3. A sample of air in a syringe exerts a pressure of 1.02 atm at 22.0°C. The syringe is placed in a boiling-water bath at 100.0°C. The
pressure is increased to 1.23 atm by pushing the plunger in, which reduces the volume to 0.224ml What was the initial volume?

Answers

Answer 1

Answer:

0.214 mL    

explanation:

Answer 2

Ideal Gas law is applied to the ideal gases. The initial volume of air in the syringe when applied pressure and reducing the volume to 0.2234 mL is 0.214 mL.

What is the Ideal Gas Equation ?

The equation relating all the characteristics of a gas and behaving or assuming to be ideal is the ideal gas law equation.

pV = nRT

Here, p is the pressure, V is the volume, R is the universal gas constant, n is the number of moles and T is the temperature.

According to the law, the initial and final values of gas are related as

[tex]\dfrac{P_{1} V_{1} }{T_{1} } =\dfrac{P_{2} V_{2} }{T_{2} }[/tex]

The initial pressure P₁ is 1.02 atm and final pressure P₂ is 1.23 atm.

The  initial temperature T₁  is (22+273)=295 K and the final temperature (100+273)=373 K

The final volume  V₂ given is 0.224 mL

Placing the values into the ideal gas equation and solving, we get the value of initial volume.

V₁= 0.214 mL

The initial volume of air in the syringe when applied  pressure and   reducing the volume to 0.2234 mL is 0.224 mL.

Learn more about Ideal gas law equation.

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Related Questions

Sulfur hexafluoride, SF6, is a colorless, odorless, very unreactive gas. Calculate the pressure (in atm) exerted by 2.02 moles of the gas in a steel container of volume 6.21 L at 70 ℃.

Answers

Answer:

9.15 atm

Explanation:

Ideal gas equation of state PV=nRT

P in hPa, V in L, n in mol, R is a constant which is 83.1 hpa*L/mol*k, T in kelvin.

Plug in all the number, and we will get:

P*6.21=2.02*83.1*343

P =9271.6(in hpa)=9.15 atm

Chlorine exists as a gas, and iodine exists as a solid at room temperature. What explains the difference in the physical states of the substances at room temperature?


The intermolecular attractions are weaker with chlorine than iodine.

The intermolecular attractions are stronger with chlorine than iodine.

Chlorine has more electrons than iodine..

Chlorine has less protons than iodine.

Answers

Answer:

The correct answer is B)The intermolecular attractions are stronger with chlorine than iodine.

Explanation:

Have a nice Day

Answer:

cfvghjnmkljhgtfaASDFGVBHNJNGFDXZVBRNHT45RFD

Explanation:

Loggerhead turtles live and migrate around the Atlantic Ocean. Which of the following is an adaptation of Loggerhead turtles? *

How many liters would 18.0 grams of water vapor occupy at 273 K and 1.00 atm?

Answers

Answer:

22.41 Liters

Explanation:

Using the general law equation;

PV= nRT

Where;

P = pressure (atm)

V = volume (L)

n = number of moles (mol)

R = gas law constant (0.0821 Latm/molK)

T = temperature (K)

According to the information provided in this question,

mass of water vapor = 18g

Molar mass of water (H2O) = 1(2) + 16 = 18g.

mole = mass/molar mass

- mole (n) = 18/18 = 1mol

V = ?

T = 273K

p = 1 atm

Using PV = nRT

V = nRT/P

V = 1 × 0.0821 × 273/1

V = 22.41 Liters


Which of the following is a homogeneous mixture?
A. beef stew
B. melting
C. rusting
D. cutting

Answers

Answer:

B. Melting

Explanation: Process of elimination

give brainliest pls <3

a nonliving substance found in earth crust

Answers

Answer:

Dirt

mud

rocks

ect.

Explanation:

A H2CO3 (aq) ---> CO2 (g) + H2O (l) B H2SO4 (aq) + 2NaOH (aq) ---> Na2SO4 (aq) + 2H2O (l) C 2H2 (g) + O2 (g)----> 2H2O (l) D AgNO3 (aq) + NaOH (aq) ---> AgOH (s) + NaNO3 (aq) Which equation above represents a precipitation reaction?

Answers

Answer: [tex]AgNO_3(aq)+NaOH(aq)\rightarrow AgOH(s)+NaNO_3(aq)[/tex]

Explanation:

A double displacement reaction is one in which exchange of ions take place. The salts which are soluble in water are designated by symbol (aq) and those which are insoluble in water and remain in solid form are represented by (s) after their chemical formulas.  

A double displacement reaction in which one of the product is formed as a solid is called as precipitation reaction.  

The equation which represents a precipiation reaction is:

[tex]AgNO_3(aq)+NaOH(aq)\rightarrow AgOH(s)+NaNO_3(aq)[/tex]

Thread-like structures that are found in the nucleus of a cell that contains all DNA.
A.) DNA
B.) Genes
C.) Chromosomes
D.) Nucleus

Answers

I think the awnser is C chromosomes

1. List 3 physical and chemical phenomena

Answers

Answer:

Examples of chemical changes are burning, cooking, rusting, and rotting. Examples of physical changes are boiling, melting, freezing, and shredding. Often, physical changes can be undone, if energy is input.

Hope this helped.

what are 3 types of mutations

Answers

1- Base substitutions.

2- Deletions.

3- Insertions.

If u take a close look at the teenage mutant ninja turtles you will see

explain why the constellations in the night sky change with the seasons

Answers

Answer:

Explanation:

If observed through the year, the constellations shift gradually to the west. This is caused by Earth's orbit around our Sun. In the summer, viewers are looking in a different direction in space at night than they are during the winter.

Light-colored moths blend with light-colored tree bark in their environment. A moth with a dark- colored variation blends with dark-colored tree bark but stands out against light-colored bark. What environmental change would give the dark-colored moth in the picture an adaptive advanage and enhance its survival?

A. The dark-colored moth will have an advantage if it begins to feed at night.

B. If the climate warms, dark-colored moths will absorb more heat.

C. Light-colored moths will be killed more readily if the climate cools.

D. If a change in the environment causes most of the trees to darken, the dark-colored moth will have an advantage.​

Answers

D. If the trees darken, the dark moth would be at an advantage because it can blend with its environment more easily while the white colored moth would stand out.

I really can’t do this don’t understand it

Answers

Answer:

7.96g, 33.79%

Explanation:

I'll try my best to explain the entire process behind this question ;)

From the question, you can write the reaction

[tex]2H_2O(l)->2H_2(g)+O_2(g)[/tex]

Now, there are a few reasons it is like this. Oxygen is a diatomic element, meaning it doesn't and can't exist as just O. It exists as O₂. To balance, this, double the amount of water and hydrogen so there is an equal amount of  each element on both sides of the reaction (4 H's, 2 O's on the reactant side, and 4 H's, 2 O's on the product side).

From this we can get a mole-to-mole ratio.

Onto the stoichiometry. Our goal in this is to convert from grams of water to grams of hydrogen, and we do so with a mole to mole ratio.

[tex]71.0gH_2O*\frac{1molH_2O}{18.02g} *\frac{2molH_2}{2molH_2O}* \frac{2.02g}{1molH_2}\\\\ =7.96gH_2[/tex]

Basically, what I did was divide by water's molar mass to get moles of water, multiplied by the mole-to-mole ratio (2:2) to get moles of H2, and then multiplied by H2's molar mass to get what should be the amount of H2 produced by the reaction.

For percent yield, you can calculate it is such:

[tex]\frac{Actual}{Theoretical}*100[/tex]

Plug the numbers in:

[tex]\frac{2.69g}{7.96g}*100\\\\ =33.79%[/tex]

So, the percent yield is 33.79%

Why are fossils not found in igneous or metamorphic rocks?

Answers

Answer:

Because the rock underwent lava and heat/pressure transformation. They are cooled and heated by magma, and then under go pressure. No fossils would be found in those.

Explanation:

Hope this helps! :)

Answer:

Because...

Explanation:

Igneous rock is cooked in extreme hot temperatures.

Metamorphoc is lava cooled downed.

Put each equation under the correct heading.

Answers

Decomp. ~ 2H2O —-> 2H2 + O2


Single Disp. ~ AgNO3 + Cu —> CuNO3 + Ag


Double Disp ~ Pb(NO3)2(aq) + 2KI(aq) -> 2KNO3(aq) + PbI2(s)


Combustion ~ CH4 + O2 —> CO2 + 2H2O


Synthesis ~ 2Mg + O2 —> 2MgO

Which of the following is NOT an example of circular motion?

(A) car turning a corner

(B) car accelerating onto highway

(C) yo-yo on a string going in a circle

(D) the Moon’s path around Earth

Answers

Answer:

B

Explanation:

A body moving with a constant speed and constantly changing direction and changing velocity is said to be in circular motion.

in certain fireworks potassium nitrite breaks down into potassium oxide, nitrogen and oxygen. This is an example of a _________ reaction. The opposite process is a ________ reaction.

options for both blank spots are the same.

A. combustion
B. decomposition
C. replacement
D. synthesis

Select the correct answer from each drop down menu.

HELLLPPPP PLEEASEE!!!!​

Answers

Breaking down is decomposition and the opposite is synthesis I think

help meeeee

I require someone WITH braincells


22 How does Earth's tilt affect climate?

OA. smaller the tilt, the warmer the summer.

OB. The smaller the tilt, the smaller the temperature difference is between summer and winter.

OC. The larger the tilt, the warmer the summer.

OD. The larger the tilt, the smaller the temperature difference is between summer and winter.​

Answers

the answer is the third one

The percentage composition of acetic acid is found to be 39.9% C, 6.7% H, and 53.4% O. What is the empirical formula of acetic acid?

Answers

Answer:

CH₂O

Explanation:

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

Carbon (C) = 39.9%

Hydrogen (H) = 6.7%

Oxygen (O) = 53.4%

Empirical formula =?

The empirical formula of acetic acid can be obtained as follow:

C = 39.9%

H = 6.7%

O = 53.4%

Divide by their molar mass

C = 39.9 / 12 = 3.3

H = 6.7 / 1 = 6.7

O = 53.4 / 16 = 3.3

Divide by the smallest

C = 3.3 / 3.3 = 1

H = 6.7 / 3.3 = 2

O = 3.3 / 3.3 = 1

The empirical formula => CH₂O

why do atoms combine to form compund?​

Answers

Answer:

See below

Explanation:

The following reasons tell why atom combine to form compounds:

1) They want to follow octet or duplet rule and attain the noble gas configuration.

2) They combine to form compounds because of the electrostatic attraction between them.

3) They form compounds to lower their energy and to become stable.

[tex]\rule[225]{225}{2}[/tex]

Hope this helped!

~AH1807

4 L of He gas is mixed with 2 L of Ne gas. What is the mole fraction of each component?

Answers

moles of He=4 L/22.4 L=0.1786 mol

moles of Ne=2 L/22.4 L=0.0893 mol

total moles of the gas mixture

=0.1786+0.0893

=0.2679 mol

mole fraction of He=0.1786 mol/0.2679 mol=0.6667

mole fraction of Ne=0.0893 mol/0.2679 mol=0.3333

If E is the symbol for an element, which two of the following symbols represent isotopes of the same element?

Answers

Answer:

1 and 4

Explanation:

How many hours are in 188 years

Answers

Answer: about 1,705,536 hrs

24 hrs = 1 day

189 hrs = 1 week

756 = 1 month

9072 = 1 yr

1,705,536 = 188 yrs

Explanation:

Trust Milky. Milky smart

How many atoms are there in 1.005 moles of CO2?

