1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
allochka39001 [22]
3 years ago
11

Which equation is set up correctly to determine the volume of a 3.2 mole sample of oxygen gas at 50°C and 101.325 kPa?

Chemistry
2 answers:
77julia77 [94]3 years ago
7 0
N = 3.2 moles, T = 50 + 273 = 323 K, P = 101.325 kPa,  R = 8.314 L.kPa/K.mol 

PV = nRT

V = nRT / P           substituting.

V = (3.2 mole)(8.314 L.kPa/K.mol )(323 K) / (<span>101.325 kPa)

That is the answer, but it is not among the options you provided. Check your options properly.</span>
hodyreva [135]3 years ago
6 0

Hello!

Which equation is set up correctly to determine the volume of a 3.2 mole sample of oxygen gas at 50°C and 101.325 kPa?

We have the following data:

v (volume) = ? (in L)

n (number of mols) = 3.2 mol

T (temperature) = 50 ºC 

First let's convert the temperature on the Kelvin scale, let's see:

TK = TºC + 273

TK = 50 + 273

TK = 323

P (pressure) = 101.325 kPa

R (gas constant) = 8.314 L . kPa/K.mol

We apply the data above to the Clapeyron equation (gas equation), let's see:

P*V = n*R*T

101.325\:kPa*V = \left(3.2\:mol)\right*\left(8.314\:L.kPa/K.mol)\right*323\:K

\boxed{\boxed{V = \dfrac{\left(3.2\:mol)\right*\left(8.314\:L.kPa/K.mol)\right*323\:K}{101.325\:kPa} }}\end{array}}\qquad\checkmark

Answer:

(A)  V=(3.2 mol)(8.314 L⋅kPa/K⋅mol)(323 K) / 101.325 kPa

________________________________

I Hope this helps, greetings ... Dexteright02! =)

You might be interested in
Which of the following statements are true of acids and bases?
gtnhenbr [62]
A. Acids increase the number of OH- ions in a solution. FALSE
B. Bases increase the number of OH- ions in a solution. TRUE
C. Acids increase the number of H+ ions in a solution. TRUE
D. Bases increase the number of H+ ions in a solution. FALSE
8 0
3 years ago
How many grams of sodium are in 0.820 moles of na2so4?
s344n2d4d5 [400]
<span>the molar mass of a compound is the sum of the products of the atomic masses by the number of atoms of the element.
molar mass of Na</span>₂SO₄<span> is - 142 g/mol.
1 mol of </span>Na₂SO₄<span> has a mass of 142 g.
In 1 mol of </span>Na₂SO₄<span> the mass of Na is 23 g/mol x 2 = 46 g.
                             
Mass of Na in 1 mol of </span>Na₂SO₄ is - 46 g
                           
mass of Na in 0.820 mol of Na₂SO₄ - 46 g /1 mol x 0.820 mol = 37.72 g.
mass of Na is 37.72 g
5 0
3 years ago
Read 2 more answers
What conditions will cause a redox reaction to be nonspontaneous?
kherson [118]
The answer is B for the apex answer
7 0
3 years ago
Explain how different observations and experiments led to changes in the atomic model.
Bingel [31]

> Explain how different observations and experiments led to changes in the atomic model.

The atomic model has progressed over time. As scientists have learned more about the atoms, the atomic model has changed.

Democritus: first proposed that matter cannot be divided into smaller pieces

Dalton: created the 1st atomic theory. He viewed atoms as tiny solid balls

JJ Thomson: discovered electrons, he showed that atoms are made of even smaller things

Rutherford: discovered protons and nucleus, he showed that atoms have positive particles in the center and that atoms are made up mostly of empty space

Bohr: improved Rutherford’s model by proposing that electrons move around the nucleus in layers or shells

Chadwick: discovered neutrons = particles with no charge

The modern model of the atom is made up of works collaborated since 1920 which has electrons moving around the nucleus in a cloud.

> Explain how line spectra are used to identify elements and what they indicate about atoms.

Actually each element has its own unique spectra, hence this property can be used to identify the element. The line spectra give us an indication about the energy levels of the electrons, and each wavelength produces different colors.

> Represent electron arrangements using electron configuration, orbital notation, shorthand notation, and Lewis dot notation.

To answer your question, I will illustrate an example. The s orbital can accommodate 2 electrons, p orbital can accommodate 6, d orbital can accommodate 10, f orbital can accommodate 14. To take as example, Mg contains 12 electrons using the Aufbau principle, the electron configuration is: 1s2 2s2 2p6 3s2 the numbers after the letter represent the amount of electrons, the letters (s, p) represent the sublevel of the electron, while the number before the letter represent the principal quantum number, or "level".

Apply the rules and limitations of each quantum number to identify possible and impossible quantum number sets.

>There are four quantum numbers.

1. Principal quantum number (n) can take values of any positive whole numbers

2. Angular momentum quantum number (l) is from 0 to n – 1

3. Magnetic quantum number (ml) is from –l to +l

4. Spin quantum number (ms) only takes two values, positive spin and negative spin: +1/2, -1/2

From these rules you can identify possible and impossible set of quantum numbers.

4 0
3 years ago
In the molecule represented by the chemical formula H2SO4, there would be...Select one:a. 1 hydrogen atom.b. 2 hydrogen atoms.c.
REY [17]
<h2>Answer:</h2>

2 hydrogen atoms.

<h2>Explanations:</h2>

Given the chemical formula H2SO4,

The compound shows that the formula has 4 atoms of oxygen, one atom of sulfur and 2 hydrogen atoms.

Therefore, the number of hydrogen atom in the molecule H2SO4 is 2 hydrogen atoms.

3 0
1 year ago
Other questions:
  • The half-life of cobalt-60 is 5.3 years. after __________ years, 1/4 of the original amount of cobalt-60 will remain.
    5·2 answers
  • Early scientists think that plate motion was driven by
    6·1 answer
  • Repeating tests usually leads to
    6·2 answers
  • Choose the covalent compounds from the following choices Br2 MgS SO2 KF
    7·1 answer
  • The p K b pKb values for the dibasic base B B are p K b1 = 2.10 pKb1=2.10 and p K b2 = 7.84 . pKb2=7.84. Calculate the pH at eac
    11·1 answer
  • Which of the following questions is most testable through scientific experimentation?
    9·2 answers
  • In what stage of wastewater treatment are large objects such as rags, sticks and garbage removed from influent?
    14·2 answers
  • What figurative language is this
    5·1 answer
  • Which classification best describes oxygen gas? a element b compound c solution d heterogeneous mixture
    7·1 answer
  • Use the drop-down menus to answer the questions about fronts and weather maps.
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!