the container is 385.14 Btu.

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Answer:

A protection

Explanation:

The main function of toenails is likely for protection, compared to enhancing grip or the fine motor functions the fingernails have. The tops of the toes are vulnerable to injury and, as we’ve all learned the hard way, stubbing. By having a protective nail on top of the toe, the toes are less vulnerable to injury and infections

Answer:2

Explanation:

The number of valence electrons for a helium atom is 2. This can be confirmed by looking at the electronic configuration.

Helium is placed in the noble gas series as it has certain properties of it. The atomic number of helium is 2. Thus, it has two electrons in its outermost shell but it has completely filled orbital.

Electronic configuration of He = 1s2

Thus, for drawing the electron dot structure, there are two valence electrons.

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Answers and explanations:

1) Lead, it is heavier than iron.

2) Lead, since it's heavier, it would have more mass and therefore more atoms.

3) (for sodium) 82.03379 gram x 6.23= 511.070512 grams= 417.05 pounds

(for sucrose) 342.29648(one molar)  x .65= 0.4 pound

The sodium would be heavier (not sure if accurate)

4) Because atoms are way too small to count, therefore we use molar masses.

Answer:

i.e. mass of 1 mole of glucose, C6H12O6 = (6 × 12.01 + 12 × 1.01 + 6 × 16.00) g = 180.18 g (using atomic weight data to 2 decimals) 1 mole of carbon atoms weighs 12.01 g and there are 6 moles of C atoms in 1 mole of glucose, so the mass of carbon in 1 mole of glucose = 6 × 12.01 g = 72.06 g.

It is used in the design of engines, where changes in pressure and temperature are used to convert thermal energy into mechanical work. It is also used in meteorology to predict weather patterns and in the study of the Earth's atmosphere.

Pressure and temperature are two fundamental physical quantities that are closely related in many physical processes. Understanding the relationship between these two quantities is essential in many scientific and engineering fields. This relationship can be described by the ideal gas law, which states that the pressure of an ideal gas is directly proportional to its temperature when the volume and number of particles are constant. In other words, when the temperature of a gas increases, its pressure increases, and vice versa. This can be explained by the kinetic theory of gases, which assumes that gases are made up of a large number of small particles that are in constant motion. The speed of these particles is proportional to the temperature of the gas. As the temperature of the gas increases, the particles move faster and collide more frequently with the walls of the container, resulting in an increase in pressure. Similarly, when the temperature of the gas decreases, the particles move slower and collide less frequently with the walls of the container, resulting in a decrease in pressure. This relationship between pressure and temperature is essential in many scientific and engineering applications.

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The term that completes the given statement is "Compartmentation improve catalysis because substrates can proceed through several reactions without diffusing away or entering into other reactions".

Compartmentation is a biological process that refers to the arrangement of organs, tissues, and other structures into functionally distinct spaces. In cells, compartmentation aids in the localization of various enzymatic reactions and also allows for the control of various biochemical pathways by preventing metabolic interference among them. There are several cellular components responsible for compartmentalization, and they differ between prokaryotic and eukaryotic cells.

In eukaryotic cells, various organelles play this role, such as the nucleus, mitochondria, peroxisomes, and lysosomes. In contrast, prokaryotic cells lack these membrane-bound organelles, and hence the different metabolic pathways are compartmentalized based on their localization in the cytoplasm.

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When the two atoms in such a covalent polar bond share the bond's electrons unequally.

The smallest elemental component of an atom, the electron has a negative charge. In a neutral atom, there are an equal amount of protons and electrons. A electrons and one proton are all that the hydrogen atom has. On the contrary hand, the uranium atom possesses 92 protons, which means 92 electrons.

The negatively charged components of an atom are called electrons. The total negative charge of an atom's electrons counteracts that positive charge of its protons inside the atomic nucleus.

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The melting point is the temperature a substance must reach to go into its liquid phase (or solid) and a boiling point is the temperature a substance must reach to go into its gas phase (or liquid). For example, water must be 0ºC to melt or freeze and 100ºC to boil.

