PLEASE HELP!! DIMENSIONAL ANALYSIS USING METRIC CONVERSIONS!!!

What does the kinetic theory state about the kinetic energy of gas molecules? A. The kinetic energy of gas molecules is inversel

STatiana [176]

Answer: option B. The kinetic energy of gas molecules is directly proportional to the Kelvin temperature of the gas.

Explanation:

The kinetic theory of gases explains the behavior and properties of gases from a molecular perspective.

Specifically and explicity, the kinetic theory of gases states that gases are constituted by particles (molecules) and that the average kinetic energy of the particles is proportional to the absolute temperature (Kelvin scale) of the gas. Furthermore, the temperature of all the (ideal) gases is the same at a given temperature.

Hence, you know that the higher the temperature of the gas, the higher the kinetic energy and the average speed of the molecules.

Other postulates of the kinetic theory of gases are that: i) the volume of the particles is neglectible; ii) the particles do not exhibit intermolecular attraction or repulsion; iii) the particles are in continuous random motion in straight paths, until they collide with other particles or the walls of the vessel, and iv) the collisions are elastic (the energy is conserved).

4 0

3 years ago

How many moles are in a 501mL of a 2.37 M solution of Al2(SO4)3?

MissTica

The number of moles of Al₂(SO₄)₃ is 1.2 mol

<u>Explanation:</u>

Given:

Volume of the solution, V = 501 mL

V = 0.501L

Molarity of the solution, M = 2.37M

Moles, n = ?

We know:

Molarity = $\frac{moles of solute}{volumeof solution}$

On substituting the values we get:

$2.37 = \frac{n}{0.501} \\\\n = 1.2 mol$

Therefore, the number of moles of Al₂(SO₄)₃ is 1.2 mol

8 0

3 years ago

Aspirin synthesis involves the addition of an acetyl group to salicylic acid in a condensation reaction with an alcohol. The ace

BARSIC [14]

Answer:

The correct appropriate will be Option 1 (Acid anhydrides are less stable than esters so the equilibrium favors the ester product.)

Explanation:

Acid anhydride, instead of just a carboxyl group, is typically favored for esterification. The predominant theory would be that Anhydride acid is somewhat more volatile than acid. This is favored equilibrium changes more toward the right of the whole ester structure.
Extremely responsive than carboxylic acid become acid anhydride as well as acyl chloride. Thus, for esterification, individuals were most favored.

The other options offered are not relevant to something like the scenario presented. So, the solution here is just the right one.

3 0

3 years ago

Which of the following are ionic, and which are molecular? (a) Sc2O3 ionic molecular (b) NaI ionic molecular (c) SCl2 ionic mole

tangare [24]

Answer :

Ionic compound : (a), (b), (d), (e), (f), (g) and (h)

Molecular compound : (c)

Explanation :

Ionic compound : It is defined as the compound which is formed when electron gets transferred from one atom to another atom.

Ionic compound are usually formed when a metal reacts with a non-metal.

Covalent compound : It is defined as the compound which is formed by the sharing of electrons between the atoms forming a compound.

The covalent compound are usually formed when two non-metals react.

All the polyatomic ions always form an ionic compound.

Polyatomic ions : It is a charged species that composed of two or more atoms and these charged species are bonded by the covalent bond.

As we know that the molecular compounds are the covalent compounds.

(a) Sc₂O₃

This is an ionic compound because it is made up of scandium metal and oxygen non-metal elements.

(b) NaI

This is an ionic compound because it is made up of sodium metal and iodine non-metal elements.

(c) SCl₂

This is an molecular compound because it is made up of sulfur and chlorine non-metal elements.

(d) Ca(NO₃)₂

This is an ionic compound because it is made up of calcium metal and polyatomic ion $(NO_3^-)$ non-metal elements.

(e) FeCl₃

This is an ionic compound because it is made up of iron metal and chlorine non-metal elements.

(f) LaP

This is an ionic compound because it is made up of lanthanum metal and phosphorous non-metal elements.

(g) CoCO₃

This is an ionic compound because it is made up of cobalt metal and polyatomic ion $(CO_3^{2-})$ non-metal elements.

(h) (NH₄)₂SO₄

This is an ionic compound because it is made up of ammonium ion and sulfate ion.

3 0

3 years ago

If the moles and volume of a gas are held constant, dropping the temperature from 40 degrees Celsius to 20 degrees Celsius cause

evablogger [386]

It would cause a drop <span>but I am not sure double check other answers </span>

8 0

3 years ago

Read 2 more answers