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
FinnZ [79.3K]
2 years ago
15

The pressure of a sample of gas is measured at sea level with an open-end mercury manometer, and the liquid level is 13.7 cm hig

her on the left side than the liquid level on the right side (assume the gas chamber is on the left side).
Assuming atmospheric pressure is 760.0 mm Hg, determine the pressure of the gas in mm Hg.


83.1 mmHg


623 mmHg


0.820 mmHg


83,100 mmHg
Chemistry
1 answer:
docker41 [41]2 years ago
7 0

The manometer is the device used to measure the pressure exerted by the gas and the liquids. At a pressure of 760 mmHg, the pressure of a gas is 623 mm Hg. Thus, option b is correct.

<h3>What is a manometer?</h3>

A manometer is an instrument used to estimate the pressure of the gauge and not the atmosphere.

Given,

Atmospheric pressure (P atm) = 760 mmHg

Height of the mercury column (P Hg) = 137 mm Hg

Substituting values,

P atm = P gas + P Hg

P gas = P atm - P Hg

P gas = 760 mm Hg - 137 mm Hg

= 623 mm Hg

Therefore, option b. 623 mm Hg is the pressure of the gas.

Learn more about manometer here:

brainly.com/question/17166380

#SPJ1

You might be interested in
aspirin C6H4(CO2)(CO2CH3),can be prepared in the chemistry laboratory by the reactions of salicylic acid, C6H4(CO2H)(OH),with ac
Ket [755]
262mol 1=kg
g=1000
from stoichoimetry

x=102*1000/360
x=102000/360
x=283.33

density =m/v
=283.33/1.082
=262mol

8 0
3 years ago
PLEASE HELP !!!! This is a models of chemistry question
lora16 [44]

Answer:

The 2.8 hrs one i think???

hope this helps

Explanation:

7 0
2 years ago
A chemist has to prepare 250.0 mL of a 0.300 M Na2SO4(aq) solution. What mass, in grams, of sodium sulfate (formula mass 142.05
Sedbober [7]

The mass of sodium sulphate, Na₂SO₄, required to prepare the solution is 10.65 g

<h3>How to determine the mole of sodium sulphate Na₂SO₄</h3>
  • Volume = 250 mL = 250 / 1000 = 0.25 L
  • Molarity = 0.3 M
  • Mole of Na₂SO₄ =?

Mole = Molarity x Volume

Mole of Na₂SO₄ = 0.3 × 0.25

Mole of Na₂SO₄ = 0.075 mole

<h3>How to determine the mass of sodium sulphate Na₂SO₄</h3>
  • Molar mass of Na₂SO₄ = 142.05 g/mol
  • Mole of Na₂SO₄ = 0.075 mole
  • Mass of Na₂SO₄ =?

Mass = mole × molar mass

Mass of Na₂SO₄ = 0.075 × 142.05

Mass of Na₂SO₄ = 10.65 g

Thus, 10.65 g of Na₂SO₄ is needed to prepare the solution.

Learn more about molarity:

brainly.com/question/15370276

6 0
1 year ago
A neutral pH level is _____.<br> 5<br> 7<br> 8
love history [14]
Neutral pH is level 7
5 0
2 years ago
A 100-meter sprint is a race using only the straight side of a racetrack. A 400-meter sprint is a race that makes one complete l
Neporo4naja [7]
For 100m Race ,
displacement = distance covered .
divide the above equation by time t (assuming it takes t time to complete 100m race),
we get,
velocity = speed.
and for 400m race 1 lap is completed this means that racer's initial and final position coincide (or same) hence,
displacement = 0,
distance ≠0=400m.
=> displacement ≠distance.
=> velocity ≠ speed.
7 0
3 years ago
Other questions:
  • If 5.400 g of c6h6 is burned and the heat produced from the burning is added to 5691 g of water at 21 °c, what is the final temp
    5·2 answers
  • What is the average speed vavg of the molecules in the gas? express your answer numerically to three significant digits?
    6·1 answer
  • 11. If four gases in a cylinder each exert 6 atm, what is the total pressure exerted by the
    6·1 answer
  • Where can fire might be used as a management tool ?
    9·1 answer
  • Spindle fibers break down during what phase?
    14·2 answers
  • Does ice particles have high interparticle force of attraction? Justify your answer.<br> please and
    14·1 answer
  • Which atom has a mass of 12 u
    7·2 answers
  • Does somebody know the answer ?
    12·1 answer
  • Identify the element represented by 8135X.
    9·1 answer
  • A potted plant is placed under a grow lamp, which provides 6,400 J of energy to the plant and the soil over the course of an hou
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!