Chemistry High School

A sample of gas as a volume of 425 mL at 25°C at and 760 tour what volume with this gas sample have at STP

Answers

Answer 1

Answer:

[tex]\Rightarrow V_2 = 389mL[/tex]

Explanation:

To solve this question, we could use Charles' law since both the number of mole and pressure are constant

At STP pressure P = 760 tor and Temperature = 273K

V1 =425mL, T1 =298K and T2 =273K

and [tex]\frac{V_1}{T_1} =\frac{V_2}{T_2}[/tex]

[tex]\Rightarrow V_2 =T_2\times\frac{V_1}{T_1}[/tex]

[tex]\Rightarrow V_2 =273\times\frac{425}{298}[/tex]

Therefore, [tex]\Rightarrow V_2 = 389mL[/tex]

Related Questions

How many joules are required to change 40 grams of water to steam at the boiling point?

Answers

Answer:

2260 J

Explanation:

For water at its boiling point of 100 ºC, the heat of vaporization is 2260 J g-1. This means that to convert 1 g of water at 100 ºC to 1 g of steam at 100 ºC, 2260 J of heat must be absorbed by the water.

Explain why there would be a need for lithium batteries?

Answers

Answer:

The much higher power density offered by lithium ion batteries is a distinct advantage. Electric vehicles also need a battery technology that has a high energy density. ... Lithium ion cells is that their rate of self-discharge is much lower than that of other rechargeable cells such as Ni-Cad and NiMH forms.

Put this into your own words or teachers will make you redo it

Please help due tonight!!! NO LINKS PLEASE they will be flagged.

When 57,816 J of heat are transferred to a 240-g of an unknown metal, its temperature increases from 32⁰C to 164⁰ C. Identify the metal.

If there is a link and you can't answer please put it in the comments I really need help!!!

Answers

Answer:

Carbon fiber if I'm correct

Choose the mixed number that is equivalent to $ 5.08.

5 8/100

5 80/100

80/100

8/100

Answers

Answer:

a. 5 8/100 is equivalent to $ 5.08.

Explanation:

i hope this helps :)

The answer is a is the correct answer

Does heating a cup of water allow it to dissolve more sugar? Temperature of the water is measured in degrees Centigrade. Amount of sugar is measured in grams. Dependent

Answers

Answer:

Yes

Explanation:

Yes heating water allows it to dissolve more Sugars because the molecular distance increases and this distance can be covered by more sugar. In the given question, The independent variable would be the temperature of water.

A natural levee is _____.
A. an erosional feature that causes additional sediment to enter the river
B. a depositional elongated ridge formed by moving water that runs parallel to a stream channel
C. an elongated ridge designed by engineers that runs parallel to a stream channel
D. the result of wind erosion

Answers

Answer:

Option C, an elongated ridge designed by engineers that runs parallel to a stream channel

Explanation:

A natural or artificial levee is basically a ridge constructed along a river bank to regulate the water level in the stream.

It run along the river embankment and hence can be said that it runs parallel to the river length

Hence, option C is correct

You mix two amino acids together: glu and ser. If they reacted, how many different dipeptides would you expect to get? List them.
I'm really struggling with amino acids, so any help is appreciated! I won't be clicking any links, though.

Answers

Answer:

Answers 1. An amide linkage between the carboxyl group of one amino acid and the amine group of the other amino acid. 2. An ester is a compound formed from the reaction of a carboxylic acid and an alcohol. ( I apologise, I cant figure out number 3.. )

formula of velocity rate

Answers

Velocity (v) is a vector quantity that measures displacement (or change in position, Δs) over the change in time (Δt), represented by the equation v = Δs/Δt. Speed (or rate, r) is a scalar quantity that measures the distance traveled (d) over the change in time (Δt), represented by the equation r = d/Δt.

Answer:

V=d/t

,,,,,,,,,,,,,,,,,

Show work on how you answer it, please.

Answers

Answer:

the frist one is balance

by the side of reactant is

C=8

O=8

H2=17×2=34

from the product side

C=8

O=8×1=8

H2=18+(8×2)=34

and they are balance

the second one is

the reactant side

Fe=4

S=4

O2=7×2=14

the product side of the chemical equation

Fe=3×2=6

S=4

O=(4×2)+(3×3)=6+9=15

it is not balance.

#THE FRIST ONE IS BALANCE.

#THE SECOND ONE IS NOT BALANCE.

A sample of aluminum has a density of 2.7g/cm3. the mass of the aluminum is 11g. what would be the volume of the aluminum sample?

Answers

Question:-

A sample of aluminum has a density of 2.7g/cm³. The mass of the aluminum is 11g. What would be the volume of the aluminum sample ?

Answer:-

Given:-

Density of a sample of aluminium is 2.7g/cm³.

The mass of the aluminium is 11g.

To Find:-

The volume of the aluminium sample.