Answers

Answer:

[tex]6.05211\times 10^{23}\ \text{atoms}[/tex]

Explanation:

Moles of carbon dioxide = 1.005 moles

[tex]N_A[/tex] = Avogadro's number = [tex]6.022\times 10^{23}\ \text{mol}^{-1}[/tex]

Number of atoms is given by

[tex]\text{Moles}\times N_A=1.005\times 6.022\times 10^{23}[/tex]

[tex]=6.05211\times 10^{23}\ \text{atoms}[/tex]

The number of atoms in the given amount of moles of carbon dioxide is [tex]6.05211\times 10^{23}\ \text{atoms}[/tex].

The following symbol (<-->) means

Answers

Answer:

Greater than or less than

I need help with this please

Answers

Answer:

raising the Concentration of liquid

raise the temperature of the system

bubbles of hydrogen gas

Suppose you crushed an antacid tablet before dissolving it in a glass of water. The crushed antacid tablet would:
a. take the same amount of time to dissolve as a whole antacid tablet.
b. dissolve more slowly than a whole antacid tablet.
c. take more time to dissolve than a whole antacid tablet.
d. dissolve more quickly than a whole antacid tablet.

Answers

Explanation:

dissolve more quickly than a whole antacid tablet.

Order the items below from largest to smallest size.

ITEM BANK

1 atom of oxygen
1 mole of oxygen
1 molecule of oxygen
3.01 X 1023 atoms of oxygen
4 grams of oxygen


1_
2_
3_
4_
5_​

Answers

Answer:

1- gram of oxygen, 2- 3.01x1023 atoms of oxygen, 3- 1 molecule of oxygen, 4- 1mole of oxygen, 5- 1atom of oxygen.

How much heat must absorbed by the reaction system to convert 100g of NaNO3 into NaHSO4(s)?

Answers

Answer:

about 4.8kJ

Explanation:

There is some missing information in the question given.

For use to determine the amount of heat that must be reacted in the system to convert 100g of NaNO₃ into NaHSO₄(s);

Then, we need to consider the following reaction between sodium nitrate (NaNO₃)  and sulfuric acid (H₂SO₄):

[tex]\mathbf{NaNO_{3(s)}+ H_2SO_{4(l)}\to NaHSO_{4(s)}+HNO_{3(g)} \ \ \ \ \ \Delta H = 21.2 \ kJ}[/tex]

From the above reaction, 84.99 gm of NaNO₃ reacted with H₂SO₄ which is converted into NaHSO₄ thereby absorbing 21.2 kJ amount of heat.

This implies that; if 84.99 gm of NaNO₃ absorbs 21.2 kJ amount of heat.

1 gm of NaNO₃ will absorb = [tex]\mathsf{\dfrac{21.2}{84.99} \ kJ \ heat}[/tex]

= 0.2494 kJ amount of heat.

100 g of NaNO₃ will absorb [tex]= \mathsf{\dfrac{21.2}{84.99} \times 100 \ kJ \ heat}[/tex]

= 24.94 kJ amount of heat.

Therefore, we can conclude that the amount of heat that must be absorbed by the reaction system to convert 100g of NaNO3 into NaHSO4(s) is 24.94 kJ.

Learn more about the amount of heat absorbed in a chemical reaction here:

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6. Which of the following is not a characteristic of electromagnetic light waves?
O A. They can be reflected and refracted.
O B. They travel at the same speed through any one material.
O C. They can't travel through a vacuum.
O D. They obey the formula velocity = wavelength x frequency

Answers

B is the answer,I took the test

Answer:

B. They travel at the same speed through any one material.

Explanation:

Need help with this chemistry problem

Answers

there has to be a double bond then you put the rest into lone pairs
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