A student is studying a sample of neon in a container with a moveable piston (this means the container can change in size). If the sample in the container is initially at a pressure of 757.2 torr when the container has a volume of 81.4 mL, what is the pressure of the gas when the piston is moved so that the volume of the container becomes 132.5 mL? Round your answer to the nearest 0.01 and include units!
(thank you so much in advance)!

The amount remaining at the end of 5 half-lives is 7.81×10¹³ g

From the question given above, the following data were obtained:

The amount remaining can be obtained as follow:

N = 1/2ⁿ × N₀

N = 1/2⁵ × 2.5×10¹⁵

N = 1/32 × 2.5×10¹⁵

N = 0.03125 × 2.5×10¹⁵

N = 7.81×10¹³ g

Therefore, the amount remaining after 5 half-lives is 7.81×10¹³ g

Learn more about half-life: https://brainly.com/question/25783920

Answer:

The vertical columns on the periodic table are called groups or families because of their similar chemical behavior. All the members of a family of elements have the same number of valence electrons and similar chemical properties. The horizontal rows on the periodic table are called periods

Answer:

19.45g of Cu are expect to be produced

Explanation:

Based on the reaction:

2Ni + 3CuCl2 → 3Cu + 2NiCl3

2 moles of Ni react with 3 moles of CuCl2 to produce 3 moles of Cu

To solve this question we must find the moles of each reactant in order to find the limiting reactant. With the limiting reactant we can find the moles of Cu produced and the mass as follows:

Moles Ni -Molar mass: 58.6934g/mol-

12.00g * (1mol / 58.6934g) = 0.204 moles Ni

Moles CuCl2 -Molar mass: 134.45g/mol-

42.00g * (1mol / 134.45g) = 0.312 moles CuCl2

For a complete reaction of 0.204 moles of Ni are required:

0.204 moles Ni * (3 moles CuCl2 / 2 moles Ni) = 0.306 moles of CuCl2

As there are 0.312 moles, CuCl2 is the excess reactant and Ni is limiting reactant.

Moles Cu:

0.204 moles Ni * (3moles Cu / 2 moles Ni) = 0.306 moles of Cu are produced

Mass Cu:

0.306 moles of Cu * (63.546g / mol) =

The molecule that exhibits dispersion forces as its strongest intermolecular force among the given options is CH4 (methane). Dispersion forces, also known as London dispersion forces or van der Waals forces, are the weakest intermolecular forces. In CH4, the molecule is nonpolar, and there are no stronger forces like hydrogen bonding or dipole-dipole interactions present. As a result, dispersion forces are the strongest intermolecular forces in CH4.

Out of the given options, the molecule that exhibits dispersion forces as its strongest intermolecular force is CH4. Dispersion forces are the weakest type of intermolecular forces that occur due to temporary shifts in electron density in a molecule. As CH4 is a nonpolar molecule, it has no permanent dipole moment. Hence, its intermolecular forces are dominated by dispersion forces. NH3, S2, and CF4 have other intermolecular forces in addition to dispersion forces, such as hydrogen bonding, dipole-dipole interactions, and induced dipole-dipole interactions, respectively. Therefore, CH4 with its structure is an example of a molecule with dispersion forces as its strongest intermolecular force.
To know more about intermolecular force visit:

https://brainly.com/question/31797315

#SPJ11

The regions of the atmosphere where the temperature increases with altitude is stratosphere and where the temperature decreases with altitude is troposphere and mesosphere.

The earth is surrounded by atmosphere and the atmosphere is divided into several parts.

With increase in altitude the temperature varies in the atmosphere.

The reason of the atmosphere where the temperature increases with the altitude are stratosphere and thermosphere.

The region of the atmosphere where the temperature of the atmosphere decreases with the increase in the attitude easy troposphere and Mesosphere.

To know more about atmosphere, visit,

https://brainly.com/question/28124272

#SPJ4

If the pharmacy stocks 35% omeprazole suspension, it required 160 ml of the 35% omeprazole suspension for the dilution.

It is required to apply the idea of dilution equations to determine the quantity of 35% omeprazole suspension required for dilution.

Let C₁ be the concentration of the 8% omeprazole suspension (8%), and let V₁ be the volume of the 0.7 L 8% omeprazole suspension.

Let C₂ be the concentration of the 35% omeprazole suspension, and let V₂ be the volume of the 35% omeprazole suspension that we need to find.

The dilution equation states that the product of the starting volume and concentration (V₁ × C₁) and the end volume and concentration (V₂ × C₂) should be identical.

V₁ × C₁ = V₂ × C₂

Putting the given values:

0.7 L ×  8% = V₂  × 35%

0.056 L = V₂ × 35%

Dividing both sides by 0.35), get:

V₂ = 0.056 L / 0.35

V₂ = 0.16 L

Change 0.16 L to milliliters (ml):

0.16 L × 1000 ml/L = 160 ml

Thus, 160 ml of the 35% omeprazole suspension would be required for the dilution.

Learn more about dilution, here:

https://brainly.com/question/28202548

#SPJ4

Answer:

3846g of Carbon tetrachloride is in the chemical equation.

Explanation:

The Balanced equation is :

   CH4 + 4CL2 -> CCL4 + 4HCL

Converting grams to moles ;

  Moles of CL2 = Mass / Molar mass

  Molles of CL2 = 709.0g/70.906g/mol => 10 moles

  Moles  of CCL4 = Moles of CL2 / 4

  Moles of CCL4 = 10 moles/ 4 => 2.5 moles

Converting moles of CCL4 to grams:

 Mass of CCL4 = Moles of CCL4 x Molar mass of CCL4

 Mass of CCL4 = 2.5 moles x 153.823 g/mol => 384.5575 grams

Therefore 384.6 grams of carbon tetrachloride can be produced from reacting 709.0 grams of chlorine.

To know more about CCL4,

brainly.com/question/31315111

brainly.com/question/13199422

Answer:

Fnet = 13920 Newtons

Explanation:

Net force can be defined as the vector sum of all the forces acting on a body or an object i.e the sum of all forces acting simultaneously on a body or an object.

Mathematically, net force is given by the formula;

\( Fnet = Fapp + Fg\)

Where;

Given the following data;

Mass, m = 800 kg

Acceleration, a = 7.6m/s²

To find the applied force;

\( Fapp = ma\)

Substituting into the equation, we have;

\( Fapp = 800 * 7.6\)

Fapp = 6080N

To find the gravitational force;

We know that acceleration due to gravity, g = 9.8m/s²

\( Fg = mg\)

Substituting into the equation;

\( Fg = 800 * 9.8\)

Fg = 7840N

To find the net force;

\( Fnet = Fapp + Fg\)

Substituting into the equation, we have;

\( Fnet = 6080N + 7840N\)

Fnet = 13920 Newton.

Therefore, the net force experienced is 13920 Newton.

Answer: all of them

Explanation:

Answer:

The answers X i just took the test

Explanation:

Answer: i think 250ML

Explanation:

The release of neurotransmitters into the synapse is initiated by depolarization, which opens Ca2+ channels, allowing Ca2+ to move vesicles to the synaptic membrane.

This is the correct answer.When an action potential (AP) arrives at the axon terminal, it results in the opening of voltage-gated Ca2+ channels. The influx of Ca2+ into the nerve terminal causes the exocytosis of neurotransmitter-containing vesicles into the synaptic cleft. Calcium influx is thought to trigger neurotransmitter release via a mechanism that involves Ca2+ binding to the vesicle-associated protein synaptotagmin 1 (Syt1), which promotes the interaction of vesicles with the presynaptic membrane.The entry of Ca2+ through voltage-gated calcium channels is critical for neurotransmitter release, and its absence leads to severe neurological disorders such as ataxia and epilepsy. Calcium ion (Ca2+) is one of the most crucial signaling molecules in cells and is essential for many physiological functions, including neurotransmitter release. Calcium ions activate synaptic vesicle fusion and neurotransmitter release by binding to specific proteins in the active zone of the nerve terminal.

To know more about neurotransmitters visit:

https://brainly.com/question/28101943

#SPJ11

Given data:H2O vapor content: 13 gramsH2O vapor capacity: 52 grams at 25 degrees Celsius 13 grams at 10∘C52 grams at 30∘CFormula used to find the dew point:$$\dfrac{13}{52}=\dfrac{(A*3\pi)/(ln100)}{(17.27-A)}$$$$\frac{1}{4}=\dfrac{(A*3\pi)/(ln100)}{(17.27-A)}$$

Where A is the constantDew Point:It is the temperature at which air becomes saturated with water vapor when the temperature drops to a point where dew, frost or ice forms. To solve this question, substitute the given data into the formula.$$13/52=\dfrac{(A*3\pi)/(ln100)}{(17.27-A)}$$$$13(17.27-A)=3\pi A(ln100)$$By simplifying the above expression, we get$$A^2-17.27A+64.78=0$$Using the quadratic formula, we get$$A=9.9,7.4$$

The dew point is 7.4 since it is less than 10°C.More than 100:The term "More than 100" has not been used in the question provided.

To know more about temperature  visit:

https://brainly.com/question/7510619

#SPJ11

Familiarizing and determining the reactant and product of a chemical reaction is important because reactant and product are the two main component of the chemical reaction.

All the chemical reactions involves the reactant and product. chemical reactions are comprised of reactant and product. Reactants are substances that start a chemical reaction. Products are substances that are produced in the reaction. The relationship between reactants and products in a chemical reaction can be represented by a chemical equation that has this general form,

          Reactants → Products

The chemical formula allows us to give the scientific name to the substance. The chemical formula allows us to predict the nature and properties of the substance. The chemical formula allows us to write balanced chemical equations.

To learn more about Chemical reaction please visit:

https://brainly.com/question/11231920

#SPJ4

Answer:

a.) It matches the universal pH indicator and is indicating the proper pH.

Explanation:

it says its the answer.

Answer:

Explanation:

An object is thrown vertically from the ground upwards with a speed of 10 m/s. Considering g = 10 m/s2, the maximum height that the object reaches from the ground, in meters, will be:

a) 15.0.

b) 10.0.

c) 5.0.

d) 1.0.

e) 0.5.

contaminants from your community can flow through runoff into a river basin.

Contaminants from your community affect a river basin that is miles away could runoff can carry pollutants from your neighborhood into a river basin.

Community is defined as a social community that shares characteristics like geography, rules, beliefs, values, or identities.  Community is important because they are frequently a significant source of social connection and a sense of belonging, strong communities are essential. Living a fulfilling life requires being a part of a group of people who share similar attitudes, values, and aspirations.

Contaminants are defined as a substance that, whether unintentionally or on purpose introduced to air, water, soil, or food, becomes detrimental to humans or other living things on a biological, chemical, physical, or radiological level. Chemical, physical, and biological pollution are the three different types.

Thus, contaminants from your community affect a river basin that is miles away could runoff can carry pollutants from your neighborhood into a river basin.

To learn more about community, refer to the link below:

https://brainly.com/question/19515708

#SPJ2

Answer: 2C2H2 + 5O2 → 4CO2 + 2H2O

Explanation:

Solution :

\($H_2 +I_2\rightleftharpoons 2HI$\)

Initial concentration               Equilibrium concentration           \($K_c=\frac{[HI]^2}{[H_2][I_2]}$\)

  (mol/L)                                           (mol/L)

\($[H_2]$\)                 \($[I_2]$\)            \($[HI]$\)    \($[H_2]$\)                 \($[I_2]$\)            \($[HI]$\)

\($2.4 \times 10^{-2}$\)     \($1.38 \times 10^{-2}$\)  0     \($1.14 \times10^{-2}$\)    \($0.12 \times 10^{-2}$\)  \($2.52 \times 10^{-2}$\)        46.42

\($2.4 \times 10^{-2}$\)     \($1.68 \times 10^{-2}$\)  0     \($0.92 \times10^{-2}$\)    \($0.20 \times 10^{-2}$\)  \($2.96 \times 10^{-2}$\)        47.61

\($2.4 \times 10^{-2}$\)     \($1.98 \times 10^{-2}$\)  0     \($0.77 \times10^{-2}$\)    \($0.31 \times 10^{-2}$\)  \($3.34 \times 10^{-2}$\)        46.73

\($2.4 \times 10^{-2}$\)     \($1.76 \times 10^{-2}$\)  0     \($0.92 \times10^{-2}$\)    \($0.22 \times 10^{-2}$\)  \($3.08 \times 10^{-2}$\)        46.86

\($0$\)                  \($0$\)        \($3.04 \times 10^{-2}$\)     \($0.345 \times10^{-2}$\)    \($0.345 \times 10^{-2}$\)  \($2.35 \times 10^{-2}$\) 46.39

\($0$\)                  \($0$\)        \($7.58 \times 10^{-2}$\)     \($0.86 \times10^{-2}$\)    \($0.86 \times 10^{-2}$\)  \($5.86 \times 10^{-2}$\)     46.42

Average \($K_c=46.738$\)

Triple orbital degeneracy refers to a situation where there are three orbitals that have the same energy level. This can give rise to interesting phenomena in chemistry and physics. For example, in a magnetic field, triple degeneracy can lead to the splitting of the energy levels into three distinct levels, known as Zeeman splitting.

They can help us understand the behavior of electrons in atoms and molecules and can have applications in fields such as quantum computing and materials science. Additionally, triple degeneracy can play a role in the electronic structure of certain molecules and can affect the way that they react with other molecules or undergo chemical transformations. Triple orbital degeneracy gives rise to a situation in which three orbitals of the same energy level are available for electrons to occupy. This means that electrons in these degenerate orbitals can be arranged in various ways while maintaining the same energy state. As a result, this can lead to a greater number of possible electron configurations and increased stability in certain molecular or atomic systems.

learn more about Triple orbital degeneracy here.

https://brainly.com/question/14762858

#SPJ11

When the student did the experiment with silver and copper sulfate solution, the temperature of the solution likely increased.

This is because silver and copper are both good conductors of heat, and when they are in solution together, they can transfer heat energy from one another. As the two substances mix, the heat energy is distributed evenly throughout the solution, causing the temperature to rise.

The exact amount of temperature change will depend on factors such as the amount of silver and copper present, the initial temperature of the solution, and the duration of the experiment. It is important to note that the temperature change could be significant enough to affect the outcome of the experiment, so careful monitoring of the temperature is crucial to accurate results.

More on temperature: https://brainly.com/question/31634417

#SPJ11

Answer:

The equation is an example of combination/synthesis.

Explanation:

A + B → AB

The definition of synthesis is the act of simpler compounds being combined together to make a more complex compound. Both A and B are being combined to each other to make AB. So, the given equation shows a synthesis reaction.

If a cell culture has 3 x 105 cells per ml , and the culture flasks hold 75 ml of culture each and you have 12 flasks, The bond between K⁺ and Cl⁻ ions is an ionic bond.

The main contact that takes place in ionic compounds is called ionic bonding, and it involves the electrostatic attraction between two atoms or ions with dramatically differing electronegativities. Along with covalent and metallic bonds, it is one of the most prevalent types of bonds. Ions are atoms, or collections of atoms, that have an electrical charge. Ions with a negative charge are produced by gaining electrons in atoms (called anions). Ions with a positive charge are created when atoms lose their electrons (called cations).

Electrovalence, as opposed to covalence, is the name for this transfer of electrons. The cation is a metal atom in the most straightforward scenario, while the anion is a nonmetal atom, however these ions can have more complex chemical compositions.

To learn more about ionic bond from the given link:

https://brainly.com/question/957239

#SPJ4

The volume of calcium hydroxide solution required to titrate 35.0 mL of 0.440 M phosphoric acid to the third equivalence point is 87.5 mL.

In the given case, we have to calculate the volume of 0.530 M calcium hydroxide solution required to titrate 35.0 mL of 0.440 M phosphoric acid to the third equivalence point.

The chemical equation for the reaction of phosphoric acid with calcium hydroxide is given below:

H₃PO₄ + Ca(OH)₂ → Ca(H₂PO₄)₂ + 2H₂O

Molar mass of H₃PO₄ = 3(1.008) + 1(30.974) + 4(15.999)

                                    = 98.0 g/mol

Molar mass of Ca(OH)₂ = 1(40.078) + 2(15.999)

                                         = 74.1 g/mol

Number of moles of H₃PO₄ in 35.0 mL of 0.440 M

phosphoric acid= Molarity × Volume(in liters)

= 0.440 × (35.0/1000)

= 0.0154 mol

Number of moles of Ca(OH)₂ required to react completely with 0.0154 mol of H₃PO₄= 0.0154 mol

Number of moles of Ca(OH)₂ present in the solution

= Molarity × Volume(in liters)

= 0.530 × Volume

Calcium hydroxide will react with phosphoric acid until the third equivalence point is reached.

Ca(OH)₂ + 2H₃PO₄ → Ca(H₂PO₄)₂ + 2H₂O(moles)

0.0154         0.031                0.0464

(Molarity) 0.53              0.53              0.53

(Volume)    V₁                   V₂                         V₃

Equivalence point is the point where the number of moles of two reactants is equal to each other.The number of moles of H₃PO₄ is equal to the number of moles of Ca(OH)₂ at the third equivalence point,

So, 0.0464 mol of Ca(OH)₂ is required to react completely with 0.0154 mol of H₃PO₄  .

Volume of 0.530 M calcium hydroxide solution required to titrate 35.0 mL of 0.440 M phosphoric acid to the third equivalence point

= (0.0464 mol)/(0.530 mol/L)

= 0.0875

L= 87.5 mL (rounded to three significant figures)

Therefore, the volume of 0.530 M calcium hydroxide solution required to titrate 35.0 mL of 0.440 M phosphoric acid to the third equivalence point is 87.5 mL.

Learn more about equivalence point :

brainly.com/question/31484109

#SPJ11

Answer:

-1300. kJ  

Explanation:

We have two equations:

1. P₄(s)       +3O₂(g) ⟶ P₄O₆(s);                 ΔH₁  = -1640.1 kJ

2. P₄O₁₀(s)               ⟶ P₄(s)      + 5O₂(g); ΔH₂ =  2940.1 kJ

From these, we must devise the target equation:

3. P₄O₆(s)  + 2O₂(g) ⟶ P₄O₁₀(s);               ΔH = ?

The target equation has P₄O₆(s) on the left, so you reverse Equation 1.

When you reverse an equation, you reverse the sign of its ΔH.

4. P₄O₆(s)                 ⟶ P₄(s)       +3O₂(g); ΔH₁  =  1640.1 kJ

Equation 4 has P₄ on the right. That is not in the target equation.

You need an equation with P₄ on the left, so you reverse Equation 2.  

5. P₄(s)      + 5O₂(g)  ⟶ P₄O₁₀(s);               ΔH₂ = -2940.1 kJ

Now, you add equations 4 and 5, cancelling species that appear on opposite sides of the reaction arrows.

When you add equations, you add their ΔH values.

You get the target equation 3:

4. P₄O₆(s)                      ⟶ P₄(s)        + 3O₂(g);      ΔH₁ =   1640.1 kJ

5. P₄(s)       + 2(5)O₂(g) ⟶ P₄O₁₀(s);                       ΔH₂ = -2940.1 kJ

3. P₄O₆(s)   + 2O₂(g)     ⟶ P₄O₁₀(s);                       ΔH   = -1300.  kJ

ΔH for the reaction is -1300. kJ

Answer:

The answer is 4778.4 cm (cubed)

Explanation:

V = (πr(squared)) x (h/3)

V = (π x 13(squared)) x (27/3)

V = 530.9291585 x 9

V = 4778.4

Answer:

D: Chlorine( I may be wrong my chemistry year was a nightmare)

The awnser is chlorine (Cl) trust me

Answer:

cinder cone: made of pieces of lava

shield volcano: wide summit, gentle slope

volcanic soil: rich in nutrients

caldera: bowl shaped depression

lava plateau: material fills in valleys

Explanation:

it’s right

Answer:

Caldera, Bowl-Shaped depression

Shield volcano, Wide summit, Gentle slope

Lava plateau, Material fills in valleys

Volcanic soil, Rich nutrients

Cinder Cone, Made of pieces of lava

Explanation:

Got it right on edge

Answer:

1.4×10²⁴ atoms

Explanation:

Moles of any element can easily be converted into atoms using the conversion factor 6.02*10²³ atoms per mole.  Since we have 2.3 moles of lead, we would multiply 2.3 moles by the conversion factor to change the units into atoms using a process called dimensional analysis.

(I recommend watching The Organic Chemistry Tutor's video on dimensional analysis)

If we input this into our calculator, we get 1.4×10²⁴ atoms with sig figs (significant figures), since the original value given also has 2 sig figs.  This is easily applicable to similar sorts of problems.  Hope this helps.