if 1.0 mol of n2 gas is mixed with xe gas, in a 5.0l container at 25 c. what are the moles of xe gas

Answer:

solid state

Explanation:

solid particles are close to each other , they vibrate for motion

Answer: Yes it can help make cake rise.

Explanation: Its a leavening agent and its a good ingredient for baking.

1.  the final concentration of NaOH after adding 125 mL of water to 45.3 mL of 0.71 M NaOH solution is approximately 0.189 M.

2.  the final concentration of KOH after adding 550 mL of water to 125 mL of 3.01 M KOH solution is approximately 0.557 M.

1.) If 125 mL of water is added to 45.3 mL of a 0.71 M NaOH solution, the resulting solution will be a diluted NaOH solution. The addition of water will increase the total volume while reducing the concentration of NaOH. To determine the final concentration of NaOH, we need to consider the conservation of moles.

First, let's calculate the moles of NaOH in the initial solution:

moles of NaOH = volume (in L) × concentration (in M)

moles of NaOH = 0.0453 L × 0.71 M = 0.0321433 moles

After adding 125 mL (0.125 L) of water, the total volume of the solution becomes 0.0453 L + 0.125 L = 0.1703 L.

To find the final concentration, we divide the moles of NaOH by the total volume:

final concentration of NaOH = moles of NaOH / total volume

final concentration of NaOH = 0.0321433 moles / 0.1703 L ≈ 0.189 M

Therefore, the final concentration of NaOH after adding 125 mL of water to 45.3 mL of 0.71 M NaOH solution is approximately 0.189 M.

2.) If 550 mL of water is added to 125 mL of a 3.01 M KOH solution, the resulting solution will also be a diluted solution. Again, we will apply the conservation of moles to determine the final concentration of KOH.

First, calculate the moles of KOH in the initial solution:

moles of KOH = volume (in L) × concentration (in M)

moles of KOH = 0.125 L × 3.01 M = 0.37625 moles

After adding 550 mL (0.55 L) of water, the total volume of the solution becomes 0.125 L + 0.55 L = 0.675 L.

To find the final concentration, divide the moles of KOH by the total volume:

final concentration of KOH = moles of KOH / total volume

final concentration of KOH = 0.37625 moles / 0.675 L ≈ 0.557 M

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Vapor pressure will increase with Temperature.

What does vapor pressure mean exactly?

The vapor pressure of a liquid is the pressure at which a vapor and its liquid (or solid) are at equilibrium, or the pressure at which a sample of a liquid (or solid) evaporates in a closed container to produce a vapor.

Vapor pressure for liquids is influenced by the following variables: Intermolecular Force and Temperature

The molecules of a liquid begin to move more quickly as the temperature rises. More vapor pressure is produced as a result of the production of gas. As a result, vapor pressure and temperature are directly related. The related graph will be a straight line graph since temperature and vapor pressure are directly proportional to one another.

Hence, Vapor pressure will increase with Temperature.

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Given the equation :

CH3OH +Cl2 →← 2 CH3CL + 2OH ^-1

at equilibrium concentration, we have:

(1.5 -2x )/ 5L + (1.0 -x )/5L =2x /5L + 2x /5L

→ (1.5-2x+ 1 -x )/ 5L = 4x /5L

→(0.5 -3x)/5L = 4x/5L (5L in the Left hand side cancels 5L inthe right hand side)

→ 0.5 = 4x +3x

0.5 = 7x

x = 0.5/7

x = 0.071

( Extra note : Now lets test and see if this balances ):

LHS : (1.5 -2x )/ 5L + (1.0 -x )/5L = 0.5 -3x)/5L

= 0.5 - 3(0.071)/5

= 0.287 /5 = 0.05

RHS :4(x) /5 = 4(0.071) /5

= 0.28/5 = 0.05

at equlibrium , LHS = RHS therefore our x value is 0.07

A secondary active transport process that cotransports an amino acid with Na+ is an example of a symport mechanism, in which both molecules move in the same direction across the cell membrane.

