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
Svetradugi [14.3K]
3 years ago
10

14. A 500.0 ml flask contained O2 gas at 25.0°C at a pressure of 4.5 atm. What is the number

Chemistry
1 answer:
Luden [163]3 years ago
7 0

Explanation:

3.Apply the ideal gas law: PV = nRT solving for n. Here you can use the pressure given in atm, but you must choose the 0.0821 atm L/mole K gas constant. Or you can change 4.5 atm to 3420 mm Hg and use the 62.4 mmHg L/mole K gas constant. You must change 500 ml to 0.5 L because both gas constants have units in L, and so the volume must be in liters so it can cancel out. And of course, you must change the temperature to Kelvin.

a. n = (4.5atm)(0.5L)

moliK)(298K) = 0.092 mole (0.0821 atmiL

b. 0.092mol 32g

⎛⎝⎜ ⎞⎠⎟ = 2.9 g

1mol

c. Remember that D = mass

vol so D = 2.9g

0.5L = 5.9 g/L

You might be interested in
Is ironing clothes conduction, convection or radiation
choli [55]

Ironing clothes is Conduction.

<h3>What is Conduction? </h3>

Conduction is one of the means of Heat transfer ,others includes

  • Convection
  • Radiation

Conduction is the transfer of heat energy from one object to another object from particles in a hotter object to particles in a cooler object, For Example: Ironing clothes is conduction.

This is because The heat from the iron which transfers to the clothes is conduction.

Learn more on Conduction here:brainly.com/question/26864500

3 0
2 years ago
A sample of carbon-12 has a mass of 6.00 g. How many atoms of carbon-12 are in the sample?
Serjik [45]
<em>mC: 12g/mol</em>

12g ------- 6,02·10²³ a.
6g ---------  X
X = (6×<span>6,02·10²³)/12
</span><u>X = 3,01·10²³ atoms</u>

---->>> A :)

4 0
3 years ago
Read 2 more answers
A/1 * B/C = D
grigory [225]

Answer : 4.8 florins can you exchange for your 4 guilders.

Solution : Given,

The current exchange rate for every 2.4 florins is 2.0 guilders

As per question,

The exchange rate is 2.0 guilders for every 2.4 florins

The exchange rate is 1 guilders for every \frac{2.4}{2.0} florins

The exchange rate is 4 guilders for every \frac{2.4}{2.0}\times 4=4.8 florins

Therefore, the 4.8 florins can you exchange for your 4 guilders.


3 0
3 years ago
Rank these acids according to their expected pKa values.ClCH2COOHClCH2CH2COOHCH3CH2COOHCl2CHCOOHIn order of highest pka to lowes
Ilia_Sergeevich [38]

Answer:

CH₃CH₂CH₂COOH > CH₃CH₂COOH > ClCH₂CH₂COOH  > ClCH₂COOH

Explanation:

Electron-withdrawing groups (EWGs) increase acidity by inductive removal of electrons from the carboxyl group.

Electron-donating groups (EDGs) decrease acidity by inductive donation of electrons to the carboxyl group.

  • The closer the substituent is to the carboxyl group, the greater is its effect.
  • The more substituents, the greater the effect.  
  • The effect tails off rapidly and is almost zero after about three C-C bonds.

CH₃CH₂-CH₂COOH —  EDG —                         weakest —  pKₐ = 4.82

      CH₃-CH₂COOH — reference —                                     pKₐ = 4.75

  ClCH₂-CH₂COOH — EWG on β-carbon— stronger —     pKₐ = 4.00

           ClCH₂COOH — EWG on α-carbon — strongest —  pKₐ = 2.87

6 0
3 years ago
Read 2 more answers
Is the narrator male or female in the story leaving?​
AlladinOne [14]
The narrator is a female

Hope this helps
8 0
3 years ago
Other questions:
  • Is the reaction of sodium bicarbonate with hydrochloric acid endothermic or exothermic?
    8·1 answer
  • 1. Isotopes of are atoms of the same element that vary in
    6·1 answer
  • 11. Many metals are described as ductile, which means they can be
    11·1 answer
  • Crossover formula of potassium oxide.
    13·1 answer
  • Sound waves generated in a classroom must _______ through an open doorway in order to propagate into the hallway.
    12·2 answers
  • What is the percentage composition of cucl
    14·2 answers
  • Determine the number of significant figures for each. a) 65.74 b) 60.009 c) 66_ d) 65.750
    5·1 answer
  • When metals combine with non metals , the metallic atom tend to
    6·1 answer
  • A chemist dissolves 581.1mg of pure perchloric acid in enough water to make up 150 ml of solution. Calculate the pH of the solut
    5·1 answer
  • Complete PDF file of inorganic chemistry​
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!