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
Vanyuwa [196]
3 years ago
7

Liquid nitrogen is used for: electrosurgery cryosurgery laser surgery

Chemistry
1 answer:
Otrada [13]3 years ago
4 0
Cryosurgery. You automatically know this because 'cryo' means ice or something cold, thus you can assume that it is that
You might be interested in
The solubility of oxygen in lakes high in the Rocky Mountains is affected by the altitude. If the solubility of O2 from the air
IceJOKER [234]

Answer:

1.75\cdot 10^{-4} M

Explanation:

Henry's law states that the solubility of a gas is directly proportional to its partial pressure. The equation may be written as:

S = k_H p^o

Where k_H is Henry's law constant.

Our strategy will be to identify the Henry's law constant for oxygen given the initial conditions and then use it to find the solubility at different conditions.

Given initially:

S_1 = 2.67\cdot 10^{-4} M

Also, at sea level, we have an atmospheric pressure of:

p = 1.00 atm

Given mole fraction:

\chi_{O_2} = 0.209

According to Dalton's law of partial pressures, the partial pressure of oxygen is equal to the product of its mole fraction and the total pressure:

p^o = \chi_{O_2} p

Then the equation becomes:

S_1 = k_H \chi_{O_2} p

Solve for k_H:

k_H = \frac{S_1}{\chi_{O_2} p} = \frac{2.67\cdot 10^{-4} M}{0.209\cdot 1.00 atm} = 0.001278 M/atm

Now we're given that at an altitude of 12,000 ft, the atmospheric pressure is now:

p = 0.657 atm

Apply Henry's law using the constant we found:

S_2 = k_H \chi_{O_2} p = 0.001278 M/atm\cdot 0.209\cdot 0.657 atm = 1.75\cdot 10^{-4} M

8 0
3 years ago
Which of the following units is used to measure force ?
Sati [7]
C.) Newton. & it's S.I. Unit of Force.

Hope this helps!
3 0
3 years ago
Read 2 more answers
What is the definition of Solvent
Helen [10]
A solvent (from the Latin solvō, "I loosen, untie, I solve") is a substance that dissolves a solute (a chemically distinct liquid, solid or gas), resulting in a solution. A solvent is usually a liquid but can also be a solid or a gas. The quantity of solute that can dissolve in a specific volume of solvent varies with temperature. Common uses for organic solvents are in dry cleaning (e.g., tetrachloroethylene), as paint thinners (e.g., toluene, turpentine), as nail polish removers and glue solvents (acetone, methyl acetate, ethyl acetate), in spot removers (e.g., hexane, petrol ether), in detergents (citrus terpenes) and in perfumes (ethanol). Water is a solvent for polar molecules and the most common solvent used by living things; all the ions and proteins in a cell are dissolved in water within a cell. Solvents find various applications in chemical, pharmaceutical, oil, and gas industries, including in chemical syntheses and purification processes.


source: wikapedia
4 0
3 years ago
Read 2 more answers
Carbon burns in the presence of oxygen to give carbon dioxide. Which chemical equation describes this reaction?
Alex73 [517]
Your answer is B.
Because it says that that carbon burns in presence of oxygen (C+O) which is equal ( => ) to Carbon Dioxide (CO_{2})
3 0
3 years ago
Read 2 more answers
Two knots is equal to:
Sloan [31]

Answer:

2.30156

Explanation:

6 0
3 years ago
Read 2 more answers
Other questions:
  • Please help with these asap
    13·1 answer
  • The molar solubility of magnesium carbonate Mg(CO3) is 1.8 x 10-4 mol/L. What is the Ksp for this compound?
    6·1 answer
  • If a temperature increase from 12.0 ∘c to 22.0 ∘c doubles the rate constant for a reaction, what is the value of the activation
    5·1 answer
  • Carbonated drinks in cans have a small amount of space above the liquid level inside the can known as
    13·2 answers
  • A tank contains 50 kg of salt and 1000 L of water. Pure water enters a tank at the rate 6 L/min. The solution is mixed and drain
    5·1 answer
  • A car is traveling 150 km in 7200 s what is the speed of the car
    7·1 answer
  • Velocity may be expressed in which I f the following units?
    9·1 answer
  • Daffodil is ordering office supplies for her company. When she tries to order pencils, she finds that pencils are sold by the gr
    13·1 answer
  • Which 3 characteristics are used to describe all waves, regardless of type? Check all that apply.
    5·2 answers
  • How is the polarity of a bond different from the polarity of a molecule?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!