which of the following most likely happens when the temperature of gas increases

a. The number of collision of gas particles remains the same

b. The number of collisions of gas particles increases

c. The pressure of gas remains the same

d. The pressure of gas decreases

The melting range of both crude and recrystallized solids is important because it provides information about the purity and identity of the substance and can indicate the presence of impurities or different forms of the compound.

The melting range is the temperature range over which a solid substance transitions from a solid to a liquid state. It is an essential property used in the characterization and identification of substances. For crude solids, which are typically impure and contain various impurities, the melting range can provide valuable information about the purity of the sample. Impurities present in the crude solid can lower the melting point and broaden the melting range. Therefore, a wide or lower-than-expected melting range for a crude solid indicates the presence of impurities.

Recrystallization is a purification technique used to obtain a more pure form of a substance. The melting range of a recrystallized solid is important because it serves as a criterion for assessing the success of the purification process. A narrower and higher melting range for a recrystallized solid indicates a higher degree of purity, as impurities are typically removed during the recrystallization process.

In summary, the melting range of both crude and recrystallized solids is significant as it provides information about the purity and identity of the substance. It allows for the detection of impurities in crude solids and serves as a measure of purification success in recrystallized solids.

Learn more about Recrystallization here: https://brainly.com/question/30820707

#SPJ11

Answer:National Integrated Ballistic Information Network

Explanation:

Answer:

National Integrated Ballistic Information Network

Explanation:

gradpoint

Answer:

I think B sorry if wrong

Explanation:

have a good day

The new volume of the balloon at 17°C and 0.8 atm is approximately 434.5 mL.

The combined gas law put together both Boyle's Law, Charles's Law, and Gay-Lussac's Law.

It is expressed as:

\(\frac{P_1V_1}{T_1} = \frac{P_2V_2}{T_2}\)

Given that:

Plug the given values into the combined gas law formula and solve for the final volume.

\(\frac{P_1V_1}{T_1} = \frac{P_2V_2}{T_2}\\\\P_1V_1T_2 = P_2V_2T_1\\\\V_2 = \frac{P_1V_1T_2}{P_2T_1} \\\\V_2 = \frac{1.0atm\ *\ 350mL\ * \ 290.15K}{0.8atm\ *\ 292.15K } \\\\V_2 = 434.5\ mL\)

Therefore, the final volume is approximately 434.5 mL.

Learn more about the combined gas law here: https://brainly.com/question/27403107

#SPJ1

Silver (Atomic Mass) :- 107.8682 u

Answer:

Atomic Number: 47

Atomic Mass: 107.8682 u

Answer:

B. Shape would be your answer.

Explanation:

You can't measure something based on its shape, but you can measure something based on its, mass, volume, and weight.

Hope this helps.

Considering the Boyle's law, the resulting volume if the pressure were increased to 3.9 atm and the temperature did not change is 4 L.

As the volume increases, the particles (atoms or molecules) of the gas take longer to reach the walls of the container and therefore collide less times per unit of time against them. This means that the pressure will be lower because it represents the frequency of shocks of the gas against the walls. In this way, pressure and volume are related, determining Boyle's law that says:

"The volume occupied by a given mass of gas at constant temperature is inversely proportional to the pressure"

Boyle's law is expressed mathematically as:

P×V=k

Considering an initial state 1 and a final state 2, the following holds:

P₁×V₁=P₂×V₂

In this case, you know:

Replacing in the Boyle's law:

1.3 atm× 12 L=3.9 atm× V₂

Solving:

(1.3 atm× 12 L)÷3.9 atm= V₂

4 L= V₂

The new volume will be 4 L.

Learn more about Boyle's law:

brainly.com/question/4147359

#SPJ1

Answer:

85g

Explanation:

To convert the moles of a substance to grams we need to know the molar mass of the substance. We, as first, must obtain the molar mass of (NH₄)₂S as follows:

There are 2 atoms of N, 8 of H and 1 of S:

N = 2*14g/mol = 28g/mol

H = 8*1g/mol = 8g/mol

S = 1*32g/mol = 32g/mol

Molar mass: 68g/mol

That means 1 mole of (NH₄)₂S has a mass of 68g.

