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
frozen [14]
3 years ago
6

A pressure cooker contains 5.68 liters of air at a temperature of 394 K. If the absolute pressure of the air in the pressure coo

ker is 205 pascals, how many moles of air are in the cooker? The cooker contains _______ moles of air. 1 SEE ANSWER
Chemistry
1 answer:
Arturiano [62]3 years ago
7 0

Answer:

Explanation:

We shall find out volume of air at NTP or at 273 K and 10⁵ Pa ( 1 atm )

Let it be V₂

\frac{P_1V_1}{T_1} =\frac{P_2V_2}{T_2}

\frac{2\times 10^5\times 5.68}{394} =\frac{10^5\times V_2}{273}

V₂ = 7.87 litres

22.4 litres of any gas is equivalent to 1 mole

7.87 litres of air will be equivalent to

7.87 / 22.4 moles

= .35 moles .

You might be interested in
Solve for V2 when P1 = 1.0 atm V1 = 22.4 L and P2 = 4.0 atm <br> This is a Boyle’s law gas problem
morpeh [17]
P1/V1=P2/V2
1/22.4=4/x
X=4 multiple by 22.4
V2=89.6L
3 0
3 years ago
If a gold bar is 16,000 g mass and 800 cm^3 volume what is the density?
ki77a [65]

Answer:

<h3>The answer is 20 g/cm³</h3>

Explanation:

The density of a substance can be found by using the formula

density =  \frac{mass}{volume} \\

From the question

mass = 16,000 g

volume = 800 cm³

We have

density =  \frac{16000}{800}  =  \frac{160}{8}  \\

We have the final answer as

<h3>20 g/cm³</h3>

Hope this helps you

5 0
3 years ago
The process where all chemical reactions within organisms enable them to maintain life is known as
bulgar [2K]
The answer is the option d. metabolism.

Metabolism is the set of the chemical reactions that happens in the organism to transform nutrients (food) in energy and the products that conform the cells and all the constituents of the body.
5 0
3 years ago
Read 2 more answers
Which of the following elements has the largest atomic radius?
Pachacha [2.7K]

Answer:

nitrogen

Explanation:

as the group number increases, the atomic radius decreases

3 0
3 years ago
3 Na2O(aq) + 2 Al(NO3)3(aq) ----&gt; _ Compound A + _ Compound B
Olin [163]
3Na2O(at) + 2Al(NO3)3(aq) —> 6NaNO3(aq) + Al2O3(s)

This is a double replacement reaction and NaNO3 is aqueous because Na is an alkali metal, plus nitrate is in the solution. Both of these are soluble. Al2O3 is not soluble because it does not contain any element that is soluble and is hence the precipitate.

Hope this helped!
7 0
3 years ago
Other questions:
  • Given the equation representing a reaction at equilibrium: if an acid is defined as an h+ donor, what is the acid in the forward
    5·2 answers
  • Classify each of the molecules given below by molecular shape.
    15·1 answer
  • Compare and contrast comets and meteors. What are the impacts each might have on Earth?
    13·1 answer
  • A 25.00 mL flask contains methane (CH4) gas at 22.5°C. The pressure in the flask is 225.2 mmHg. How many moles of methane are in
    15·1 answer
  • 1.Adipic acid contains 49.32 % Carbon, 43.84 % Oxygen, and 6.85 % hydrogen by mass. What is the Empirical Formula of Adipic acid
    9·1 answer
  • What observations can you make about the valence electrons in the following columns of the periodic table?
    12·1 answer
  • Oxidation of a dithiol such as 2,5-hexanedithiol forms a six-membered ring containing a disulfide group as part of the ring. Dra
    11·1 answer
  • If a scientist did an experiment to see how adding sugar to plant water would affect the plant’s growth, what would be the depen
    15·1 answer
  • (b) that is brittle,​
    8·1 answer
  • How much pressure should an airbag have?
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!