A secondary active transport process that cotransports an amino acid with Na+ is an example of a symport mechanism, in which both molecules move in the same direction across the cell membrane. Specifically, this type of transport involves the coupling of the energy stored in the electrochemical gradient of Na+ to the uphill transport of an amino acid against its concentration gradient. As Na+ flows down its concentration gradient into the cell, it drives the movement of the amino acid into the cell as well. This type of transport is known as secondary because it indirectly uses energy stored in the electrochemical gradient of Na+ to drive the movement of the amino acid, rather than directly using ATP hydrolysis like primary active transport mechanisms.

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The molar concentration of a 12% sodium chloride solution is approximately 2.05 M.

To determine the molar concentration of a 12% sodium chloride solution, we need to convert the given percentage concentration into molarity.

First, we need to understand that the percentage concentration refers to the mass of the solute (sodium chloride) relative to the total mass of the solution.

In this case, a 12% sodium chloride solution means that there are 12 grams of sodium chloride in 100 grams of the solution.

To convert this into molar concentration, we need to consider the molar mass of sodium chloride, which is 58.5 g/mol.

We can start by calculating the number of moles of sodium chloride in 12 grams:

Moles of sodium chloride = mass of sodium chloride / molar mass of sodium chloride

Moles of sodium chloride = 12 g / 58.5 g/mol = 0.205 moles

Next, we calculate the volume of the solution in liters using the density of the solution. Since the density is not provided, we assume a density of 1 g/mL for simplicity:

Volume of solution = mass of solution / density

Volume of solution = 100 g / 1 g/mL = 100 mL = 0.1 L

Finally, we calculate the molar concentration (Molarity) by dividing the number of moles by the volume in liters:

Molar concentration = moles of solute / volume of solution

Molar concentration = 0.205 moles / 0.1 L = 2.05 M

Therefore, the molar concentration of a 12% sodium chloride solution is approximately 2.05 M.


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Answer:

0.694 cents per second

Explanation:

25x100=2500 cents per hour, 2500/60 = 41.67 per minute and 41.67/60=0.694 cents per second

Answer:

15.6 g

Explanation:

Given that;

Mass of original sample = No = 500g

mass of sample remaining at 910 ms = N = ?

time taken to decay= 910 ms

Half life of Ca-37 = 181 milliseconds

From;

N/No = (1/2)^t/t1/2

N/500 = (1/2)^910/181

N/500 = (1/2)^5

N/500 = 1/32

32 N = 500

N = 500/32

N = 15.6 g

The order of increasing disorder is solid, liquid, and gas. This arrangement is based on the increasing freedom of movement and randomness of the particles as we move from solid to liquid to gas.

Solid: Solids have a highly ordered arrangement of particles, with strong intermolecular forces and fixed positions of atoms or molecules.

Liquid: Liquids have less order compared to solids, as particles have more freedom of movement while still maintaining close proximity to one another.

Gas: Gases have the highest degree of disorder among the three phases. Gas particles are widely spaced, move freely, and lack a definite shape or volume.

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The given statement "A hot plate is the only heat source available in the lab room to heat the hydrate in a crucible at least 2 times for 10-15 minutes at medium-high setting" is true because the water in hydrate can be removed by heating.

The crucible is the type of the laboratory glassware that is designed to melt or to burn the solid chemicals over the burner. Crucible is made from the heat resistant ceramic or the metal. The hot plates are the laboratory tools that is used for the  uniformly heat the samples. The hot plates are available with Varity of the  number of the different heating top styles.

Thus, the hot plate is the heating tool to heat the hydrate in the crucible.

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Approximately 18.4832 mL of 0.250 M NaOH is required to neutralize 30.4 mL of 0.152 M HCl.

To determine the volume of 0.250 M NaOH required to neutralize 30.4 mL of 0.152 M HCl, we can use the concept of stoichiometry and the balanced chemical equation for the neutralization reaction between NaOH and HCl:

NaOH + HCl -> NaCl + H2O

From the balanced equation, we can see that the stoichiometric ratio between NaOH and HCl is 1:1. This means that for every mole of NaOH, we require an equal number of moles of HCl to neutralize.

First, let's calculate the number of moles of HCl present in the given volume:

Moles of HCl = concentration of HCl * volume of HCl

= 0.152 M * 30.4 mL

= 4.6208 mmol (millimoles)

Since the stoichiometric ratio is 1:1, the number of moles of NaOH required to neutralize the HCl is also 4.6208 mmol.

