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
swat32
3 years ago
13

A sealed vessel containg helium, chlorine and fluorine has a total pressure of 205 kpa and partial pressures of 15 kpa for chlor

ine and 89 kpa for fluorine. what is the pressure for helium in kpa
Chemistry
1 answer:
MrRa [10]3 years ago
7 0

According to Dalton's law of partial pressure

The total pressure of a mixture of ideal gases is sum of the partial pressures of each gas present in the mixture

So if we know the partial pressure of all the gases we can determine the total pressure of the mxiture by adding all of them.

Thus

Ptotal = PCl2 + PF2 + PHe

Thus

Partial pressure of helium = 205 - ( 89 + 15) = 101 kPa

You might be interested in
Describe the basic structure of the atom
aleksley [76]

An atom has a nucleus and is made up of protons neutrons and electrons

7 0
3 years ago
Based on lewis structure analysis, what is the formal charge of the central atom in clf3
MArishka [77]
Formal Charge is calculated as, Lewis structure is attached below,

Formal Charge  =  [# of valence electrons] - [electrons in lone pairs + 1/2 the                                     number of bonding electrons]

# of valence electrons of Cl  = 7

electrons in lone pairs  =  4

number of bonding electrons  =  6

Formal Charge  =  [7] - [4 + 6/2]

Formal Charge  =  [7] - [4 + 3]

Formal Charge  =  [7] - [7]

Formal Charge  =  0

Result:
           Formal charge on Cl in ClF₃ is zero.

4 0
3 years ago
Please help!!! I will mark you brainiest!!!
shepuryov [24]

Answer:

Some positive effects of using synthetic plastic is that scientist can make it softer and biodegradable so that nature can break it down and destroy it so it won't affect the environment. And scientist can also make stronger and tougher in products so they can last longer.

Explanation:

3 0
2 years ago
During an investigation, hair samples are taken from either the head or pubic area of a victim.
BabaBlast [244]

Answer:

A. True

Explanation:

it is possible to identify a hair as originating from a particular body area, the regions of the body that are primarily used in forensic comparisons are the head and pubic areas.

Forensic = the application of scientific methods and techniques to natters investigation by a court of law.

7 0
2 years ago
Which term names how clouds form by the collection of water vapor in the atmosphere? A. evaporation B. condensation C. precipita
cluponka [151]
The answer is B. Condensation
5 0
3 years ago
Other questions:
  • Correct answer to this easy question gets brainliest
    15·2 answers
  • An element that is likely to have this property is; A. bromine B. carbon C. sodium D. tellurium ?
    12·2 answers
  • Write a balanced equation for the complete combustion of pentane, c5h12. do not enter phase symbols. enter the alkane formula as
    14·1 answer
  • The number of d-electrons in Fe2+ (Z = 26) is not equal to that of
    12·2 answers
  • What are scientific models used for? Give an example of each of the follwoing types of models: idea, physical, computer
    8·1 answer
  • How many moles of hcl are produced from a reaction with 6.2 moles of h2 given the following equation
    10·1 answer
  • Which represents the empirical formula for a3B9
    8·1 answer
  • 101.325 kPa = 760 mmHg. So, 25.0 kPa is
    11·1 answer
  • Name the organic compound of ch3chohch2ch3
    10·1 answer
  • Mike and Mariah are in the same science class. Mike wants to know how the water cycle transports energy and matter. Which of the
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!