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
ioda
3 years ago
14

A sample of helium gas has a volume of 2.0 L at a pressure of 4.0 atm. What is the volume of gas at 380 mmHg

Chemistry
1 answer:
Lilit [14]3 years ago
5 0
From equation;
P1V1=P2V2
V2=P1V1÷P2
since P2=380mmHg
now;1atm=760mmHg
how about 380mmHg is equal to how many atm?
380×1÷760=0.5atm
P2 now is equal to 0.5atm
back from equation;
P1V1=P2V2
V2=P1V1÷P2
V2=4.0atm×2.0L÷0.5atm
V2=16L
therefore V2=16L.
You might be interested in
For an ideal gas condition, what is the mass (g) of N2 if the pressure is 2.0 atm, the volume is 25 mL and the temperature is 29
Alchen [17]

Answer:

THE MASS OF NITROGEN GAS IN THIS CONDITIONS IS 0.0589 g

Explanation:

In an ideal condition

PV = nRT or PV = MRT/ MM where:

M = mass = unknown

MM =molar mass = 28 g/mol

P = pressure = 2 atm

V = volume = 25 mL = 0.025 L

R = gas constant = 0.082 L atm/mol K

T = temperature = 290 K

n = number of moles

The gas in the question is nitrogen gas

Molar mass of nitrogen gas = 14 * 2 = 28 g/mol

Then equating the variables and solving for M, we have

M = PV MM/ RT

M = 2 * 0.025 * 28 / 0.082 * 290

M = 1.4 / 23.78

M = 0.0589 g

The mass of the nitrogen gas at ideal conditions of 2 atm, 25 mL volume and 290 K temperature is 0.0589 g

3 0
3 years ago
Marvin records scientific data about Lake Superior. For which property has Marvin forgotten to use an SI unit of measurement?
Illusion [34]

Answer: low temperature

Explanation:-

S.I or M.K.S is a system for defining physical units as meter, kilogram, second, ampere, kelvin or celcius, candela, and mole together with a set of prefixes to indicate multiplication or division by a power of ten for measuring length, mass, time , current, temperature and amount of substance respectively.

Given :

lake length = 563 kilometers = 563\times 10^3m

High temperature =76.5^0F

Low temperature =-6.3^0C

annual precipitation =762 mm= 762\times 10^{-3}m

Thus low temperature in units of Fahrenheit is not an S.I unit of measurement.

8 0
3 years ago
Read 2 more answers
Of the different states of matter listed below, which is typically the most dense?
stiv31 [10]
The correct answer is option B. The most dense phase of matter is the solid phase and the least dense are gases. However, there is an exception. Water is the exception. Solid water or ice is less dense than the liquid phase therefore it floats on liquid water.
7 0
3 years ago
Read 2 more answers
What is milk best described as? solution, suspension, compound, or colloid?
Debora [2.8K]
Milk is a complex colloidal system.
7 0
4 years ago
How to turn form moles to grams​
miss Akunina [59]
Turning things to gram so need to convert to the metric system
5 0
3 years ago
Read 2 more answers
Other questions:
  • Jose and Sarah are running in the cross country meet. Their skeletal and muscular systems work to move them through the course.
    7·1 answer
  • What are the uses of zinc
    12·2 answers
  • Which of the following describes a difference between galaxies and solar systems? A. Galaxies contain only moons, while solar sy
    13·2 answers
  • A cube measures 3.0 cm on each side has a mass of 25g. What is the density of a cube?
    9·1 answer
  • A reaction progress curve has three peaks and two valleys between the peaks. this curve describes a reaction mechanism that invo
    7·1 answer
  • Convert a volume of 3.5 m3 to cubic centimeters.
    15·1 answer
  • The electron cloud of HF is smaller than that of F2, however, HF has a much higher boiling point than F2 has. Which of the follo
    13·1 answer
  • (Pls help i will give brainlyest) Label the missing parts of the diagram.
    13·1 answer
  • List 3 chemical compositions of magma <br> (Earth science)
    15·2 answers
  • (b) on the graph above, carefully draw three curves, one for each of the three gases, starting from the initial point you drew i
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!