Now, let's calculate the volume of 0.250 M NaOH needed to contain 4.6208 mmol:

Volume of NaOH = (moles of NaOH) / (concentration of NaOH)

= 4.6208 mmol / 0.250 M

= 18.4832 mL

Therefore, approximately 18.4832 mL of 0.250 M NaOH is required to neutralize 30.4 mL of 0.152 M HCl.

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Answer:

a. insoluble.

Explanation:

This is the opposite of soluble, which means things can dissolve in a liquid, so insoluble means a solid cannot dissolve in a liquid.

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use variable

1K₂MnF₆ + aSbF₅⇒ bKSbF₆ + cMnF₃ + dF₂

K, left=2,right=b⇒b=2

Mn, left=1, right=c⇒c=1

Sb, left=a, right=b⇒a=b=2

F, left=6.1+5a, right=6b+3c+2d

equation:

6+5(2) = 6(2)+3(1)+2d

16=15+2d

1=2d

d=0.5

So the reaction equation becomes:

1K₂MnF₆ + 2SbF₅⇒ 2KSbF₆ + 1MnF₃ + 0.5F₂ x2

2K₂MnF₆ + 4SbF₅⇒ 4KSbF₆ + 2MnF₃ + F₂

the first one is 4 the second one is 2 the forth one is3 and the last one is 7

Answer: The correct answer is The aplastic potential energy of the spring will be two times greater than the gravitational potential energy of the object.

Explanation: The formula for Gravitational potential energy is= mgh where

m= mass

g= 9.8

h= height

On the other hand the formula for elastic potential energy is (1/2)KX^2

Where K is the spring. By changing the values of H and X, we will see elastic potential energy will remain more.

Answer:

the answer is C

Explanation:

took the test one edge

Answer:

C

Explanation:

The percent composition of an atom in a molecule gives information regarding the relative amount of mass an atom contributes to a molecule.

Answer:

Explanation:

To find the number of moles in a substance given it's number of entities we use the formula

\(n = \frac{N}{L} \\ \)

where n is the number of moles

N is the number of entities

L is the Avogadro's constant which is

6.02 × 10²³ entities

From the question we have

\(n = \frac{3.01 \times {10}^{23} }{6.02 \times {10}^{23} } \\ \)

We have the final answer as

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Transition metals are significantly less reactive than alkali metals in group 1 and alkali Metals metals in group 2. Because they do not respond quickly with water or oxidant, they are resistant to corrosion. Other transition metal properties are distinct.

Transition metals are denser and more powerful than alkali metals. Alkali metals have much lower melting and boiling points than transition metals. When alkali metals react with water, they form an alkaline solution; transition metals do not. By losing one or two electrons, a transition metal does not achieve the stable electron configuration of the nearest noble gas. As a result, transition metals are less reactive and do not readily lose electrons as alkali or alkaline earth metals do.

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Answer:

Well a human bein is a complex organism with pain and emotion.

There is a very very complex brain that recives and sends sis also faster than the eye can see.

Thats why when you touch a hot surface a lighting fast signal is sent from the hand to the brain and the brain sends a signal back to the hand to tell it what to do and this all happens a faster than a second.

A human is made out of millions, billions, trillions, and quadrillions if cells working together to perform special tasks like eating, walking, and talking.

Answer:

Humans are the only known species that are able to think as complexly as we do. For example, animals are not able to have thoughts about their thoughts. Animals are not able to ponder the existence of our universe, develop calculus, chemical solutions, etc. There are many other intelligent species- like chimpanzees and octopi. However, both of those species are limited in the type of communication, emotion, and complex thinking skills that they possess compared to human beings.

Explanation:

The reason why the adsorbent in a chromatography column should never be allowed to dry is that cracks may form due to air pockets in the adsorbent, negatively impacting the separation process.

When the adsorbent dries out, the particles may also fuse together, making it impossible for the mobile phase to pass through, resulting in a loss of separation efficiency. Additionally, if the adsorbent oxidizes more readily when in direct contact with air, this could affect the separation quality. Finally, mobile phase molecules may permanently adhere to the surface of the adsorbent if it dries out, further affecting the separation. Therefore, it is essential to keep the adsorbent in a chromatography column wet to avoid any potential issues.
The reason why the adsorbent in a chromatography column should never be allowed to dry is that cracks form due to air pockets in the adsorbent, and this will negatively impact the separation. When the adsorbent dries out, air pockets can form within the column, leading to an uneven surface for the mobile phase to interact with the adsorbent. This uneven surface can cause poor separation of the sample components and reduce the overall efficiency of the chromatography process. Therefore, it is crucial to maintain the proper moisture level in the adsorbent to ensure optimal separation and accurate results.