Solution:-

We know,

[tex] { \boxed{\bf{\rm \red {Volume \: = \frac{Mass}{Density}}}}} [/tex]

So, [tex] \bf Volume \: = \frac{11}{2.7} [/tex]

[tex] \bf Volume \: = \: 4.07 \: cm³ [/tex]

The volume of the aluminium sample is 4.07 cm³. [Answer]

A sample of air starts at STP. The volume and moles remains the same, what happens to the pressure if the temperature changes to 317 K?
show steps

Answers

Answer:

Pressure increases to 1.16 atm if the temperature changes to 317 K.

Explanation:

The STP conditions refer to the standard temperature and pressure. Pressure values at 1 atmosphere and temperature at 0 ° C (or 273 K) are used and are reference values for gases. And in these conditions 1 mole of any gas occupies an approximate volume of 22.4 liters.

On the other hand, Gay Lussac's law indicates that when there is a constant volume, as the temperature increases, the pressure of the gas increases. And when the temperature is decreased, the pressure of the gas decreases. This law mathematically indicates that the quotient between pressure and temperature is constant:

[tex]\frac{P}{T}=k[/tex]

Studying an initial state 1 and a final state 2 is fulfilled:

[tex]\frac{P1}{T1}=\frac{P2}{T2}[/tex]

In this case:

P1= 1 atmT1= 0 C= 273 KP2= ?T2= 317 K

Replacing:

[tex]\frac{1 atm}{273 K} =\frac{P2}{317 K}[/tex]

Solving:

[tex]P2=317 K*\frac{1 atm}{273 K}[/tex]

P2= 1.16 atm

Pressure increases to 1.16 atm if the temperature changes to 317 K.

The volume of a gas at 4.50 atm is 1.90 L, if the pressure of the gas is increased to 6.70 atm, what is the new
volume? In this problem, V2 =

Answers

tje new preasure is 10.7l

1: Scrieţi şi egalaţi ecuaţiile reacţiilor chimice de schimb prezentate mai jos: a) carbonat de sodiu + clorură de calciu = b) carbonat de potasiu + azotat de calciu = c) sulfat de sodiu + clorură de bariu = d) clorură de aluminiu + hidroxid de sodiu = e) sulfat de magneziu + clorură de bariu = 2: Determinaţi compoziţia procentuală a substanţei sulfat de aluminiu; calculaţi numărul de ioni Al 3+ existenţi în 3,5 Kmoli sulfat de aluminiu. 3: Acidul fluorhidric nu se poate păstra în vase de sticlă (SiO 2 ),deoarece reacţionează cu acesta: 2 SiO 2 + 4HF = SiF 4 + 2H 2 O Ştiind că sticla are un conţinut de 75,3% SiO 2, calculaţi numărul de moli, respectiv numărul de molecule de HF ce reacţionează cu 500 g sticlă. 4: Determinaţi masa de Al, respectiv de K din 500g alaun KAl(SO 4 ) 2 x 12H 2 O 5: Calculaţi cantitatea de azotat de calciu care reacţionează cu 500g soluţie carbonat de potasiu de puritate 80%. 6: Calculaţi masa de H 3 PO 4 care conţine 1,05 x 10 20 atomi oxigen.

Answers

Answer:

AMBANTOT MO MALIGO KANA

which of the following is true about these diagrams

Answers

Answer:

N/A NO DIAGRAM

Explanation:

N/A NO DIAGRAM

N/A NO DIAGRAM N/A NO DIAGRAM

N/A NO DIAGRAM

N/A NO DIAGRAM N/A NO DIAGRAM

N/A NO DIAGRAM

A gas occupies 12.3 L at a temperature of 40.0 K. What is the volume when the temperature is increased to 60.0 K?

Answers

Answer:

the volume is 18.45 L

Explanation:

The computation of the volume when the temperature is increased to 60.0 K is shown below:

Since the gas occupied 12.3 L at a temperature of 40.0 k

And, the volume when the new temperature is 60.0 k

So, the volume is

= 60.0 k × 12.3 L ÷ 40.0 k

= 18.45 L

hence, the volume is 18.45 L

Antimony sulfide+hydrogen chloride—>

Answers

Answer:

Sb2S3 + 6HCl ⇆ 2SbCl3 + 3H2S

Explanation:

when you rub your sock on carpet then touch a door what happens? what are the charges doing?

Answers

Electrons are getting released as you touch a door after you run your sock on the carpet which is called static energy.

Consider the combustion of pentane (C5H12)
a. Write the complete, balanced equation:

b. Determine the limiting reactant if 62.5 grams of pentane combine with 107 L of oxygen gas at STP.
c. If 54.6 L of CO2 gas is produced in the experiment, what is the percent yield?

Answers

Explanation:

C5H12 + 8O2 → 5CO2 +6H2O

balanced✓

stable✓

What term describes the temperature at which a substance can change state from a liquid to a gas?
A. Boiling point
B. Melting point
C. Freezing point
D. Specific heat

Answers

Option A. Boiling point.

Explanation:

When you heat the water, the water gets converts into gaseous form.

As you know that water is in liquid form. So, when you heat the water, the water molecules absorbs the heat and get dispersed from one another molecules. i.e., molecules go far from the other molecules as they absorbed heat.

