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
Alborosie
2 years ago
14

What is the molecular mass of a gas whose density is 1.25 grams per liter at STP?

Chemistry
1 answer:
satela [25.4K]2 years ago
6 0

STP = standard temperature and pressure

Use the formula:

d = MP/RT

where:

d = density = 1.25 g/L

M = molar mass (unknown)

P = pressure = 1 atm (standard pressure)

R = universal gas constant = 0.8206 L*atm/mol*K

T = temperature = 0C or 293.15 K (standard temperature)

1.25 g/L = M*(1 atm)/(0.08206 L*atm/mol*K)*(273.15 K)

M = 28.0 grams/mol

You might be interested in
What is a maximum negative displacement of a wave
AnnZ [28]

The maximum negative displacement of a wave is the same as its amplitude.

As a wave travels through space, its particles are sometimes above the

<em>x</em>-axis (+) and sometimes below it (-).

The maximum displacement from the axis is the <em>amplitude</em> of the wave.

The amplitude of the wave is the <em>same in both the positive and negative directions</em>.

5 0
3 years ago
How does an increase in temperature affect the equilibrium concentration of the underlined substance and K for each of the follo
Darya [45]

Explanation:

Due to the positive value of the change in temperature, this is an endothermic reaction.

Since the forward reaction is endothermic, increasing the temperature increases the equilibrium constant (k).

In an equilibrium system, the position of the equilibrium will move in a way to annul the change made to the system. An increase in temperature for an endothermic reaction would favour the reaction, leading to increase in amount of products and decrease in amount of reactants.

3 0
3 years ago
The most common element in the atmosphere are
Ivanshal [37]
Nitrogen and oxygen are the most prevalent in the atmosphere.
8 0
3 years ago
Which substance has a definite shape and definite volume?
tino4ka555 [31]

Answer:

D iced tea

Explanation:

right answers

3 0
2 years ago
Which organ has cells that produce pepsin which break down protein
WINSTONCH [101]

Answer:

stomach

Explanation:

8 0
3 years ago
Other questions:
  • The heat of vaporization, ΔHvap of carbon tetrachloride (CCl4) is 43000 J/mol at 25 °C. 1 mol of liquid CCl4 has an entropy of 2
    5·1 answer
  • What is the electron structure of nitrogen?
    13·2 answers
  • Fill in the coefficients that will balance the following reaction: a0NH4Cl + a1Ag3PO4 → a2AgCl + a3(NH4)3PO4
    7·2 answers
  • Sooo i suck at science like a lot . even tho i have a 70....can someone help me pls?
    15·1 answer
  • Non example of electrical energy
    15·1 answer
  • 9. In the reaction of sodium hydroxide with chlorine gas, sodium chloride, sodium hypochlorite, and water a
    11·1 answer
  • Please help me !!! im failing :(
    12·1 answer
  • How/why is maintaining healthy soil a social justice issue for our area and community
    8·1 answer
  • BRAINLIESIT IF CORRECT<br><br><br><br><br> 8
    15·2 answers
  • Write an introductory text about metals, adding details you know
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!