Answer: 0.025 moles of nitrogen gas are there in the sample.
Explanation:
According to ideal gas equation:
[tex]PV=nRT[/tex]
P = pressure of gas = 1.03 atm
V = Volume of gas = 568 ml = 0.568 L (1L=1000ml)
n = number of moles = ?
R = gas constant =[tex]0.0821Latm/Kmol[/tex]
T =temperature =[tex]279K[/tex]
[tex]n=\frac{PV}{RT}[/tex]
[tex]n=\frac{1.03atm\times 0.568L}{0.0821L atm/K mol\times 279K}=0.025moles[/tex]
0.025 moles of nitrogen gas are there in the sample.
A Metal pan will heat up quickly when placed over a gas or electric burner. The Metal pan is a good what...
Answer:
heating up, lol
Explanation:
Metamorphic rocks with a non-foliated texture show metamorphic change that involves what
Explanation:
well I'm not 100% sure but I studied a little bit with rocks and crystals I've noticed that the hotter the temperature are it does not matter if it is Obsidian the hotter it is the more shinier it will become so the texture of it has to be a right temperature to be able to create a different texture such as a diamond and a diamond has to be compressed so hard that it will turn into diamond this is just an explanation please do not take this as a real answer I hope this help you though
For many purposes we can treat butane (C4H10) as an ideal gas at temperatures above its boiling point of - 1. °C.
Suppose the pressure on a 3.0 m3 sample of butane gas at 19.0°C is reduced to one-third its initial value.
Is it possible to change the temperature of the butane at the same time such that
the volume of the gas doesn't change?
If you answered yes, calculate the new temperature of the gas. Round your
answer to the nearest °C.
Answer:
A. Yes
B. –176 °C
Explanation:
A. Yes
B. Determination of the new temperature of the gas.
Let the initial pressure be P
From the question given above, the following data were obtained.
Initial pressure (P1) = P
Initial temperature (T1) = 19 °C
Final pressure (P2) = ⅓ P1 = ⅓P = P/3
Final temperature (T2) =?
Next, we shall convert 19 °C to Kelvin temperature. This can be obtained as follow:
T(K) = T(°C) + 273
Initial temperature (T1) = 19 °C
Initial temperature (T1) = 19 °C + 273
Initial temperature (T1) = 292 K
Since the volume is constant, we can obtain the new temperature of the gas as illustrated below:
Initial pressure (P1) = P
Initial temperature (T1) = 292 K
Final pressure (P2) = P/3
Final temperature (T2) =?
P1/T1 = P2/T2
P/292 = P/3 /T2
P/292 = P/3T2
Cross multiply
P × 3T2 = 292 × P
Divide both side by P
3T2 = (292 × P)/P
3T2 = 292
Divide both side by 3
T2 = 292/3
T2 = 97.33 ≈ 97 K
Finally, we shall convert 97 K to celcius temperature. This can be obtained as follow:
T(°C) = T(K) – 273
T(K) = 97
T(°C) = 97 – 273
T(°C) = –176 °C
Thus, the new temperature of the gas is –176 °C.
The temperature of the butane can be changed when the pressure has been reduced to one-third of the initial temperature. The final temperature of the gas will be -176 [tex]\rm ^\circ C[/tex].
When the pressure of butane has been reduced to one-third of the initial pressure, it has been possible to change the temperature as well. This is because the gas will follow the ideal gas equation and will be able to change pressure and temperature as they are directly proportional to each other.
The new temperature can be given by:
Initial pressure = P
Final pressure = [tex]\rm \dfrac{P}{3}[/tex]
Initial temperature = 19 [tex]\rm ^\circ C[/tex]
Initial temperature = 292 K
When the volume is kept constant, the relationship of the pressure and temperature can be given by:
[tex]\rm \dfrac{P1}{T1}\;=\;\dfrac{P2}{T2}[/tex]
Where P1 and T1 are initial pressure and temperature respectively. P2 and T2 are the final pressure and temperature respectively.
