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
Irina18 [472]
3 years ago
11

A flask containing neon gas is connected to an open-endedmercury manometer. The open end is exposed to the atmosphere, wherethe

prevailing pressure is 745 torr. The mercury level in the openarm is 50 mm below that in the arm connected to the flask of neon.What is the neon pressure, in torr?
A. -50 torr

B. 50 torr

C. 695 torr

D. 795 torr

E. None of these choices is correct.
Chemistry
1 answer:
Tasya [4]3 years ago
5 0

Answer: Option (C) is the correct answer.

Explanation:

The given data is as follows.

          P_{bar} = 745 torr

          \Delta P = - 50 (the value is negative because on the open side its level is lower than the side connected to the gas)

Now, formula to calculate the pressure of neon gas will be as follows.

                 P_{neon} = P_{bar} + \Delta P            

Putting the given values into the above formula as follows.

               P_{neon} = P_{bar} + \Delta P        

                   = 745 torr + (- 50 torr)            

                   = 695 torr

Thus, we can conclude that the neon pressure is 695 torr.

You might be interested in
Define the "half-life" of a radioisotope
elena55 [62]
The amount of time it takes for 1/2 of it to decay or dissapear

this is liike compound interest because it takes the same amount of time to decay 1/2 of it, regardless of the amount

example

lets say half life of element x is 1 year
if yo has 32 grams, after  1 year, it decays to 16g
2 years decays to 8
3 years decays to 4
4 years decays to 2
5 years decays to 1
etc

hope this helps (I'm not the best at chem)
8 0
3 years ago
Label each of the descriptions below as theoretical
anzhelika [568]

Answer:

Before performing chemical reactions, it is helpful to know how much product will be produced with given quantities of reactants. This is known as the theoretical yield. This is a strategy to use when calculating the theoretical yield of a chemical reaction. The same strategy can be applied to determine the amount of each reagent needed to produce a desired amount of product.

Explanation:

Reagent Examples

Reagents may be compounds or mixtures. In organic chemistry, most are small organic molecules or inorganic compounds. Examples of reagents include Grignard reagent, Tollens' reagent, Fehling's reagent, Collins reagent, and Fenton's reagent. However, a substance may be used as a reagent without having the word in its name.

3 0
3 years ago
Read 2 more answers
Which of the following vertebrates evolved in the Carboniferous period?
topjm [15]
Reptiles arose during the Carboniferous period. Therefore making the answer Reptiles
6 0
2 years ago
Read 2 more answers
How many grams are in 8.3 moles of CaCl2?
r-ruslan [8.4K]

Answer:

(8.3×40)+(8.3×71)

921.3grames

3 0
2 years ago
Read 2 more answers
a swimming pool is 50 meters long. each day a swimmer swam total of 75 lengths of the pool for practice. how many kilometers did
Brilliant_brown [7]
50x75=3750 -- metres per day
3750x15=56250 -- metres in 15 days

Divide by 1000 to convert to km
56.250km
<u>56.25km</u>
8 0
2 years ago
Other questions:
  • Why does sulfur have more than 8 electrons in its valence?
    11·1 answer
  • Convert 3.65 moles to molecules ( 6.02* 10^23= 1 mole)
    9·1 answer
  • Classify each of the following pure substances as an element or a compound. a. helium gas (He) b. mercury (Hg) in a thermometer
    9·1 answer
  • Wind is related to the movement of warm and cold air masses. Which kind of heat transfer does this represent?
    15·1 answer
  • When magma reaches the surface gases what out of it
    7·1 answer
  • Can any kind soul help me please<br><br><br>RELATIVE FORMULA MASS​
    10·1 answer
  • Some scientists believe that life on Earth may have originated near deep-ocean vents. Balance the following reactions, which are
    11·2 answers
  • When energy changes forms there is always some thermal energy that is produced that cannot be used. what type of energy is it?
    6·1 answer
  • According to the following reaction, how many moles of hydrobromic acid are necessary to form 0.274 moles bromine?
    6·1 answer
  • You need to prepare 500 mL of a 0.250 M NaOH solution for a titration. What mass of NaOH is needed to
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!