Answer:

yes they are < 3

Explanation:

The number of atoms that would make 7.31 moles of potassium is 4.40 × 10²⁴ atoms.

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

According to this question, there are 7.31 moles of pottasium. The number of atoms can be calculated as follows:

no of atoms = 7.31 moles × 6.02 × 10²³

no of atoms = 4.40 × 10²⁴

Therefore, 4.40 × 10²⁴ atoms is the number of atoms in pottasium.

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The number of unpaired electrons for each ion is determined by the electron configuration of the ion. In general, the more unpaired electrons an ion has, the more paramagnetic it is (i.e. it is attracted to a magnetic field).

Here are the transition metal ions ranked in order of decreasing number of unpaired electrons:
1. Chromium (III) ion (Cr³⁺) - 3 unpaired electrons
2. Manganese (II) ion (Mn²⁺) - 5 unpaired electrons
3. Iron (III) ion (Fe³⁺) - 5 unpaired electrons
4. Iron (II) ion (Fe²⁺) - 4 unpaired electrons
5. Cobalt (II) ion (Co²⁺) - 3 unpaired electrons
6. Copper (II) ion (Cu²⁺) - 1 unpaired electron
7. Nickel (II) ion (Ni²⁺) - 2 unpaired electrons
8. Zinc (II) ion (Zn²⁺) - 0 unpaired electrons (not a transition metal)

A physical field called an electric field surrounds electrically charged particles and attracts or repels all other charged particles nearby. It also refers to the physical field of a system of charged particles. A magnetic field, a vector field that describes the magnetic influence on moving electric charges, electric currents, and magnetic materials.

A magnetic field that changes over time generates an electric field. According to the first law of Faraday, whenever a conductor is subjected to a fluctuating magnetic field, an electromotive force is always generated. The current that develops when the conductor circuit is closed is referred to as induced current.

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Answer:

it's volume also decrease

Answer:

69Ga=68.925580(3),71Ga=70.9247005(3)

Answer:

PVC Pipe slow down the flow.

Answer:

Biogeochemical cycles are essential for life and important to the ecosystems because matter on earth is limited in amount, and space for dead organisms as well. Additionally, biogeochemical cycles are important as as they transport and store these chemical elements so that they can be used by living organisms.

Explanation:

mark brainliest thank you

Answer:

HCl is a polar covalent compound, because of electronegativity difference between Cl(3.5) and hydrogen (2). Hence in this way, the bond between HCl breaks and they formed ions in the polar solvent like water .

Answer: 9

Explanation:

2,5 are the two phrases describing the synthesis of amino acids are accurate.

Alpha-ketoglutarate is transaminated in the human body to produce lysine, an important amino acid. The precursor is reduced during the amino acid alanine's synthesis, and oxidation occurs during alanine's breakdown.

The precursor is reduced during the amino acid alanine's synthesis, while oxidation occurs during alanine's breakdown. Metabolic pathway intermediates and alpha-keto acids are the carbon sources for the production of non-essential amino acids.

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Answer:

electrons

Explanation:

The group number tells you the number of electrons in the element's outer shell (or valence shell).

Extra info: Elements with the same number of electrons on their outer shell are grouped together in the periodic table because they have similar properties.

Hope this helps!

Answer:

Complete combustion

Explanation:

To solve such this we must know the concept of combustion reaction. Therefore the products of complete combustion are carbon monoxide, carbon and water.

Chemical reaction is a process in which two or more than two molecules collide in right orientation and energy to form a new chemical compound. The mass of the overall reaction should be conserved.

There are so many types of chemical reaction reaction like combustion reaction, acid base reaction, double displacement reaction, combustion reactions. The products of complete combustion are carbon monoxide, carbon and water. Large amount of heat is also released in combustion reaction

Therefore the products of complete combustion are carbon monoxide, carbon and water.