1.25moles have a mass of:

1.25moles * (68g/mol) =

The molarity of calcium hydroxide if 15 ml of the solution is neutralized by 15.8 ml of. 90M phosphoric acid​ is 0.22 M.

The balanced chemical equation for the reaction between calcium hydroxide and phosphoric acid is:

Ca(OH)₂ + H₃PO₄ → Ca₃(PO₄)₂ + 2H₂O

The molar ratio of calcium hydroxide to phosphoric acid is 1:3.

The volume of the phosphoric acid solution is 15.8 mL and the molarity of the phosphoric acid solution is 0.90 M.

Use the following equation to calculate the moles of phosphoric acid:

moles of H₃PO₄ = molarity × volume

moles of H₃PO₄ = 0.90 M × 15.8 mL

moles of H₃PO₄ = 14.22 mmol

Since the molar ratio of calcium hydroxide to phosphoric acid is 1:3, the moles of calcium hydroxide is 1/3 of the moles of phosphoric acid.

moles of Ca(OH)₂ = moles of H₃PO₄ / 3

moles of Ca(OH)₂ = 14.22 mmol / 3

moles of Ca(OH)₂ = 4.74 mmol

Use the following equation to calculate the molarity of calcium hydroxide:

molarity of Ca(OH)₂ = moles of Ca(OH)₂ / volume

molarity of Ca(OH)₂ = 4.74 mmol / 15 mL

molarity of Ca(OH)₂ = 0.28 M

Therefore, the molarity of calcium hydroxide is 0.22 M.

Find out more on molarity here: https://brainly.com/question/30404105

#SPJ1

When heated, the water got bigger. Because the water was so salty, salt crystallised on the surface of the container. Because the water cannot hold much heat, the bottom was able to immediately warm up.

A estimated estimate of the evaporation process of water is 3.5 kJ/kg, or 40.8 kJ/mol. The opposite of condensation is the process of vaporisation. The condensate heat is described as the heat released whenever one atom of the compound polymerizes at its boiling point of water under normal pressure.

Water vaporisation heat is approximately 2,260 kJ/kg, or 40.8 kJ/mol. Condensation is the process that vaporisation is the opposite of. The heat emitted when one mole of a substance condenses now at boiling point under normal pressure is known as the heat of condensation.

To know more about crystallised visit:

https://brainly.com/question/23122377

#SPJ1

Answer:

b

Explanation:

Answer:

The particle theory states that the particles of a substance spread out as they gain energy when heated. Thus, the particles take up more space, which means that the density of the substance decreases. It is almost always true that, for each pure sub­ stance (for example, gold), the density of its solid state is greater than the density

Explanation:

Answer:

The Aufbau Principle

Explanation:

In the ground state of an atom or ion, electrons fill atomic orbitals of the lowest available energy level before occupying higher-energy levels.

Answer:

Aufbau principle

Explanation:

edge 2021

Answer:

c

Explanation:

Reaction rate, in chemistry, the speed at which a chemical reaction proceeds.if you're studying the same thing I am then that would be it

Answer: D

Explanation:

Complete neutralization is defined as  when a strong acid is mixed with a strong base.

In case of strong acid you can take Hydrochloric Acid (HCL) and in case of strong base you can take the example of Sodium Hydroxide (NaOH). When the mixture dissolved in water (H2O) they(HCL, NaOH) completely disassociates.

Diprotic acid donate two proton per molecule. Ex- Sulphuric Acid (H2SO4)

Now according to question,

AH2+2NaOH → Na2A + 2H2O

n(AH2)=0.1715 L *0.75 mol NaOH* 1 mol AH2/ 2 mol NaOH = 0.0643125 mol

m = 6.50g / 0.0643125 mol

= 101.068999 g/ mol

To know more about complete neutralisation here :

https://brainly.com/question/20711323?referrer=searchResults

#SPJ4

Answer: Western USA.

Answer:

the answer is the question itself

Explanation:

The two basic geologic processes which contributed to the formation of folded mountain ranges like in Glacier National Park include:

This is a geologic process which involve materials in the earth being washed away and transported to other parts by water, wind etc.

In the case of Glacier National Park, ice erodes the mountain thereby resulting in the folding of the sedimentary rocks.

Read more about Glacial erosion here https://brainly.com/question/8880387

#SPJ1

Today, China has the worst acid deposition problem, primarily because of coal-fired electrical and industrial plants .

