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
Artemon [7]
2 years ago
10

A 30.0g sample of O2 at standard temperature and pressure (STP) would occupy what volume in liters

Chemistry
1 answer:
Murrr4er [49]2 years ago
6 0

Answer:

Explanation:

A 30.0g sample of O2 at standard temperature and pressure (STP) would occupy what volume in liters

PV =nRT

at STP  P= 1atm. T= 273 K

n is the number of moles.  O2 has a molar mass of 32.

30 gm of O2 is 30/32= 0.94 =n

PV = nRT

at STP: P= 1 atm, T=273 K, R is always 0.082 for P in atm and T in K

SO

1 X V = 0.94 X 0.082 X 273

using high school freshman algebra,

V= 0.94 X 0.082 X 273 = 21L

using high school algebra I,

V=

You might be interested in
Write a balanced chemical equation, including physical state symbols, for the decomposition of solid calcium carbonate (CaCO_3)
nadya68 [22]

Answer:

CaCO₃(s) → CaO(s) + CO₂(g)

Explanation:

The decomposition reaction always make two compounds from one.

The products always have simpler chemical structure, originated from a determined compound. This can happens  spontaneously or by a third party.

A notable example of decomposition is hydrolysis. As for example the case of water, which decomposes and generates oxygen and hydrogen gas

2H₂O (l) → 2 H₂ (g) + O₂ (g)

In this case, the calium carbonate decomposes into CaO and CO₂

These two, are the products of the decomposition.

Of course, the unique reactant is the Calcium Carbonate

The balanced equation is:

CaCO₃(s) → CaO(s) + CO₂(g)

6 0
3 years ago
Read 2 more answers
How to separate a solid for a solution
Blababa [14]

Answer:

Evaporation is the method of separating a solid (solute) from a homogeneous solution.

in this method, the solution is heated until the solvent gets evaporated in the form of vapor and the solute is left behind as residue.

5 0
1 year ago
How does dissolving salt in water allow electric current to flow?
Mumz [18]
Salt is an ionic compound NaCI. So the salt will dissolve and spread apart and the ions in the salt will move freely, letting electricity to flow freely....!

Hope i helped! If you need anything else ask me!! :)
4 0
3 years ago
How many moles of NO2 form when<br> 63.25 g N2O5 decompose?<br> 2N2O5→ 4NO2 + 0₂
GREYUIT [131]

Answer:

1.1713 moles

Explanation:

RFM of N2O5= (14*2)+(16*4)=108

Moles of N2O5= Mass/RFM= 63.25/108= 0.5856 moles

Mole ratio of N2O5:NO2 = 2:4

Therefore moles of NO2= 4/2*0.5856= 1.1713 moles

7 0
2 years ago
**PLATO QUESTION, PLEASE ANSWER CORRECTLY**
Ivenika [448]
The corect answers will be:
1) A
2) B
3) D

Hope this helped :)
7 0
3 years ago
Other questions:
  • A sample of neon occupies a volume of 375 ml at stp. What will be the volume of neon If the pressure is reduced to 90.0 KPA?
    12·2 answers
  • I have a balanced equation. I can convert moles of one substance to moles of another substance using the _____ ratio as a unit f
    8·1 answer
  • What is the chemical name for HCI
    10·2 answers
  • the constellation Orion appears in the eastern sky in December. Where would you expect it to appear in March, Why?
    5·1 answer
  • When matter and energy change forms within a closed system, A. the total amount of matter changes, but the total amount of energ
    8·2 answers
  • How many moles of N are in 0.223 g of N2O
    8·1 answer
  • Which cell copies its dna
    10·1 answer
  • Value of MA is always lesser thàn 1 why?​
    5·1 answer
  • How do scientists test their ideas
    14·1 answer
  • By examining the diagram, which of the following is NOT needed for photosynthesis:
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!