Answer:
in crystalline solids
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There are 1.22 grams of He in the mixture. The mixture contains 0.304 moles of He, 0.250 moles of N2 and 0.250 moles of O2. Since the mixture of gases are at standard temperature and pressure, the total moles of the mixture equivalent to 18.0 L is 0.804 moles.
Further Explanation:
At standard temperature and pressure of 0°C and 1.00 atm, the molar volume of gas is 22.4 L.
From this, the total moles of the mixture can be derived using the solution below:
Therefore, the total moles of gases in an 18.0 L mixture at STP is:
By algebra, the moles of He may be solved using the given moles of the other two gases: 0.250 mol N2 and 0.250 mol O2.
0.304 moles of He is equal to 1.22 grams of He.
Learn More:
- Learn more about Boyle's Law brainly.com/question/12968820
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Keywords: molar volume, STP, stoichiometry
A reaction is most likely to occur when the colliding particles have proper orientation and energy.
Reactions occur when two reactant molecules effectively collide, each having minimum energy and correct orientation. According to the collision theory of reactivity, reactions occur when reactant molecules "effectively collide. For an effective collision to occur, the reactant molecules must be oriented in space correctly to facilitate the breaking and forming of bonds and the rearrangement of atoms that result in the formation of product molecules.
The Kevlar jacket is only similar to the spiderweb in the arrangement of atoms in molecules of both substances.
<h3>Similarity between spiderweb and a Kevlar jacket</h3>
A spider web refers to the tiny web-like structures that is seen around places where spiders breed. On the other hand the Kevlar jacket is known for its high tensile strength.
The Kevlar jacket is only similar to the spiderweb in the arrangement of atoms in molecules of both substances.
Learn more about molecule: brainly.com/question/19922822
1 mole of any substance is: 6.022*10²³ atoms or molecules.
9 moles of H₂S=9(6.022*10²³ molecules)=5.4198*10²⁴ molecules.
answer:there are 5.4198*10²⁴ molecules in 9.00 moles of H₂S.