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
Why is oxygen crucial to living things?
KATRIN_1 [288]
Oxygen is something that activated Cellar Reapiration that convets nutrients into energy (ATP).
6 0
3 years ago
What is an electrochemical cell?
vredina [299]

A. Two electrodes separated by an electrolyte that can generate an electrical current.

3 0
3 years ago
Read 2 more answers
Find the mass of 3.00 mol of acetic acid, C2H4O2.
Alexeev081 [22]
Molar mass 

C₂H₄O₂  = 60.0 g/mol

n = mass / molar mass

3.00 = mass / 60.0

m = 3.00 * 60.0

m = 180 g of <span>C₂H₄O₂ 

hope this helps!</span>
5 0
3 years ago
the element carbon has two common isotopes: C-12 (12 U) AND C-13 (13.003355 U). IF THE AVERAGE ATOMIC MASS OF CARBON IS 12.0107
oksian1 [2.3K]

Answer:

The percent isotopic abundance of C- 12 is 98.93 %

The percent isotopic abundance of C- 13 is 1.07 %

Explanation:

we know there are two naturally occurring isotopes of carbon, C-12 (12u)  and C-13 (13.003355)

First of all we will set the fraction for both isotopes

X for the isotopes having mass 13.003355

1-x for isotopes having mass 12

The average atomic mass of carbon is 12.0107

we will use the following equation,

13.003355x + 12 (1-x) = 12.0107

13.003355x + 12 - 12x = 12.0107

13.003355x- 12x = 12.0107 -12

1.003355x = 0.0107

x= 0.0107/1.003355

x= 0.0107

0.0107 × 100 = 1.07 %

1.07 % is abundance of C-13 because we solve the fraction x.

now we will calculate the abundance of C-12.

(1-x)

1-0.0107 =0.9893

0.9893 × 100= 98.93 %

98.93 % for C-12.

7 0
3 years ago
Consider the reaction pathway graph below.
Alex17521 [72]
Hello!

The reaction that the graph represents is A. Exothermic because Hrxn=-167 kJ

To calculate Hrxn we apply the following equation:

Hrxn=Hproducts-Hreagents=-625kJ-(-458kJ)=-167kJ

Looking at the graph, and at the result of the calculations, we can see that the enthalpy of the products is lower than the enthalpy of the reagents, because the sign is negative. That means that the reaction releases energy in the form of heat and that the reaction is exothermic.

Have a nice day!
6 0
3 years ago
Other questions:
  • Of which tissue is the dermis composed of?
    8·1 answer
  • What is happening to the temperature/pressure during the Deposition Change of State?
    12·1 answer
  • What food group deficiency causes kwashiorkor?? I’ll give 15points
    6·2 answers
  • How do covalent bonds form?
    7·2 answers
  • What are the principal alloy elements of an AISI 4340 steel? How much carbon does it have? Is it hardenable? By what techniques?
    14·1 answer
  • Which of these substances most likely dissolve in water? Check all that apply.
    6·1 answer
  • The number of moles of aluminum oxide. Urgent!!!! Please.
    13·1 answer
  • A student calculates that the volume of his textbook is 991.880 cm3. what is the volume written with 3 significant figures?
    5·1 answer
  • How much heat (in kJ k J ) is evolved in converting 2.00 mol m o l of steam at 135 ∘C ∘ C to ice at -42 ∘C ∘ C ? The heat capaci
    12·1 answer
  • helium and hydrogen gas are at an unknown ambient temperature, x. given this information, fill in the blanks below. simplify you
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!