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
natka813 [3]
2 years ago
13

Jshsbdbfbbbfffbbdvdvsgssggdhdh

Chemistry
1 answer:
11Alexandr11 [23.1K]2 years ago
8 0
Very nice english.......
You might be interested in
You have an unknown quantity of oxygen at a pressure of 2.2 atam, a volume of 21 liters and a temperature of 87 Celsius. How man
laila [671]

<span>Let's assume that the oxygen gas has ideal gas behavior. 
Then we can use ideal gas formula,
      PV = nRT</span>


Where, P is the pressure of the gas (Pa), V is the volume of the gas (m³), n is the number of moles of gas (mol), R is the universal gas constant ( 8.314 J mol⁻¹ K⁻¹) and T is temperature in Kelvin.

<span>
P = 2.2 atm = 222915 Pa
V = 21 L = 21 x 10</span>⁻³ m³

n = ?

R = 8.314 J mol⁻¹ K⁻¹

<span> T = 87 °C = 360 K

By substitution,
</span>222915 Pa x 21 x 10⁻³ m³ = n x 8.314 J mol⁻¹ K⁻<span>¹ x 360 K
                                       n = 1.56</span><span> mol</span>

<span>
Hence, 1.56 moles of the oxygen gas are </span><span>left for you to breath.</span><span>
</span>
6 0
3 years ago
Why is it important for scientists to use a classification
Kobotan [32]
So they can tell what exact species it is. 
7 0
3 years ago
you are investigating an organic compound. you discover the following: it contains no hydrogen atoms. what property do you expec
pashok25 [27]
This can be, for example, halogensubstituted hydrocarbons.
CCl₄, C₂F₆.

Or halides halocarboxylic acids, and other compounds.
      O
      II
Cl₃C-Cl
6 0
3 years ago
Read 2 more answers
25 points! Help please
Sedbober [7]

Answer:

I think its b

Explanation:

but I wouldn't depend on this answer

4 0
3 years ago
Read 2 more answers
Henok is observing the reaction rate of a chemical reaction. He then adds a catalyst to the reaction.
tia_tia [17]
A catalyst will ALWAYS increase the reaction rate so C
4 0
3 years ago
Other questions:
  • If A + B → C + D You start with 50 g of A and 30 g of B and 40 g of C are produced, how many g of D would also be produced?
    12·1 answer
  • If you wanted to design an experiment to show that the solubility of sugar in tea varies according to the temperature, what vari
    12·2 answers
  • Butter has a specific gravity of 0.86. What is the mass of 2.15 L of butter?
    12·1 answer
  • In the 1860's the Central Pacific Railroad company employed the chemist James Howden to make an explosive capable of blasting th
    12·1 answer
  • Mixture formation is a ________change.​
    6·1 answer
  • Which of the following is an
    7·2 answers
  • Describe what happens to the weight of an astronaut as she travels from the surface of
    12·1 answer
  • You are given the balanced chemical equation below. If you start this chemical reaction with 0.53 moles of CH4 and 1.5 moles of
    5·1 answer
  • 15.0 L of an ideal gas at 298 K and 3.36 atm are heated to 383 K with
    6·1 answer
  • In this experiment you’ll be grabbing the relationship between mass and volume you’ll be placing the volume on the X axis and th
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!