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
miskamm [114]
3 years ago
7

The Kelvin temperature required for 0.0470 mol of helium gas to fill a balloon to 1.20 L under 0.878 atm is

Chemistry
1 answer:
4vir4ik [10]3 years ago
7 0
From the ideal gas law, PV = nRT, we can rearrange the equation to solve for T given the other parameters.

T = PV/nR

where P = 0.878 atm, V = 1.20 L, n = 0.0470 moles, and R = 0.082057 L•atm/mol•K. Plugging in our values, we obtain the temperature in Kelvin:

T = (0.878 atm)(1.20 L)/(0.0470 mol)(0.082057 L•atm/mol•K)
T = 273 K

So, the second answer choice would be correct.
You might be interested in
Fill in the blanks with appropriate options given in below:
jarptica [38.1K]

Answer:

1) -COOH

2) -NH2

3) hydrogen bonds

4) dispersion forces

5) -CH3

6) hydrogen bonds

7) negative

8) negative

9) positive

Explanation:

Alanine has a <u>-COOH</u> and a <u>-NH2</u> group available to form <u>hydrogen bonds</u> with water molecules.

Although there are some potential <u>dispersion forces</u> between the terminal <u>-CH3</u> group of alanine and hexane molecules, we expect the <u>hydrogen bonds</u> between alanine and water to be stronger.

Stronger intermolecular attractive forces between alanine and water lead to a more <u>negative ΔHmix</u> and more <u>negative (smaller positive)</u> ΔHsoln for water than for hexane.

4 0
3 years ago
Many of water's emergent properties, such as its cohesion, its high specific heat, and its high heat of vaporization, result fro
erastova [34]

Answer: are electrically attracted to each other

Explanation:Water molecules are attracted to each other by partial negative and positive charges on the oxygen and hydrogen atoms, respectively

6 0
3 years ago
Read 2 more answers
What is the only nonmetal with four valence electrons.
Alja [10]

Carbon is a non metal and also has four valence electrons.

3 0
3 years ago
Can you guys help me on my science homework??​
natulia [17]

Answer:

1. B 2. D 3. Jon could test which animals like certain foods.

3 0
3 years ago
Question 7 of 10
sweet [91]

Answer:

1s2 2s2 2p6 3s2 3p3

Explanation:

8 0
3 years ago
Read 2 more answers
Other questions:
  • If the oh is 6.46(10^-9)M what is the pOH
    14·1 answer
  • HELP PLEASE. STRUGGLING. Which of the following is true in an acidic solution? A)The molarity of hydroxide is double the molarit
    10·1 answer
  • The chemical formula tells the types of atoms and how many of each are contained in a compound. Please select the best answer fr
    14·1 answer
  • What is the name of the compound CrPO4 • 5H2O?
    5·1 answer
  • Identify two ways that the rate of a chemical reaction could be increased
    14·1 answer
  • Which statements describe an interaction between the biosphere and the atmosphere related to photosynthesis? Select 2 correct ch
    15·2 answers
  • What is the freezing point (in °C) of a 0.743 m
    12·1 answer
  • HELP ME ASAP PLEASE LOTS OF POINTS
    5·1 answer
  • Calculate the mass of sodium hydroxide needed to make a 5.00L with a molarity of 0.400M​
    12·1 answer
  • If 5.85 moles of CaCO3 are used in an experiment, how many moles of carbon dioxide are created? (Be sure to include units in you
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!