[tex]\rm \dfrac{P}{292}\;=\;\dfrac{P}{3T2}[/tex]
P [tex]\times[/tex] 3T2 = P [tex]\times[/tex] 292
3T2 = 292 K
T2 = 97.33 K
The final temperature of butane with the decrease of one-third of pressure has been 97.33 K.
273 K = 1 [tex]\rm ^\circ C[/tex]
97.33 K = -176 [tex]\rm ^\circ C[/tex]
The final temperature of butane with the decrease of one-third of pressure has been -176 [tex]\rm ^\circ C[/tex].
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Which diagram best shows the field lines around two particles with opposite
charges?
The diagram best shows the field lines around two particles with opposite charges is the third diagram. Therefore, option C is correct.
What is field line ?A graphic tool for viewing vector fields is a field line. It is made up of a fictitious directed line that is perpendicular to the field vector over its whole length.
Among many other sorts, they are employed to display magnetic, electric, and gravitational fields. In the study of fluid mechanics, streamlines are field lines that display the velocity field of a fluid flow.
The field lines are parallel to the charge's surface. Both the size of the charge and the quantity of field lines are proportional. The positive charge is where the field lines begin, and the negative charge is where they come to a conclusion.
Thus, option C is correct.
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Answer: its C
Explanation: I took the test
Is this correct? Just wanna make sure :)
Help with all of this fill in the blank if it’s right you will be marked as brain list
Answer:
your bad dude
Explanation:
polyatomic ions with identical molecular formula called?
What is the final concentration of a solution prepared by diluting 35.0 mL of 12.0 M HCl to a final volume of 1.20 L
Answer: The final concentration of a solution is 0.350 M
Explanation:
According to the dilution law,
[tex]C_1V_1=C_2V_2[/tex]
where,
[tex]C_1[/tex] = concentration of concentrated acid solution = 12.0 M
[tex]V_1[/tex] = volume of concentrated acid solution = 35.0 ml
[tex]C_2[/tex] = concentration of diluted acid solution= ?
[tex]V_2[/tex] = volume of another acid solution= 1.20 L = 1200 ml
( 1L=1000ml)
Putting in the values:
[tex]12.0\times 35.0=C_2\times 1200[/tex]
[tex]C_2=0.350M[/tex]
The final concentration of a solution prepared by diluting 35.0 mL of 12.0 M HCl to a final volume of 1.20 L is 0.350 M
please help!!
which oneeeee
List 5 foods that contain bacteria?
all energy travels in waves true or false
Given the two half-reactions, what must be done in the next step before the reaction can be balanced?
First: upper A u superscript 3 plus right arrow upper A u. Second: upper I superscript minus right arrow Upper I subscript 2.
How many electrons are produced/used in this redox reaction when it is balanced?
2
3
6
Answer:
Given the two half-reactions, what must be done in the next step before the reaction can be balanced?
Answer: Show the number of electrons being lost or grained.
Explanation:
For a two given half-reactions, before the reaction can be balanced determine the number of electrons being lost or grained.
What is a half-reaction?A half reaction is either the oxidation or reduction reaction component of a redox reaction.
The half reaction is obtained by considering the change in oxidation states of individual substances involved in the redox reaction.
Thus, for a two given half-reactions, before the reaction can be balanced determine the number of electrons being lost or grained.
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Which of the following will increase the volume of a gas
Answer:
The volume of a gas is directly proportional to its temperature. Avagadro's Law- Gives the relationship between volume and amount of gas in moles when pressure and temperature are held constant. If the amount of gas in a container is increased, the volume increases.
Answer:
Decreasing the pressure applied to the gas.
Explanation:
Ap3x
What is represented in each block of the periodic tables?
the answer is c
it wants me to write a 20 letter explanation but ion got time for that
One ion is represented in each block of the periodic tables. Hence option C is correct.
What is periodic table?Periodic table is defined as a table with the chemical elements ordered by increasing atomic number, displaying the elements to show trends in their characteristics. The elements are arranged in the Periodic Table in accordance with their related chemical and physical characteristics. There are rows and columns in the table. The periodic table's vertical columns stand in for Groups. Periods are shown in the table as horizontal rows.
