BrainlieSTTTTTT A gas is originally stored at a pressure of 25 atm with a volume of 3 L. If the pressure were increased to 75 atm, what would be the new volume of the gas?
a.8.333 L
b.1 L
c.75 L
d.1 L

Answers

Answer 1

Explanation:

Apply Boyle's Law :-

P1V1 = P2V2

Where P1 is 25 atmV1 is 3LP2 is 75 atmV2 is what we need to find out.

25 × 3 = 75 × V2

[tex]\tt{V_2 = \dfrac{ 25 \times 3}{75}}[/tex]

[tex]\tt{V_2 = \dfrac{75}{75}}[/tex]

So, the answer is d) Part, 1L .

Hope it helps :)


Related Questions

Calculate the potential energy of a block of mass of mass 0.3kg and at a height 2.6m above the ground.(take acceleration due to gravity:10m/s)​

Answers

Explanation:

Mass (m)=0.3 kg

height(h)=2.6 m

acceleration due to gravity (g)=10m/s^2

Potential energy= MGH

=0.3×10×2.6

7.8 J

Give brainliest if u can

The enthalpy (AH) is +624.7 kJ for the following reaction. How would you classify this reaction? (Explain)

SiO2(g) + 3C(s) --> SIC(s) +2CO(g)

A.exothermic: heat is lost by the system
B.endothermic: heat is gained by the system
C.endothermic: heat is lost by the system
D.exothermic: heat is gained by the system

Answers

Answer: The reaction [tex]SiO_{2}(g) + 3C(s) \rightarrow SiC(s) + 2CO(g); \Delta H = +624.7 kJ[/tex] is classified as endothermic: heat is gained by the system.

Explanation:

A process or reaction in which heat is absorbed is called endothermic reaction.

For example, melting of ice is an endothermic process.

For an endothermic reaction the sign of [tex]\Delta H[/tex] is positive which means heat is gained by the system.

Here, the given reaction is as follows.

[tex]SiO_{2}(g) + 3C(s) \rightarrow SiC(s) + 2CO(g); \Delta H = +624.7 kJ[/tex]

A process or reaction in which heat is released is called exothermic reaction.

For example, combustion reaction, freezing of water etc are exothermic process.

For an exothermic reaction the sign [tex]\Delta H[/tex] is negative which means heat is lost by the system.

Thus, we can conclude that the reaction [tex]SiO_{2}(g) + 3C(s) \rightarrow SiC(s) + 2CO(g); \Delta H = +624.7 kJ[/tex] is classified as endothermic: heat is gained by the system.

When two atoms form a molecule, the molecule has lower energy than the two separate atoms. However, when only two atoms are present, they bounce off each other and do not form a molecule. Explain what happens to the energy of the atoms when there are only two atoms and they collide.
DONT GIVE ME A LINK!!

Answers

Answer:

they end up bouncing against each other instead of merging together

Explanation:

In a sample of oxygen gas at room temperature, the
average kinetic energy
of all the balls stays constant. Which postulate of kinetic molecular theory
best explains how this is possible?

Answers

Answer: The Kinetic Molecular Theory of  Matter

Explanation: The answer is: B. Collisions between gas particles are elastic; there is no net gain or loss of kinetic energy.

The Kinetic Molecular Theory of  Matter


Should American drugmakers have to limit acetaminophen pills sold over-the-counter?

Answers

Answer: The agency requires all prescription drugs containing acetaminophen to carry a black box warning that an overdose can result in liver transplant or death. For over-the-counter Tylenol and its generic equivalents, the FDA requires no warning that overdose can be fatal.

Explanation:

^^^^

2.91 moles of aluminum are how many grams(with work)

Answers

2.91 mol Al * ( 26.982 g Al / 1 mol Al) = 78.518 grams
It will be 78.51627558 bec one gram of Al equal 0.037062379468509

What type of molecule is shown below?
H H
| |
H-C-C-0-H
|
Η Η
A. Ether
B. Aldehyde
C. Ketone
D. Alcohol

Answers

The type of molecule that is shown is D. Alcohol

The type of molecule which is shown in the given question is alcohol, due to presence of hydroxyl group.

What are functional groups?

Funcional groups are those specific groups which after attaching to any compound changes the property of that compound and then that compound will known by the propeties of that functional group.

