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
g100num [7]
4 years ago
14

Calculate the root mean square (rms) average speed of the atoms in a sample of xenon gas at 0.15 atm and -55c

Chemistry
1 answer:
GrogVix [38]4 years ago
7 0
Answer:
Vrms is 149.7266 m/sec

Explanation:
The root means square velocity of a gas can be calculated as follows:
Vrms = \sqrt{ \frac{3RT}{M}}
where:
R is the ideal gas constant = 8.3145
T is absolute temperature = -55 + 273 = 118 degrees kelvin
M is the molar mass of the gas = 131.293 grams = 0.131293 kg

Substituting with these givens in the above equation, we would find that the Vrms is 149.7266 m/sec

Hope this helps :)
You might be interested in
How does water’s ability to form hydrogen bonds explain why ice is less dense than liquid water?
Karolina [17]

Answer:

As water freezes, a crystalline structure preserved by hydrogen bonding is formed by water molecules. Less dense than liquid water is solid water, or ice. Ice is less dense than water since molecules are pulled farther apart by the direction of hydrogen bonds, which decreases density.

Explanation:

3 0
3 years ago
Why would someone need to find the relative density of an object?
Ede4ka [16]

Answer:

The relative densities of an object and the liquid it is placed in determine whether that object will sink or float. An object that has a higher density than the liquid it's in will sink. An object that has a lower density than the liquid it's in will float.

Explanation:

Hope it helps!

8 0
2 years ago
B. Which of the following compounds can
Tamiku [17]

Answer:

The correct answer is:

d. Na2S, NaF

4 0
3 years ago
Read 2 more answers
A study of the decomposition reaction 3RS2  3R + 6S yields the following initial rate dat
shutvik [7]
Missing question: What is the rate constant for the reaction?
<span>[RS2](mol L-1) Rate (mol/(L·s))
0.150                0.0394
0.250                0.109
0.350                0.214
0.500                0.438</span>
Chemical reaction: 3RS₂ → 3R + 6S.
Compare second and fourth experiment, when concentration is doubled, rate of concentration is increaced by four. So rate is:
rate = k·[RS₂]².
k = 0,438 ÷ (0,500)².
k = 1,75 L/mol·s.
3 0
3 years ago
Coefficients are used in a chemical formula to show the number of each element. True or False
ANTONII [103]

Answer:

The same number of each element present before the reaction takes place must also be present on the product side of the equation. Coefficients are placed in front of a chemical formula to show the number of moles of that substances that are necessary for the reaction to occur.

Explanation:

5 0
3 years ago
Other questions:
  • The empirical formula for two compounds that have very different properties (one tastes very sour and the other very sweet) is c
    12·2 answers
  • If a country wants to increase its GPA what actions could be taken
    7·1 answer
  • Which substance acts as the anode in the lead-acid automobile battery?
    15·1 answer
  • How do electrons differ from protons and neutrons?
    12·1 answer
  • State how many mole ratios can be written for a reaction involving three substances.
    14·1 answer
  • How many moles of magnesium chloride (mgcl2) are in 1.31 l of 0.38 m mgcl2?
    9·1 answer
  • Which of the following reactions Shows a chemical change producing a gas? APEX
    14·2 answers
  • Help need help with this question answer plz 30 points
    6·2 answers
  • Which of the following is not used when analyzing and evaluating scientific explanations?
    11·1 answer
  • Which of the following is true about extinction? A. Only one extinction has occurred during the Earth's history. B. Plant specie
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!