"Although part of your question is missing , you might be referring to this full question :  Today, ________ has the worst acid deposition problem, primarily because of ________.

E) China; coal-fired electrical and industrial plants "

Acid deposition is caused when sulphur dioxide (SO2) and nitrogen oxides (NOx) are emitted into our atmosphere. These chemicals SO2 and NOx, react with water, oxygen and other chemicals to form both sulphuric and nitric acids. These then mix with water and other materials before falling to the ground.

Most of the compounds (SO2 and NOx) found in acid rain come from the burning of fossil fuels, even though there is a small portion that comes from natural sources such as volcanoes.

Major sources of SO2 and NOx in the atmosphere are burning of fossil fuels to generate electricity. In around two-thirds of SO2 and one-fourth of NOx come from electric power generators, vehicles and heavy equipment and industries such as oil refineries manufacturing etc.

SO2 and NOx can be blown over very long distances and across borders meaning that acid rain is not just a problem for the people who live close to these sources but everyone.

To learn more about Acid deposition -

https://brainly.com/question/1037952

The refrigerator would use 180 kilowatt-hours (kWh) of electric energy over the course of 30 days, assuming it runs for 12 hours each day.

To calculate the kilowatt-hours (kWh) of electric energy used by the refrigerator in 30 days, we need to multiply the power rating by the total running time.

Given:

Power rating of the refrigerator = 500 W

Running time per day = 12 hours

Number of days = 30

First, we need to convert the power rating from watts to kilowatts:

Power rating = 500 W / 1000 = 0.5 kW

Next, we calculate the total energy used in kilowatt-hours (kWh) over the 30-day period:

Energy used = Power rating × Running time × Number of days

Energy used = 0.5 kW × 12 hours/day × 30 days

Energy used = 180 kWh

Therefore, the refrigerator would use 180 kilowatt-hours (kWh) of electric energy over the course of 30 days, assuming it runs for 12 hours each day.

For more question on energy

https://brainly.com/question/29339318

#SPJ8

Coordination isomerism in compounds containing both anionic and cationic complexes can be considered to occur by the exchange of some of the ligands from cationic to anionic moieties. Therefore, there are two complex compounds bonded together, one with a negative charge and the other with a positive charge.

In coordination isomers, the anion and cation complexes of the coordination compound exchange one or more ligands. For example, the compounds [Co(NH3)6] [Cr(C2O4)3] and [Co(C2O4)3] [Cr(NH3)6] are coordination isomers.

Learn more about coordination isomerism:

brainly.com intext: answer expert verified

#SPJ4

Answer:

It would be able to function because the ph of the environment is similar to that of intestine.

Explanation:

The pH of the small intestine is eight. The enzyme would be able to function because enzyme C functions best at a Ph range around 8.

Answer:

I think A does because there are so many letters in their so a

(i) The concentration of the standard sodium carbonate solution is 0.05 mol/l.

(ii) The concentration of the hydrochloric acid is 0.0925 mol/l.


To solve this problem, we'll need to use the formula for molarity, which is defined as the number of moles of solute per liter of solution.

First, let's find the concentration of the standard sodium carbonate solution in mol/L. We know that the solution contains 2.65 g of sodium carbonate and has a volume of 500 mL. We also know that the molar mass of sodium carbonate is 106 g/mol. We can use this information to calculate the number of moles of sodium carbonate in the solution:

2.65 g sodium carbonate / 106 g/mol = 0.025 mol sodium carbonate

The concentration of the solution in mol/L is equal to the number of moles of solute divided by the volume of the solution in liters. We can convert the volume of the solution from mL to L by dividing by 1000:

Concentration = 0.025 mol / (500 mL / 1000 mL/L) = 0.05 mol/L

Now let's find the concentration of the hydrochloric acid in mol/L. We know that 20 mL portions of the sodium carbonate solution required 18.50 mL of hydrochloric acid when titrated using a methyl orange indicator. We also know that the volume of hydrochloric acid used was 18.50 mL and the volume of the sodium carbonate solution was 20 mL.