Given molecule has the molecular structure CH₃-CH₂-OH, means in this molecule hydroxyl group is present which defines the general properties of alcohol.

Hence given molecule is an alcohol.

To know more about functional groups, visit the below link:

https://brainly.com/question/493841

What is the number of moles of Sodium Chloride (NaCl) that is present in 29.22g sample of it?

Answers

there are 0.5 moles of NaCl present in a 29.22g sample.

to find moles of a compound you would look at the periodic table to find the mass. in this case, the mass of NaCl is 58.44 g/mol. now, you divide the sample mass of 29.22g by 58.44 g/mol. the grams will cancel each other out and you’re left with 0.5 mol in that sample

hope this helps!

Answer:

[tex]\boxed {\boxed {\sf 0.5000 \ mol \ NaCl}}[/tex]

Explanation:

We are asked to convert grams to moles. We must use the molar mass or the grams in 1 mole of a substance. These values are found on the Periodic Table as the atomic mass, but the units are grams per mole (g/mol) instead of atomic mass units (amu).

We are given the compound sodium chloride or NaCl. Look up the molar masses of the individual elements.

Na:  22.9897693 g/mol Cl: 35.45 g/mol

The formula for the compound does not contain any subscripts, so there is 1 mole of each element in 1 mole of the compound. Add the molar masses together to find sodium chloride's molar mass.

NaCl: 22.9897693 + 35.45= 58.4397693 g/mol

Now we can use the molar mass to create a ratio. We know there are 58.4397693 grams of NaCl in 1 mole of NaCl.

[tex]\frac {58.4397693 \ g \ NaCl}{ 1 \ mol \ NaCl}[/tex]

Multiply by the number of grams provided in the problem: 29.22

[tex]29.22 \ g\ NaCl*\frac {58.4397693 \ g \ NaCl}{ 1 \ mol \ NaCl}[/tex]

Flip the ratio so the units of grams of NaCl cancel.

[tex]29.22 \ g\ NaCl*\frac { 1 \ mol \ NaCl}{58.4397693 \ g \ NaCl}[/tex]

[tex]29.22*\frac { 1 \ mol \ NaCl}{58.4397693}[/tex]

[tex]\frac {29.22}{58.4397693} \ mol \ NaCl[/tex]

[tex]0.5000019738 \ mol \ NaCl[/tex]

The original measurement of grams has 4 significant figures, so our answer must have the same. For our answer, that is the ten-thousandth place. The 0 to the right of this place (0.5000019738) tells us to leave the 0 in the ten-thousandth place.

[tex]0.5000 \ mol \ NaCl[/tex]

There are approximately 0.5000 moles of sodium chloride in a 29.22 gram sample of sodium chloride.

What volume would be occupied by 16.0 g of CH4 at 00C and 760 mmHg?

Answers

Answer:

22.4 L

Explanation:

We'll begin by calculating the number of mole in 16.0 g of CH₄. This can be obtained as follow:

Molar mass of CH₄ = 12 + (4×1)

= 12 + 4

= 16 g/mol

Mass of CH₄ = 16 g

Mole of CH₄ =?

Mole = mass / molar mass

Mole of CH₄ = 16 / 16

Mole of CH₄ = 1 mole

Finally, we shall determine the volume of the gas. This can be obtained as follow:

Number of mole of CH₄ (n) = 1 mole

Pressure (P) = 760 mmHg = 1 atm

Temperature (T) = 0°C = 273 K

Gas constant (R) = 0.0821 atm.L/Kmol

Volume (V)?

PV = nRT

1 × V = 1 × 0.0821 × 273

V = 22.4 L

Therefore, the volume of the gas is 22.4 L


Select the correct answer.
A compound has an empirical formula of C2H5. What is true about this empirical formula?
ОА It models the structure of the compound.
ОВ. It shows the ratio of elements in the compound.
Ос. . It gives the mass of each atom in the compound.
OD. It indicates the number of atoms in the compound.
O E. It describes only this one compound.


Answers

Answer: OB

Explanation:

The empirical formula of an element is the simplest formula of an element which shows the ratios of atoms of the each element present in a molecule of a compound .

What type of erosion and deposition is not a major force in Texas

Answers

Best answers I could come up with
Gravity
Glaciers
Wind
Water

If you hear a weather report say that a low pressure system is coming in, what kind of weather can you expect?

