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
OLga [1]
3 years ago
10

The density of air under ordinary conditions at 25 degrees * C is 1.19g / L . How many kilograms of air are in a room that measu

res 9.0ft * 11.0ft and has a 10.0 ft ceiling?
Chemistry
1 answer:
professor190 [17]3 years ago
5 0

Answer:

33.3 kg of air

Explanation:

This is a problem of conversion unit.

Density is mass / volume

Therefore we have to calculate the volume in the room, to be multiply by density. That answer will be the mass of air.

Volume of the room → 9 ft . 11 ft . 10 ft = 990 ft³

Density is in g/L, therefore we have to convert the ft³ to dm³ (1 dm³ = 1L)

990 ft³ . 28.3 dm³ / 1ft³ = 28017 dm³ → 28017 L

This is the volume of the room, if we replace it in the density formula we can know the mass of air in g.

1.19 g/L = Mass of air / 28017 L

Mass of air = 28017 L .  1.19 g/L → 33340 g of air

Finally, let's convert the mass in g to kg → 33340 g . 1kg / 1000 g = 33.3 kg

You might be interested in
What kind of molecule is table sugar? a. Monosaccharide c. Trisaccharide b. Disaccharide d. Octosaccharide
Aleksandr-060686 [28]
Table sugar is a
B. Disaccharide
3 0
3 years ago
Under certain conditions, the equilibrium constant of the reaction below is Kc=1.7×10−3. If the reaction begins with a concentra
svetoff [14.1K]

Answer:

[Cl2] equilibrium = 0.0089 M

Explanation:

<u>Given:</u>

[SbCl5] = 0 M

[SbCl3] = [Cl2] = 0.0546 M

Kc = 1.7*10^-3

<u>To determine:</u>

The equilibrium concentration of Cl2

<u>Calculation:</u>

Set-up an ICE table for the given reaction:

               SbCl5(g)\rightleftharpoons SbCl3(g)+Cl2(g)

I                 0                    0.0546     0.0546

C              +x                        -x               -x

E               x                  (0.0546-x)    (0.0546-x)

Kc = \frac{[SbCl3][Cl2]}{[SbCl5]}\\\\1.7*10^{-3} =\frac{(0.0546-x)^{2} }{x} \\\\x = 0.0457 M

The equilibrium concentration of Cl2 is:

= 0.0546-x = 0.0546-0.0457 = 0.0089 M

5 0
3 years ago
Read 2 more answers
The ___ of a bottle tells you how much liquid it can hold. what is the anewer
Sonbull [250]

Answer:

Volume

Explanation:

Volume is how much of a substance something can hold!

Hope this helped, have a nice day! :)

5 0
2 years ago
Read 2 more answers
NaCl + H2O → NaOH + Cl2 + H2 How many grams of chlorine gas, Cl2 are given off if 7.5 grams of sodium chloride, NaCl, are decomp
german
Yes BC ther is a equal amount of sodiam
3 0
3 years ago
Name careers that find cures for diseases
Y_Kistochka [10]
Any type of medical scientist works.
6 0
3 years ago
Read 2 more answers
Other questions:
  • The best way to explain the relationships in a nuclear reaction is by using:
    5·2 answers
  • How many moles of MgS2O3 are in 201g of the compound?
    15·1 answer
  • RED LIGHT EMITTED BY A LASER HAS A WAVELENGTH OF 588 NANOMETERS?WHAT IS ITS FREQUENCY?
    5·1 answer
  • A tire at 21°C has a pressure of 0.82 atm. Its temperature decreases to –3.5°C. If there is no volume change in the tire, what i
    6·1 answer
  • What effect does a catalyst have on a system in equilibrium?
    6·2 answers
  • What is the cloud of gases that forms around the nucleus of a comet called?
    5·1 answer
  • Potassium (K) and calcium fluoride (CaF2) can both be classified as<br> (Please help)
    6·1 answer
  • A Weather man reports
    15·1 answer
  • The diagrams show the arrangements of carbon atoms in diamond and in graphite. Compare a use of diamond with a use of graphite,
    7·1 answer
  • 2. Circle all of the following that change with the temperature of a reaction.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!