We can use this information to calculate the concentration of the hydrochloric acid:

Concentration = (Volume of hydrochloric acid / Volume of sodium carbonate solution) * Concentration of sodium carbonate solution

= (18.50 mL / 20 mL) * 0.05 mol/L = 0.0925 mol/L

Therefore, the concentration of the standard sodium carbonate solution is 0.05 mol/L and the concentration of the hydrochloric acid is 0.0925 mol/L.

To learn more calculations about sodium carbonate:

https://brainly.com/question/14957892

The quantity, in moles, of oxygen is consumed when 717. 4 kJ of energy is evolved from the combustion of a mixture of H₂ (g) and O₂ (g) is 1.255 moles.

Combustion is defined as a chemical process in which a substance reacts with oxygen to give off heat. Generally, the substance which undergoes combustion is said to be combustible. It is also known as a fuel. The type of fuel may be solid, liquid or gas. Sometimes, usually light is also given off during the process of combustion, either as a flame or as a glow.

The balanced chemical reaction is given as,

H₂ + 1/2 O₂ → H₂O            ΔH = -285.8 kj

Here energy is released so it is exothermic reaction and here 1 mol of H₂ and the 0.5 mol of O₂ is utilized and the heat released is -285.8kj

0.5 mol O₂ -------------------------> 285.8 kj

? ---------------------------------------> 717.4 kj

= 717.4 × 0.5 / 285.8 = 1.255 moles

Hence, the number of moles of O₂ that is required is 1.255 moles.

Learn more about combustion from the link given below.

https://brainly.com/question/15117038

#SPJ4

According to Aufbau Principle electrons are to be filled in a pattern that is, starting from lower-energy atomic orbitals electrons will be filling into the higher-energy orbitals.

So, electrons will be filled in the 4d orbital before 5d orbital.

Also the electron in 4d orbital will lie closer to the nucleus as compared to the electron in the 5d orbital.

as the principle quantum number for the electron in 4d orbital is 4, which means the electron is present in shell 4, i.e. n=4.

Whereas, the principle quantum number for the electron in 5d orbital is 5, which means the electron is present in shell 5, i.e. n=5.

If we see Neil Bohr's atomic model,

Electrons in 4th shell will be closer to the atomic nucleus than that of electron in 5th shell.

For clarification, you can see the figure.

To know more about Quantum Number :

brainly.com/question/16977590

#SPJ4

Answer:

D.

Explanation:

I just got it right in the test :)

Answer:

112mL

Explanation:

We'll begin by calculating the number of mole in 0.640g of SO2.

This is illustrated below:

Molar mass of SO2 = 32 + (16x2) = 64g/mol

Mass of SO2 = 0.640g

Number of mole of SO2 =.?

Mole = mass /molar mass

Number of mole of SO2 = 0.640/64

Number of mole of SO2 = 0.01 mole

Next, we shall determine the number of mole of O2 required for the reaction. This is illustrated below:

2SO2(g) + O2(g) —> 2SO3(g)

From the balanced equation above,

2 moles of SO2 reacted with 1 mole of O2.

Therefore, 0.01 mole of SO2 will react with = (0.01 x 1)/2 = 0.005 mole of O2.

Therefore, 0.005 mole of O2 is required for the reaction.

Finally, we shall determine the volume of O2 required for the reaction as follow:

Note: 1 mole of a gas occupy 22.4L (22400mL) at stp.

1 mole of O2 occupy 22400mL at stp.

Therefore, 0.005 mole of O2 will occupy = 0.005 x 22400 = 112mL

Therefore, 112mL of O2 is required for the reaction.

Answer:

the answer is C

Explanation:

i did the test on edg and got it right

If molecules of hydrogen, nitrogen, oxygen, and chlorine have the same kinetic energy hydrogen molecule will move the fastest.

Kinetic energy will be defined as:

    K.E = 1/2mv2

In the above-mentioned equation:

   K.E = kinetic energy

   m = mass of gas molecules

   v = velocity of gas molecules

Gases with smaller particle sizes tend to be traveling quicker at a given temperature, which means that they have a greater speed. Kinetic energy enables gas particles to move at different rates, and these speeds are determined by the size of the gas particle.  Hydrogen gas particles are the smallest and hence move at a faster rate, followed by nitrogen gas particles, oxygen gas particles, and chlorine gas particles.

You can also learn about kinetic energy from the following question:

https://brainly.com/question/26472013

#SPJ4