We can use the ideal gas law equation to find the volume of N₂ gas at STP
PV = nRT
where
P - standard pressure - 101 325 Pa
V - volume
n - number of moles - 21.0 g / 28 g/mol = 0.750 mol
R - universal gas constant - 8.314 Jmol⁻¹K⁻¹
T - standard temperature - 273 K
substituting the values in the equation
101 325 Pa x V = 0.750 mol x 8.314 Jmol⁻¹K⁻¹ x 273 K
V = 16.8 L
volume of N₂ at STP is 16.8 L
Trail mix
Explanation:
Trail mix is a heterogeneous mixture due to its composition.
It is made up of nuts, raisins, seeds, berries, chocolate,
- Heterogeneous mixtures are mixtures whose constituents are existing in at least two different phases.
- There are different types of heterogeneous mixtures.
- Examples are muddy-water, aerated drinks, solid particles suspended in air.
learn more:
Heterogeneous mixtures brainly.com/question/1446244
#learnwithBrainly
Answer:
6060 moles
Explanation:
3.65x10^27 atoms *( 1 mol/6.02*10^23 atoms)= 6063 moles ≈ 6060 moles
How does one determine the identity and structure of an unknown compound? This is not a trivial task. Modern x-ray and spectroscopic techniques have made the job much easier, but for some very complex molecules, identification and structure determination remains a challenge. In addition to spectroscopic information and information obtained from other instrumental methods, chemical reactions can provide useful structural information, and physical properties can contribute significantly to confirming the identity of a compound.
In this experiment, you will be asked to identify an unknown liquid, which will be either an alcohol, aldehyde, or ketone. Identification will be accomplished by carrying out chemical tests, called classification tests, preparing a solid derivative of the unknown and determining its melting point (MP), making careful observations, and analyzing the NMR spectrum of the unknown.
OO