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
s344n2d4d5 [400]
2 years ago
14

A sample of carbon dioxide is contained in a 250.0 mL flask at 0.930 atm and 15.4 °C. How many molecules of gas are in

Chemistry
1 answer:
Yanka [14]2 years ago
8 0

Answer:

We are given:

Volume (V) = 0.25 L

Pressure (P) = 0.93 atm

Temperature (T) = 15.4°C  OR   288.4 K

<u>Solving for the number of moles of CO₂:</u>

From the ideal gas equation:

PV = nRT

replacing the variables

0.93 * 0.25 = n (0.082)(288.4)

n = 0.00983 moles

<u>Number of molecules:</u>

Number of moles=  0.00983

number of molecules in 1 mole = 6.022 * 10²³

Number of molecules in 0.00983 moles = 0.00983 * 6.022 * 10²³

Number of molecules = 5.91 * 10²¹

You might be interested in
A/1 * B/C =D, You find yourself with 17 guilders (a gold coin) but you are planning on taking a trip to a country where the loca
Gemiola [76]

Exchange rate is 2 guilders for every 3 florins

The conversion factor will be

2 guilders / 3 florins = 3 florins / 2 guilders = 1

so if we wish to convert 17 guilders to florins we will use following conversion factor

3 florins / 2 guilders = B / C

D = 17guilders X 3 florins / 2 guilders = 25.5 florins

6 0
3 years ago
Read 2 more answers
If a chemist has 17.8 moles of N2H4O3, what is the mass of the sample?<br><br> show work plz
harkovskaia [24]

(\frac{17.8mole}{1} )( \frac{66grams}{1mole} ) \:  \:  \:  \:  17.8 \times 66 = 1.17 \times  {10}^{3} grams
the way that you get 66 is by adding he atomic mass unit of each atom in the formula. so N2 is 14 + 14 H4 is 1 * 4 and 03 is 16 * 3
4 0
2 years ago
Pleae help me I'm so confused <br>What is the velocity of a person that runs 40 km in 100 hours? ​
olga_2 [115]

Answer:

0.4 km/h  velocity is also the direction their going, in this case the person, that I'll name billy bob joe, is going in so yeh

Explanation:

give me brainliest?

3 0
2 years ago
Select the correct answer.
frozen [14]

Answer:

1.79x10^-14

Explanation:

pOH + pH = 14

H+=10^-pH

- Hope that helps! Please let me know if you need further explanation.

3 0
3 years ago
A) How many grams of water are produced when 2.50 g of aluminum
egoroff_w [7]
The correct answer is 13 I just did it bro
5 0
2 years ago
Other questions:
  • Write the electronic configuration of calcium oxide ​
    15·1 answer
  • What term best defines the splitting of nuclei into smaller fragments due to the bombardment of neutrons?
    10·1 answer
  • Arab cultures charted planets in the Dark Ages. Europeans helped establish the Sun-centered model of the solar system during the
    14·1 answer
  • Hydrogen and chlorine atoms react to form a simple diatomic molecule in a 1:1 ration, that is HCl. The percent isotopic abundanc
    7·1 answer
  • When you add a controlled amount of substance known as an impurity to a pure semiconductor, its conductivity increases. This pro
    12·1 answer
  • explian how you would separate mixtures of nitrogen and oxygen gases given that their boiling points are -196c and 186c respecti
    10·1 answer
  • What is the difference between a strong electrolyte and a weak electrolyte
    12·1 answer
  • I am he throws a softball through the air what are the different forces acting on the ball why it’s in the air
    6·1 answer
  • Need done ASAP HELP MEEE
    13·1 answer
  • How many grams are in 2.38 moles of AlCl₃?<br> please
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!