A sample of gas consists of 4.0 moles, and exists at stp. What is the volume of the gas?
2 answers:
Answer:
Explanation:
At STP (standard temperature and pressure), all gases have a volume of 22.4 liters per mole.
Multiply by the given number of moles, 4.0
The moles will cancel out. The 1 in the denominator can be ignored, so this becomes a simple multiplication problem.
4.0 moles of a gas at STP have a volume of 89.6 liters.
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There are 1.93 x 10²⁴ particles
<h3>Further explanation</h3>Given
3.2 moles of Neon gas
Required
Number of particles
Solution
The mole is the number of particles(molecules, atoms, ions) contained in a substance
<em>1 mol = 6.02.10²³ particles </em>
Can be formulated
N=n x No
N = number of particles
n = mol
No = Avogadro's = 6.02.10²³
So the number of particles for 3.2 moles :
N = 3.2 x 6.02.10²³
N = 1.93 x 10²⁴
or
we can describe it using Avogadro's number conversion factor
Answer:
150
Explanation:
- C₄H₂OH + 6O2 → 4CO2 + 5H₂O
We can <u>find the equivalent number of O₂ molecules for 100 molecules of CO₂</u> using a <em>conversion factor containing the stoichiometric coefficients of the balanced reaction</em>, as follows:
- 100 molecules CO₂ *
= 150 molecules O₂
150 molecules of O₂ would produce 100 molecules of CO₂.