The term describes the temperature at which a substance can change state from a liquid to a gas, is boiling point. Therefore, option A is correct.

What is boiling point ?

The temperature at which a liquid's vapor pressure equals the pressure around it and the liquid transforms into a vapor is known as the boiling point of a substance. A liquid's boiling point varies depending on the atmospheric pressure in the area.

Boiling point and saturation temperature are synonyms. Sometimes the measurement's pressure serves as a definition for the boiling point. The International Union of Pure and Applied Chemistry was founded in 1982.

The boiling point of a sample can be calculated using a number of techniques, such as distillation, reflux, and a Thiele tube. The simplest approach makes use of a Thiele tube and has the benefit of requiring less than 0.5mL of substance.

Thus, option A is correct.

To learn more about boiling point, follow the link;

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ЗKOH + H3PO4=K3PO4 + 3H2O
what is the reaction

Answers

Answer: The given reaction is a neutralization reaction.

Explanation:

When an acid chemically reacts with a base then it leads to the formation of salt and water.

For example, [tex]3KOH + H_{3}PO_{4} \rightarrow K_{3}PO_{4} + 3H_{2}O[/tex]

Here, KOH is a the base and [tex]H_{3}PO_{4}[/tex] is an acid which on chemical reaction with each other leads to the formation of salt [tex](K_{3}PO_{4})[/tex] and water [tex](H_{2}O)[/tex].

Thus, we can conclude that the given reaction is a neutralization reaction.

In the reaction, Hydrogen + Iodine --> Hydrogen Iodide at equilibrium, some Iodine is is added. What happens to the equilibrium?

Answers

Answer:

the concentration of hydrogen iodide will be higher than it was in the original equilibrium conditions.

2. C + S → CS2

Reaction Type:

Answers

Combination or synthesis reaction

What is the overall equation for the covalent bond in H2O . Is it H2 + O2=H2O OR. H2 + O = H2O

Answers

Answer:

The answer is in the photo

Explanation:

I hope that is useful for you :)

A graph of gas pressure versus the number of particles in a container is a straight line. Which other relationship will have a similar graph? volume versus pressure, because they are also directly proportional volume versus temperature, because they are also directly proportional volume versus pressure, because they are also inversely proportional volume versus temperature, because they are also inversely proportional

Answers

Answer:

Explanation:

gitcy is good for your spleen

The other relationship that will have a similar graph is volume versus temperature, because they are also directly proportional according to Charles's Law.

What is Charles's Law?

Charles's Law is a gas law that states that the volume of a fixed mass of gas at a constant pressure is directly proportional to its absolute temperature.

This means that as the temperature of a gas increases, the volume of the gas will also increase proportionally, and as the temperature of a gas decreases, the volume of the gas will decrease proportionally.

Therefore, if a graph of gas pressure versus the number of particles in a container is a straight line, a graph of volume versus temperature will have a similar shape and be directly proportional, because they are both affected by changes in temperature.

Learn more about Charles's Law at:

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do earths plates meet at boundaries

Answers

Answer:

Earth's plates meet at BOUNDARIES. Breaks in the crust called FAULTS form where plates meet. ... Most TRANSFORM BOUNDARIES where plates move apart occur along the mid-ocean ridges.

Explanation:

i hope this helped you ;)

*
14. An AREA which drains into a common river system.
watershed
tributary
drainage divide
riparian zone

Answers

Watershed
A watershed is an entire river system of an area drained by a river and its tributaries

will mark brainliest

Answers

The answer it the 3 one I hope this helps

25) In a certain area where there are many farms, the groundwater levels have dropped by as much as 10 m over a period of 30 years. The main cause behind this is MOST LIKELY

A) the evaporation of water from aquifers.

B) the excessive pumping of water through wells.

C) the leakage of fertilizers from the farms into the aquifer.

D) the construction of a dam to divert water into a reservoir.
NO LINKS!!!
I will give Brainliest to 1st right answer!

Answers

Answer:

I a, answering so the other dude can get brainily oh and yeah its b

Explanation:

The excessive pumping of water through well is the major reason for the drop of ground water level. The nearby farms over use water and pumps from undergrounds.

What is underground water?

Water beneath the earth surface is called ground water. The storage of ground water is a very important in all areas to sustain our need for water and it must be maintained pure without the presence of overdose of heavy metals and other impurities.

Reduction in the level of ground water storage is a serious issue that might leads to a scenario where the drinking water is not sufficient. The uncontrolled use of pump water by factories, industries and farms results in the drop of ground water level.

The nearby farms might pumping water from sources uncontrollably in the area. That is the main reason of dropping in ground water level. Hence, option B is correct.

Find more on groundwater storage:

https://brainly.com/question/29749698

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what are protons, what is their charge, and where they located?

Answers

Protons are subatomic particles, their electric charge is positive, and they are located in the nucleus of the atom.

Why can more water vapor (water molecules that are in the gas state of matter) be present in warm air than in cold air?

Answers

Answer:

Because warm air is less dense

Explanation:

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