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Chemistry is the name of the scientific discipline that examines molecules and chemical bonds. There are two different kinds of solutions: acidic and basic.

The precise response is stated and is given.

Box 1, with a positive value for the H solution (endothermic)

Box 2's H value is zero, and Box 3's H solution has a negative value (exothermic)

The amount of heat exchange between a system and its surroundings is measured by the delta H reaction (H). H can be either positive (endothermic, which requires heat), or negative (exothermic, which releases heat). How much heat is produced or absorbed during the dissolution process determines the enthalpy of solution formation. It can therefore be either negative (exothermic) or positive (endothermic).

The correct answer is mentioned as described:

Box 1, the value of ΔH solution is positive (endothermic)

Box 2 ΔH value = 0 and ,

Box 3 ΔH the value of ΔH solution is negative (exothermic)

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The quantity in moles of chlorine gas at 120.0 °C and 33.3 atm that would occupy a vessel of 12.0 L is 0.754 moles.


We can use the Ideal Gas Law to solve for the quantity of moles of chlorine gas. The formula for the Ideal Gas Law is PV = nRT, where P is pressure, V is volume, n is the quantity in moles, R is the gas constant, and T is temperature in Kelvin.

First, we need to convert the temperature from Celsius to Kelvin: 120.0°C + 273.15 = 393.15 K.

Next, we can rearrange the Ideal Gas Law to solve for n:
n = PV/RT

We plug in the values given in the problem:
P = 33.3 atm
V = 12.0 L
R = 0.0821 L•atm/mol•K (gas constant)
T = 393.15 K

n = (33.3 atm x 12.0 L) / (0.0821 L•atm/mol•K x 393.15 K)
n = 0.754 moles

Therefore, the quantity in moles of chlorine gas at 120.0°C and 33.3 atm that would occupy a vessel of 12.0 L is 0.754 moles.

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Felting is a physical procedure. The mixture of the given solid and the liquid can be separated using filter paper in this process, for example, sand and water can be separated using filter paper.

Filtration is the process of removing solid particles from a liquid or gaseous fluid by using a filter medium that allows the fluid to pass through but retains the solid particles. The desired product could be either the clarified fluid or the solid particles removed from the fluid.

Separating sand from water is a physical process rather than a chemical one. Sand and water are a mixture that can be easily separated without the use of any chemicals. Sand can be filtered out of the water with a sieve and then dried to allow any remaining water to evaporate.

Thus,Water and sand are being separated by filtration.Felting  is used as a physical change.

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Answer:

e.  More protons than electrons

f.   2 more protons than electrons

g.  Cation (anoin is for negatively charged atoms).

Explanation:

See attached worksheet

Since 273 k – 243 k equals 30, the temperature change for an object going from 273 k to 243 k is 30 k.

Colors and temperatures can both be measured in Kelvin: A temperature unit commonly used in science is the Kelvin scale. Lord Kelvin created the scale after realizing the need for one with absolute zero as the zero point, which translates to 0 K as the lowest attainable temperature, or -273,15 °C.

On the Kelvin scale, a body's temperature cannot be negative. Since the Kelvin scale's absolute zero represents the lowest temperature that may exist, it is impossible for it to be negative.

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Answer:

225 mL of water must be added.

Explanation:

First we calculate how many HCl moles are there in 516 mL of a 0.191 M solution:

Now we use that number of moles (that remain constant during the dilution process) to calculate the final volume of the 0.133 M solution:

We can calculate the volume of water required from the volume difference:

The correct name of the compound is dinitrogen pentoxide.

We know that we can be able to name a compound from the formula of the compound. This is the whole essence of the IUPAC nomenclature. The International Union of Pure and Applied Chemistry put forward some standard rules  that can be applied when we are naming a compound.

We can see here that we have two atoms of nitrogen and five atoms of oxygen in the compound and this would have to reflect as we name the compound and this also as we can see do  derive directly from the molecular formula of the compound.

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