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
PilotLPTM [1.2K]
3 years ago
12

why is the concentration of helium increased in some gas mixtures that divers breath in order to reduce the partial pressure of

oxygen?
Chemistry
1 answer:
sdas [7]3 years ago
8 0

Answer:

Because of oxygen toxicity.

Explanation:

Oxygen toxicity.

Oxygen has been known to cause central nervous system (CNS) toxicity when the pressure gets higher. This toxicity can cause convulsions, and this can cause the diver to drown.

The current standard maximum safe oxygen working pressure is 1.4 atm ppO2. This is equal to 56.5m/185′ when breathing air (21% O2 / 79% N). Below that depth the fraction of oxygen in a breathing gas must be reduced, and in order to maintain this maximum pressure of 1.4 ppO2, Helium must be added.

You might be interested in
A physical change is when the atoms combine to create a new product.
Tasya [4]
False. A physical change does not create a new substance.
8 0
3 years ago
You are studying the equilibirum between S8 and S2 gases at 0 celcius, you place a smaple of s2 in an otherwise empty, rigid con
Rainbow [258]

Answer:

Kp and Kc are 0.01266 and 145.17, respectively.

Explanation:

Please check document attached.

Download docx
5 0
3 years ago
Convert 682000000000 kmol to Tmol
Elena-2011 [213]

Answer:

682 teramoles

Explanation:

5 0
3 years ago
Read 2 more answers
Accidentally sent a message! never mind
stealth61 [152]
So it’s OKAYYYYY ITS OKAYYYY
5 0
3 years ago
The total concentration of ions in a 0.75 M solution of HCl is
EastWind [94]
<h3>Answer:</h3>

The total concentration of ions in a 0.75 M solution of HCl is 1.5 M

That is; 0.75 M H⁺ and 0.75 M Cl⁻

<h3>Explanation:</h3>
  • Concentration or molarity is the number of moles of a compound or an ion contained in one liter of solution. It is measured in moles per liter (M).
  • The concentration of ions making a compound is determined by the ratio of moles of the compound and the constituents ions.
  • For instance, HCl dissociates to give H⁺ and Cl⁻

       HCl(aq) → H⁺(aq) + Cl⁻(aq)

  • Therefore, since the mole ratio between HCl and the constituent ions H⁺ and Cl⁻ is 1:1, then 0.75 M of HCl dissociates to give 0.75 M H⁺ and 0.75 m Cl⁻
  • Hence the total concentration of ions in a 0.75 M solution of HCl is 1.5 M (0.75 M H⁺ and 0.75 M Cl⁻)
4 0
3 years ago
Other questions:
  • An adult rhino xan have a mass of 1400 kg the mass of a small egret is about 0.76kg. what is the radio of these two masses? how
    11·1 answer
  • Rfggxchhgfdxvnjgdzvbhdazcbhds
    15·1 answer
  • A compound of nitrogen and oxygen is 30.46 percent by mass of N and 69.54 percent by mass O. The molar mass if the compound was
    8·1 answer
  • The natural abundance of 3he is 0.000137 %. how many protons, neutrons, and electrons are in an atom of 3he?
    11·1 answer
  • The boiling point of a substance is a chemical property true or false​
    14·2 answers
  • A tank containing both HF and HBr gases developed a leak. The ratio of the rate of effusion of HF to the rate of effusion of HBr
    10·2 answers
  • After Pangaea broke up, North America became part of what?
    9·1 answer
  • What is the value of k for this aqueous reaction at 298 k?
    15·1 answer
  • What type of relationship exists between birds and trees
    5·1 answer
  • 3. What is an<br>electrolyte?​
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!