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3. The correct statement for the data shown is The population is evolving. The correct option to this question is D. 4. Migration will change the frequency of both the allele. The correct option to this question is C.

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Increasing order of boiling point of the given molecules is

Benzene< Benzaldehyde<Phenol<Benzoic acid.

Boiling point is directly proportional to intermolecular forces.

The intermolecular forces present in the given molecules are.

so, as benzene is nonpolar , only weak london dispersion force is present. Hence boiling point of benzene is least among the given molecules. Benzaldehyde is polar, so dipole -dipole force is also present. But no H-bonding is present. Hence, boiling point of benzaldehyde is less than that of phenol and benzoic acid. Now, both phenol and benzoic acid is polar as well as they can form H-bonding. But phenol can only form intermolecular hydrogen bonding, but benzoic acid can form both intermolecular as well as intramolecular H bonding. So it can exist as dimer. The presence of dimer further strengthen the vander Waals dispersion forces , that increases the boiling point of Benzoic acid.

Hence increasing order of boiling point of the given molecules is

Benzene< Benzaldehyde<Phenol<Benzoic acid.

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Answer:Fraction remaining = 0.5n where n = # of half lives elapsed

Fraction remaining = 2.0 g/30.0 g = 0.06667

0.06667 = 0.5n

log 0.06667 = n log 0.5

n = 3.907 half lives

3.907 half lives x 3.0 min/half life = 11.7 minutes

Explanation:

The component that will limit the reaction is:

a. HCl (Hydrochloric acid)

To determine the limiting reagent in the given chemical reaction, we need to compare the moles of each reactant to the stoichiometric ratio of the balanced equation.

Let's calculate the number of moles for each reactant:

For Zn:

Molar mass of Zn = 65.38 g/mol

Number of moles of Zn = mass / molar mass = 3.27 g / 65.38 g/mol ≈ 0.05 mol

For HCl:

Molar mass of HCl = 36.46 g/mol

Number of moles of HCl = mass / molar mass = 3.30 g / 36.46 g/mol ≈ 0.09 mol

According to the balanced equation, the stoichiometric ratio between Zn and HCl is 1:2. This means that for every 1 mole of Zn, we need 2 moles of HCl.

In this case, the number of moles of Zn (0.05 mol) is less than half of the number of moles of HCl (0.09 mol). Therefore, Zn is the limiting reagent, as it will be completely consumed before all the HCl can react.

So, the component that will limit the reaction is:

a. HCl (Hydrochloric acid)

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The one way you can the difference between Eukaryotic and Prokaryotic cells is the presence of a membrane-bound nucleus.

Eukaryotic cells are organisms that have a membrane-bound nucleus. They are multi-cellular and have a large cell size. They are more complex and have a linear DNA form. They are normally found in animals, plants, etc.

Prokaryotic cells are unicellular organisms with no membrane-bound nucleus. They have small cells. They are simple and circular, and are encased by a cell wall. They do not have any mitochondria in them.

They both help in protein synthesis. They belong to the kingdom of bacteria.

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Answer:

Explanation:

I'm not sure what is being asked, not the units of "1.5."  I don't know of potassium "ioxicide."  Was "dioxide" intended?

I'll assume the question is "What is the concentration, in Molar, of 1.5g of potassium dioxide in 150cm^3 of water (150cm^3 is 150 ml).

The molar mass of K2O, potassium dioxide, is 94.2 g/mole.  1.5g is (1.5g/94.2 g/mole) or 0.0159 moles of K2O.  The definition of Molar is moles/liter.  So take the moles of K2O and divide by the liters, which is 0.150L in this case.

(0.0159 moles K2)/0.150 L  = 0.106 M K2O

Answer:

it's volume also decrease

Explanation:

Plasma is an ionized gas, a distinct fourth state of matter. “Ionized” means that at least one electron is not bound to an atom or molecule, converting the atoms or molecules into positively charged ions.but plasma is present in human body too in a liquid form.

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