Ions are defined as any atom or collection of atoms that carries one or more electrical charges, either positive or negative. The positive ions are known as cation while the negative ions are known as anion. When an atom's number of protons and electrons is out of balance, ions are created.
Thus, one ion is represented in each block of the periodic tables. Hence option C is correct.
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A pyroclastic flow typically occurs during a quiet eruption.
Please select the best answer from the choices provided
OT
OF
Answer:
f
Explanation:
Answer:
False
Explanation:
The diagram shows an occluded front. Which point identifies the warm air mass in this front? PLEASE I NEED THIS REALLY FAST!
Answer:C
Explanation: got it right on edj
Answer:
the answer is c
Explanation:
i just did the assignment
bi-S is relatively more stable than bi-n bond. give reasons for the HSAB concept
Answer:
xhhhvxhxgjhgogftsvicsdgfsytdhdrrygyfhd
Explanation:
ywwgzwu9wu9wsussg the the
which chemical equation follows the law of conservation of mass
Answer:
the law of conversation of mass States that mass is an isolated system is neither created or destroyed by chemical reactions or physical transformations. according to the law of conversation of mass the mass of the product in a chemical reaction must equal to the mass of reactants
hope It helped you
Answer the question below
Answer:
C
Explanation: I think
All the questions to The power of advertising commonlit answers.
Human genes can combine in about _________________ different combinations.
The diagram shows currents that form as water is heated. Which would most likely contain this same type of current? the air above a wildfire a carton of milk in a refrigerator a snowdrift on a shady mountainside a boulder in a hot desert
Answer:
the answer is A
Explanation:
edg 2020
Answer:
the air above a wildfire/A
Explanation:
Which of the following pairs of elements is least likely to combine to form a compound?
A. Aluminum AI and phosphorus P
B. boron B and neon S
C. carbon C and sulfur S
D. oxygen and fluorine F
Answer:
c.carbon C and sulfur S
Explanation:
The ethyl acetate solution containing the mixture used in this experiment had a concentration of 20.0 g/L of benzoic acid. 1. Recovery of benzoic acid:
Answer:
The correct answer is "[tex]\frac{0.65}{V} \ percent[/tex]".
Explanation:
The given values are:
[tex]M_r=0.130 \ g[/tex]
[tex]M_o=20 \ g/L\times V(L)[/tex]
[tex]=20 \ V[/tex]
As we know,
⇒ [tex]Recovery \ percent=\frac{Amount \ of \ substance \ recovered}{Amount \ of \ substance \ originally \ taken}\times 100[/tex]
On substituting the given values, we get
[tex]=\frac{0.130}{20 \ V}\times 100[/tex]
[tex]=\frac{0.65}{V} \ percent[/tex]
Note: percent = %
What are 3 ways the turtle has adapted to survive?
How many nucleons are in an Iodine element? Okay
Answer:
there are 74
Explanation:
QUESTION 5
Sugar and coal are not minerals because they are ___.
A. crystals
B. organic
C. made by humans
D. solid
E. not found with a specific chemical composition
I Will only give brainliest if you are correct
Answer:
They are organic
how do organisms
can compete for abiotic
factors in an ecosystem.
Answer:
An organism's niche includes food, shelter, its predators, the temperature, the amount of moisture the organism needs to survive, etc. When two or more individuals or populations try to use the same limited resources such as food, water, shelter, space, or sunlight, it is called competition.
Of the following transitions in the Bohr hydrogen atom, the ________ transition results in the emission of the lowest-energy photon
Of the following transitions in the Bohr hydrogen atom, the n=6 to n=1 to transition results in the emission of the lowest-energy photon.
What is the Bohr atomic model?In 1913 Neil Bohr gave the atomic hydrogen model.
It says that a positively charged nucleus is made up of protons and neutrons and is surrounded by an electron cloud that is negatively charged.
According to the model, electrons are arranged in atomic shells around the nucleus.
Thus, the correct fill the blank is n=6 to n=1.
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4. A scientific theory is
1. a well-tested explanation for a widely accepted hypothesis
2. a well-tested explanation for a broad set of observations
3. a proven explanation for the results of multiple experiments
4. a hypothesis that has stood the test of time
Answer:
Option 1
Explanation: