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
Juli2301 [7.4K]
2 years ago
10

What would be the mass of a 33.5dm3 sample of O2 at STP?

Chemistry
1 answer:
liraira [26]2 years ago
7 0

Answer:

• One mole of oxygen is equivalent to 16 grams.

→ But at STP, 22.4 dm³ are occupied by 1 mole.

{ \tt{22.4 \:  {dm}^{3}   \: \dashrightarrow \: 16 \: grams}} \\  { \tt{33.5 \:  {dm}^{3}  \:  \dashrightarrow \: ( \frac{33.5 \times 16}{22.4} ) \: grams}} \\  \\  \dashrightarrow \: { \boxed{ \tt{23.94 \: g \approx \: 24 \: grams}}}

You might be interested in
How many moles of water will be produced from the combustion of 0.27 moles of CH3OH?
Valentin [98]

Answer:

0.54 mole of H2O.

Explanation:

We'll begin by writing the balanced equation for the reaction. This is illustrated below:

2CH3OH + 3O2 —> 2CO2 + 4H2O

From the balanced equation above,

2 moles of CH3OH reacted to produce 4 moles of water.

Finally, we shall determine the number of mole of water (H2O) produced by the reaction of 0.27 moles of CH3OH. This can be obtained as follow:

From the balanced equation above,

2 moles of CH3OH reacted to produce 4 moles of water.

Therefore, 0.27 moles of CH3OH will react to produce = (0.27 × 4)/2 = 0.54 mole of H2O.

Thus, 0.54 mole of H2O is produced from the reaction.

5 0
2 years ago
Can you help me with this ?
kherson [118]
What is earth science?: The study of our planet Earth
What are the main fields of earth science: Geology, Paleontology, Meteorology, and Oceanography.
What are the main spheres of earth: The Atmosphere, Hydrosphere, and Lithosphere.

the support web thing, i'm confused with. But I hope this helped.
8 0
3 years ago
When you heat water, more sugar can be dissolved in it.
mr Goodwill [35]
I think it can be dissolved but if u keep adding more sugar it will stop dissolving
5 0
3 years ago
7. what is the density of an object having a mass of 8.0 g and a volume of 25 cm^3? a) 0.32g/cm^3 b) 2.0 g/cm^3 c) 3.1 g/cm^3 d)
natulia [17]
D = m / V

D = 8.0 g  / 25 cm³

D = 0.32 g/cm³

Answer A
6 0
3 years ago
Which is a complex molecule?<br><br> a. H2<br><br> b. Ne<br><br> c. Co<br><br> d. H20
eimsori [14]

Explanation:

d.

h{}^{2} o

3 0
3 years ago
Other questions:
  • Which formula represents an ionic compound?<br> a. NaCl<br> b. N2O<br> c. HCl<br> d.H2O
    15·1 answer
  • what can happen when two plates boarding each other suddenly move and release energy? A) Earth's crusts shakes. B) Lava erupts.
    7·2 answers
  • Using the data: C2H4(g), = +51.9 kJ mol-1, S° = 219.8 J mol-1 K-1 CO2(g), = ‑394 kJ mol-1, S° = 213.6 J mol-1 K-1 H2O(l), = ‑286
    12·1 answer
  • Methane<br><br> state at 25 degrees Celsius​
    9·1 answer
  • 11. Write down the molecular formula of following compounds by
    15·1 answer
  • Write 6.3 x 10^2 in standard form.<br> O 0.063<br> O 630<br> O 63<br> O 63
    15·1 answer
  • A student massed an unknown sample and found it to be 23.5g. The volume of the sample is 2.00mL. Calculate the density
    9·2 answers
  • How is the rock cycle related to chemistry??
    5·1 answer
  • The weights of all elements are always compared to oxygen.<br> True <br> False
    9·2 answers
  • 36.0 g of Be contains how many moles? 1 mole = Molar mass (grams)
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!