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
borishaifa [10]
4 years ago
8

Calculate 139 centimeters cubed argon at STP

Chemistry
1 answer:
rewona [7]4 years ago
3 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
Orygon
grigory [225]

if 105 grams burns completely

therefore

105 ×22.4/48=49

8 0
3 years ago
2. When two forces act on an object in opposite directions, you calculate the net
exis [7]

When two forces act on an object in opposite directions, the net  force can be calculated by subtracting the two forces.

<u>Explanation:</u>

  • The net/final force by subtracting the two given opposite forces as asked in the above question.

For example: If you keep a bottle on the table, the downward force subtracted from the upward force will be equal to the net force.

  • If the net force equals zero then the objects will be balanced, otherwise unbalanced.

For example: In the tug of war when two forces are of different units the force with the greater strength will have an advantage, like if the team on the right is stronger than that of left than the rope will move towards the right.

5 0
3 years ago
How many significant figures are there in the measurement 0.003kg
salantis [7]

Answer:

-4

Explanation:

In 0.0034 the zeros are preceding numberd and after the decimal point.

6 0
4 years ago
How are weathering and erosion different?
xxTIMURxx [149]
Mechanical weathering<span> breaks rocks into small pieces and fragments. Chemical </span>weathering<span> changes mineral structures inside of rocks. ... </span>Erosion<span>, which is also called mass wasting, happens when the </span>weathered<span> pieces of rock roll down-slope, along with another agent, such as in the case of a mud slide or moving ice floe.</span>
8 0
3 years ago
What happens to PH of basic solution as you add water
Arlecino [84]

Answer:

to fall towards 7, making the solution less alkaline as more water is added.

8 0
2 years ago
Read 2 more answers
Other questions:
  • 10g of sugar is dissolved by water to make 200g of solution of sugar. What is the percent by mass of the solution?​
    13·1 answer
  • Which of the following is always true when a substance undergoes a physical change ?
    5·2 answers
  • Read the given expression. Effective nuclear charge = atomic number − X Which of the following explains the identity of X and it
    8·1 answer
  • The temperature of an object is directly related to A. the volume of the object. B. the motion of its particles. C. the potentia
    8·2 answers
  • Solve for a. a(b + c)=d
    15·2 answers
  • CORO<br> Name three ways that scientists can ensure their results<br> are reliable
    10·1 answer
  • When sodium chloride is dissolved in water, the resulting solution is classified as a
    6·1 answer
  • 20.
    7·2 answers
  • Which of the following two sources of alternative energy are known as intermittent sources of energy? You may need to select mor
    13·1 answer
  • ___C2H4 + ___O2 ___CO2 +___H2O
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!