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
stiks02 [169]
2 years ago
13

How many moles of argon gas would be present in a 37.0 liter vessel at 45.00 °C at a pressure of 2.50 atm?

Chemistry
1 answer:
Pani-rosa [81]2 years ago
8 0

Answer:

3.54 mol

Explanation:

Step 1: Given data

  • Volume (V): 37.0 L
  • Temperature (T): 45.00 °C
  • Pressure (P): 2.50 atm

Step 2: Convert "T" to Kelvin

We will use the following expression.

K = °C + 273.15

K = 45.00°C + 273.15 = 318.15 K

Step 3: Calculate the number of moles (n) of argon gas

We will use the ideal gas equation.

P × V = n × R × T

n = P × V/R × T

n = 2.50 atm × 37.0 L/(0.0821 atm.L/mol.K) × 318.15 K = 3.54 mol

You might be interested in
If the same amount of heat is added to 25.0 g of each of the metals, which are all at the same initial temperature, which metal
AVprozaik [17]

Answer:

The bismuth sample.

Explanation:

The specific heat c of a substance (might not be a metal) is the amount of heat required for heating a unit mass of this substance by unit temperature (e.g., \rm 1\; ^{\circ}C.) The formula for specific heat is:

\displaystyle c = \frac{Q}{m \cdot \Delta T},

where

  • Q is the amount of heat supplied.
  • m is the mass of the sample.
  • \Delta T is the increase in temperature.

In this question, the value of Q (amount of heat supplied to the metal) and m (mass of the metal sample) are the same for all four metals. To find \Delta T (change in temperature,) rearrange the equation:

\displaystyle c \cdot \Delta T = \frac{Q}{m},

\displaystyle \Delta T = \frac{Q}{c \cdot m}.

In other words, the change in temperature of the sample, \Delta T can be expressed as a fraction. Additionally, the specific heat of sample, c, is in the denominator of that fraction. Hence, the value of the fraction would be the largest for sample with the smallest specific heat.

Make sure that all the specific heat values are in the same unit. Find the one with the smallest specific heat: bismuth (\rm 0.123 \; J \cdot g\cdot \,^{\circ}C^{-1}.) That sample would have the greatest increase in temperature. Since all six samples started at the same temperature, the bismuth sample would also have the highest final temperature.

3 0
3 years ago
Which factor is generally responsible for high melting points?
vlabodo [156]

A. High intermolecular forces of attraction. If there are high intermolecular forces, the molecules will need large energies to escape into the liquid. The substance will nave a high melting point.

The other options are <em>incorrect </em>because they are <em>weak force</em>s. They would cause <em>low melting points</em>.

7 0
3 years ago
Read 2 more answers
All energy originates from the ________.
exis [7]

Answer:

Sun is the answer!!!!!!

5 0
2 years ago
Dawn is comparing how different animals move and the structures they use to move. She made the table shown below.
Dovator [93]

Answer:

tail and fins

Explatanation:

6 0
3 years ago
Kelvin temperature is directly proportional to average kinetic energy of particles. This means that, the higher the temperature
Lynna [10]

greater the particles move on average because as the higher the temperature the more energy the particles have to the more they move .

3 0
2 years ago
Other questions:
  • Plz answer #4 <br><br> Best answer will get BRAINLIEST!!!
    9·2 answers
  • List the following from least complex to most complex: Bacterial Cell, Multicellular Organism, and Cell with a nucleus
    14·1 answer
  • What is the mass of 1 mole of MgSO4?
    7·1 answer
  • Which energy changes are associated with a liquid boiling?
    6·2 answers
  • The element M forms a stable ionic compound MCl 2. If M were allowed to react with bromine, the resulting compound would have th
    6·1 answer
  • What do the presence of fish and a wide diversity of invertebrates in a river indicate?
    8·1 answer
  • Question 3 (11 points)
    8·1 answer
  • Cathodic protection of iron involves using another more reactive metal as a sacrificial anode. Classify each of the following me
    14·1 answer
  • Giving brainliest to right answer
    10·2 answers
  • Balance the equation <br> C2H6O+O2 ——&gt; CO2 + H2O
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!