A
wind

B
polluted air

C
precipitation

D
heat

Answers

The answer is A wind

Answer the following questions using the chemical equation below:

6CO2 + 6H2O => C6H12O6 + 6O2

3. How many total atoms are on the product side?

4. How many molecules of water are on the reactant side?

Answers

3. 36 atoms total on the product side
4. Six molecules of water on the reactant side

what are the 5 similarities between acid and alkalis ​

Answers

Explanation:

Acids and alkalis both contain ions. Acids contain lots of hydrogen ions, which have the symbol H+. Alkalis contain lots of hydroxide ions, symbol OH-. Water is neutral because the number of hydrogen ions is equal to the number of hydroxide ions

Answer:

cids and bases both react with water and a lot of acids and bases are soluble in nature. Both acids and bases are electrolytes which means that they're good conductors of electricity. Acids and bases both produce ions in water solution. Acids release hydrogen ions (H+) whereas Bases release hydroxide ions (OH–).

Explanation:

what is Nylon 6-6 made of..?​

Answers

Answer:

nylon 66 is made of two monomers each containing 6 carbon atoms, hexamethylenediamine and adipic acid.

How much energy is required to raise the temperature of a 300.0

gram block of lead from 22.3°C to 59.9°C? The specific heat of lead is

0.129 J/gºC.

Answers

Answer:

Q = 1455.12 Joules.

Explanation:

Given the following data;

Mass = 300 grams

Initial temperature = 22.3

Final temperature = 59.9°C

Specific heat capacity = 0.129 J/gºC.

To find the quantity of energy;

[tex] Q = mcdt[/tex]

Where,

Q represents the heat capacity.

m represents the mass of an object.

c represents the specific heat capacity of water.

dt represents the change in temperature.

dt represents the change in temperature.

dt = T2 - T1

dt = 59.9 - 22.3

dt = 37.6°C

Substituting the values into the equation, we have;

[tex] Q = 300*0.129*37.6 [/tex]

Q = 1455.12 Joules.

What is the connection between iozination energy, electronegativity, and electron affinity of elements

Answers

Answer:

Explanation:

The three of them increase from left to right across the periods of the periodic table, and at the same time, they decrease from up to down across the groups of the periodic table.

Ionization Energy is defined as the energy required to remove the atom of an electron.

Electron affinity is defined as the change in energy when electron is added to a negative ion.

Electronegativity is the ability of an atom to attract other atoms to itself.

What causes the "heat island" effect?
a. heat produced from a large number of people

b. the materials used in building cities retain heat

c. the large amount of reflected light from glass windows

d. all of the above
Please select the best answer from the choices provided
A
B
C
D​

Answers

D all of the above answers are correct

If you have 8 g of a radioactive element there will be Of the radioactive element left after one half life

Answers

Answer:

4g of the radioactive element present

Explanation:

Radioactive elements are atoms that are unstable in normal conditions and are converted in another different atoms.

1 half life express the time that is need to decay the half of the initial amount of the radioactive element.

If initially we have 8g of the radioactive element, after 1 life we will have 8g/2 =

4g of the radioactive element present

If the half-life of a decaying isotope is 10 years, which statement is true after
20 years?

Answers

Answer:

A. There are more daughter nuclei than parent nuclei in a sample.

Explanation:

There are more daughter nuclei than parent nuclei in a sample. Hence, option A is correct.

What is half-life?

The half-life of a radioactive element or isotope is the time taken for half of the substance to decay.

If the half-life of a decaying isotope is 10 years, after 8 years, less than the total mass of the original isotope will decay since 8 years is less than 10 years.

Therefore, we can conclude that, if the half-life of a decaying isotope is 10 years, after 8 years, there will be more parent nuclei than daughter nuclei in a sample.

Learn more about half-life here:

https://brainly.com/question/24710827

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Awnser all of them if you can its really EASY im feelin generous today 30 pts

Answers

Answer: 1. Synthetic Substance or Synthetic compound 2. Oil 3. Biofuels 4. Salt and Sugar 5. medicine 6. Synthetic 7. Background Knowledge and Visualizing

Explanation: Hope this helps! Good luck!

Answer:

1= synthetic substance

2= natural gas

3= alcohol

4=artificial musks

5= medicine

6= synthetic

7=Questioning the Text

Explanation: If  my answers are correct please mark me as a brainlist.

