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
FromTheMoon [43]
3 years ago
6

Calculate the mass of 139 cm^3 Argon at STP

Chemistry
1 answer:
dexar [7]3 years ago
7 0
Volume in liters:

139 cm³ / 1000 = 0.139 L   

molar mass Argon = 39.95 g/mol

1 mole -------- 22.4 L ( at STP )
? mole ------- 0.139 L

moles of argon :

0.139 * 1 / 22.4 = 0.00620 moles 

Mass of argon :

0.00620 * 39.95 = 0.24769 g

hope this helps!


You might be interested in
Saponification is a chemical reaction _____. A. due to the presence of a strong organic acid. B. that results in an alcohol and
dezoksy [38]

Answer:

that results in an alcohol and a carboxylic acid.

Explanation:

Saponification is a chemical reaction process of alkaline hydrolysis of esters(R'COOR group) by which soap is obtained.

For Example, when a base such as sodium hydroxide [NaOH]  is used to hydrolyze an ester, the products are a carboxylate salt and an alcohol. Because soaps are prepared by the alkaline hydrolysis of fats and oils.

In a saponification reaction, alkaline hydrolysis of fats and oils with sodium hydroxide  yields propane-1,2,3-triol and the corresponding sodium salts of the component fatty acids.

i.e  Fat or oil + caustic alkali ⇒ Soap + propane-1,2,3-triol

As a specific example, ethyl acetate and NaOH react to form sodium acetate and ethanol:

The reaction goes to completion in the image below:

8 0
3 years ago
Disadvantages of Mendeleev's periodic table​
mestny [16]

Answer:

Various limitations of Mendeleev's periodic table are:-

Position of hydrogen - he couldn't assign a correct position to hydrogen as it showed properties of both alkali and halogens .

Position of isotopes - he considered that the properties of elements are a function of their atomic masses. Hence isotopes of a same element couldn't be placed.

In the d-block , elements with lower atomic number were placed before higher atomic number.

Explanation:

3 0
3 years ago
Read the information in the table below:
LiRa [457]

Exothermic Reactions

4 0
4 years ago
Read 2 more answers
What is the difference between atom and compound? explain.
shutvik [7]
An atom is the simplest particle that exists and retains the property of the element. A compound is made up of two or more elements chemically combined.
6 0
3 years ago
What is the electron configuration for a calcium atom? 1s2, 2s2, 2p6, 3s2, 3p6, 4s2 1s2, 2s2, 2p6, 3s2, 3p6, 4s1 2s2, 2s2, 2p6,
Zarrin [17]
1s2,2s2, 2p6, 3s2,3p6,4s2
8 0
3 years ago
Read 2 more answers
Other questions:
  • How did satellite tracking allow biologists to study the green sea turtle?
    14·2 answers
  • A fire turns dead trees/decaying trees into ash which nutrients return to the soil.
    11·1 answer
  • Why are numbers not used to designate the position of the functional group in propanone and butanedione?
    6·1 answer
  • Vivian went on a bicycle trip through Germany with her family. One afternoon, she rode her bicycle along a long flat road at a c
    12·2 answers
  • Write and balance the following equation:
    11·1 answer
  • Name the element which has twice the number of electrons in its second shell as in the first shell write it's electronic configu
    13·1 answer
  • Yellow bone marrow is located within the medullary cavity and is rich in fats.
    7·1 answer
  • Why does understanding the Rock Cycle help us to plan living on the ocean? answer before it's too late!
    15·1 answer
  • Help pls
    11·1 answer
  • True or False Photosynthesis and Cell Respiration are opposite reactions. Photosynthesis provides the molecules needed for cell
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!