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
11111nata11111 [884]
3 years ago
9

Type the correct answer in the box. Express your answer to three significant figures. A balloon is filled with 0.250 mole of air

at 35°C. If the volume of the balloon is 6.23 liters, what is the absolute pressure of the air in the balloon? The absolute pressure of the air in the balloon is kilopascals.
Chemistry
1 answer:
Setler79 [48]3 years ago
7 0

Answer:

102.8 kPa.

Explanation:

  • We can use the general law of ideal gas: <em>PV = nRT.</em>

where, P is the pressure of the gas in atm (P = ??? atm).  

V is the volume of the gas in L (V = 4000 mL = 6.23 L).  

n is the no. of moles of the gas in mol (n = 0.25 mol).

R is the general gas constant (R = 0.0821 L.atm/mol.K),  

T is the temperature of the gas in K (T = 35ºC + 273 = 308 K).

∴ P = nRT/V = (0.25 mol)(0.0821 L.atm/mol.K)(308 K)/(6.23 L) = 1.015 atm.

  • To convert to kPa:

<em><u>multiply the pressure value by 101.325 </u></em>

∴ P = (1.0 atm)(101.325 kPa/1.0 atm) = 102.8 kPa.

You might be interested in
ASAP
Nadya [2.5K]

Answer:

12 %

Explanation:

Produces 15 J of work for input 125 J

15/125 * 100% = 12%

5 0
1 year ago
Where are stars that are in their giant or super giant stages located on the Hertzsprung-Russell diagram?
maxonik [38]
I’m pretty sure it’s A) upper right!
3 0
3 years ago
Which of these describes an ethical dilemma that drug designers could face?
LenKa [72]

The statement 'whether people should take medicine or if they should seek alternative treatments' describes an ethical dilemma that drug designers face.

<h3>What is drug development?</h3>

Drug development refers to all the processes from target drug identification to drug validation and commercialization.

Drug development involves different stages of development including preclinical and clinical trials.

Ethical dilemmas in drug development include the release of a drug that is ineffective when compared to parallel treatments.

Learn more about drug development here:

brainly.com/question/8187660

4 0
2 years ago
Why is a crystal of Strontium chloride described as an extended structure?
olchik [2.2K]

Answer:

Explanation:

Chloride is described as an extended structure because its atoms are arranged following an endless repeating pattern and are of distinct ratio

Crystals and polymers mostly form extended structures as seen in the formation of sodium chloride whereby the ions in the compound are arranged following a repeating pattern. ( i.e. has a giant ionic structure ).

Chloride is a considered an extended structure because in sodium chloride it forms an unending repeated pattern of ions which makes it a perfect example of an extended structure.

Hence we can conclude that Chloride can be described as an extended structure because its atoms are arranged following a repeating pattern and are of distinct ratio.

5 0
2 years ago
Which of the following is the most electronegative element?
Kipish [7]
None of these; the most electronegative element is fluorine because an atom of fluorine needs an additional electron to join it's outer membrane, so the atom can achieve stability.

a flourine atom on its own is always a negative ion.


7 0
3 years ago
Other questions:
  • #1: What is the charge on an electrically neutral atom of hydrogen?
    15·2 answers
  • a cadillac escalade has a mass of 2.569 kg if it acceleratesat 4.65m/s what is the net force on the car
    12·1 answer
  • Which factor is most likely to contribute to the evolution of a species?
    15·2 answers
  • Which of the following lists includes only molecules?
    6·1 answer
  • "Calculate the number of millimoles in 500 mg of each of the following amino acids: alanine (MW = 89), leucine (131), tryptophan
    13·1 answer
  • How does a large body of water, such as the ocean, influence climate?
    14·2 answers
  • What is the driving force for the movement of earths plates?
    9·1 answer
  • Which description refers to cirrus clouds?
    5·2 answers
  • Which statement correctly compares the masses of subatomic particles in an atom such as carbon?
    11·1 answer
  • I need help I don’t understand this and it’s due tmr!
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!