A radioisotope has a half-life of 5 minutes. What fraction of material would remain after
half an hour?

Answers

It should be 1/32 after half an hour.

Which type of circuit has more than one path?

Answers

Answer:

parallel circuit

Explanation:

Hope this is right!!

The Lewis diagram for AlF3 is:
:F:
The electron-pair geometry around the Al atom in AlF3 is
There is/are
lone pair(s) around the central atom, so the geometry of AlF3 is
Submit Answer
Retry Entire Group
9 more group attempts remaining

Answers

Answer:

25,000 pairs

Explanation:

What is the best explanation for the fact that Styrofoam will not dissolve in water, but Styrofoam will dissolve in acetone?

1.styrofoam is polar and water is nonpolar

2.styrofoam is nonpolar and water is polar

3.Styrofoam is polar and water is polar

4.styrofoam is nonpolar and water is nonpolar

Answers

the answer would be the first

2 H2(g) + O2 (g) --> 2 H20 (1)
How many moles of hydrogen gas do you need to make 2 moles of liquid water?

Answers

Answer:

4moles of hydrogen atoms

Explanation:

The second conversion factor reflects the number of atoms contained within each molecule. Two water molecules contain 4 hydrogen atoms and 2 oxygen atoms. A mole of water molecules contains 2 moles of hydrogen atoms and 1 mole of oxygen atoms.

Magnesium metal reacts with oxygen according to the equation: Mg(s) + O2(g) → 2MgO2(s)

Which of the following would increase the rate of the reaction?

grinding the magnesium metal into a fine powder

packing the magnesium tightly at the bottom of the container

forming the magnesium metal into the shape of a sphere

forming the magnesium metal into single, large cube

Answers

Answer:

Grinding the magnesium metal into a fine powder. I took the test and got it right.

Which forward reaction shows an increase in entropy (disorder)?explain

A.H2(g) + CuO (s) --> H2O(l) + Cu(s)
B.HCl(g) + NH3(g) --> NH4Cl(s)
C.CaCO3(s) -> CaO(s) + CO2g)
D.H2O(g) + O2(g) --> 2H2O)

Answers

Explanation:

Entropy also increases when solid reactants form liquid products. Entropy increases when a substance is broken up into multiple parts. The process of dissolving increases entropy because the solute particles become separated from one another when a solution is formed. Entropy increases as temperature increases. S = entropy

k_{b} = Boltzmann constant

\ln = natural logarithm

\Omega = number of microscopic configurations

What can we do to protect our oceans ?

Answers

pick up plastic, reduce waste, reduce pollutants
Around Home

1. Conserve Water

Use less water so excess runoff and wastewater will not flow into the ocean.
2. Reduce Pollutants

Choose nontoxic chemicals and dispose of herbicides, pesticides, and cleaning products properly.
3. Reduce Waste

Cut down on what you throw away.
Around Town

4. Shop Wisely

Choose sustainable seafood. Buy less plastic and bring a reusable bag.
5. Reduce Vehicle Pollution

Use fuel efficient vehicles, carpool or ride a bike.
6. Use Less Energy

Choose energy efficient light bulbs and don't overset your thermostat.
On the Water

7. Fish Responsibly

Follow "catch and release" practices and keep more fish alive.
8. Practice Safe Boating

Anchor in sandy areas far from coral and sea grasses. Adhere to "no wake" zones.
9. Respect Habitat

Healthy habitat and survival go hand in hand. Treat with care.
10. Anytime, Anywhere

Volunteer

Volunteer for cleanups at the beach and in your community. You can get involved in protecting your watershed too!

Hope this helps

write in the chart which molecule is the acid,base, conjugate base,conjugate acid from the equation and watching the H+ movement
1 H2CO3 + H2O--- H3O+ +HCO3-
2 H3PO4 + H2O--- H2PO- +H3O+
3. HCO3- + H2O---H2CO3 +OH-
4 HNO3 +H2O---NO3- +H3O+​

Answers

Answer:

When H2O acts as a base, it gains one H, which forms its conjugate acid, H30. ... Write the formula for the conjugate base for each of the following acids: a. ... H3PO4(aq) + H2O(l) 7 H2PO4 (aq) + H3O+(aq) ... CO32-(aq) + H2O(1) 2 HCO3 (aq) + OH(aq) ... balanced equation for the reaction of the ammonium ion with water.

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