100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
logo-home
MCAT General Chemistry (Princeton Review) Questions and Answers | Latest Update | 2024/2025 | Already Passed £8.49   Add to cart

Exam (elaborations)

MCAT General Chemistry (Princeton Review) Questions and Answers | Latest Update | 2024/2025 | Already Passed

 10 views  0 purchase
  • Module
  • MCAT General Chemistry
  • Institution
  • MCAT General Chemistry

MCAT General Chemistry (Princeton Review) Questions and Answers | Latest Update | 2024/2025 | Already Passed What is the role of a Lewis acid and a Lewis base in a chemical reaction? A Lewis acid is an electron pair acceptor, while a Lewis base is an electron pair donor. They interact to ...

[Show more]

Preview 4 out of 41  pages

  • August 21, 2024
  • 41
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • MCAT General Chemistry
  • MCAT General Chemistry
avatar-seller
MCAT General Chemistry (Princeton
Review) Questions and Answers | Latest
Update | 2024/2025 | Already Passed
What is the role of a Lewis acid and a Lewis base in a chemical reaction?


✔✔ A Lewis acid is an electron pair acceptor, while a Lewis base is an electron pair donor. They

interact to form a coordinate covalent bond where the base donates an electron pair to the acid.




How does the concept of bond enthalpy relate to the strength of a chemical bond?


✔✔ Bond enthalpy (or bond dissociation energy) measures the energy required to break a bond

in a molecule. Higher bond enthalpy indicates a stronger bond.




What is the principle of Raoult's Law, and how is it applied to determine the vapor pressure of a

solution?


✔✔ Raoult's Law states that the vapor pressure of a solvent in a solution is proportional to its

mole fraction. It can be used to calculate the lowering of vapor pressure when a non-volatile

solute is added to the solvent.




How does the presence of a common ion affect the solubility of a salt in a solution?




1

,✔✔ The presence of a common ion reduces the solubility of a salt due to the common ion effect,

which shifts the equilibrium position of the dissolution reaction according to Le Chatelier’s

principle.




How does the concept of collision theory explain the effect of concentration on the rate of a

chemical reaction?


✔✔ Collision theory explains that increasing the concentration of reactants increases the

frequency of collisions between particles, which can lead to a higher reaction rate if the

collisions have sufficient energy to overcome the activation barrier.




What is the significance of the standard reduction potential in electrochemical cells?


✔✔ The standard reduction potential measures the tendency of a species to gain electrons and be

reduced. It is used to predict the direction of electron flow and the cell potential in

electrochemical cells.




How does entropy change with the formation of a solution, and what does this imply about the

spontaneity of the dissolution process?


✔✔ Entropy generally increases when a solute dissolves in a solvent, as the system becomes

more disordered. An increase in entropy often drives the spontaneity of the dissolution process,

according to the Gibbs free energy equation.


2

,What is the principle of energy conservation in chemical reactions, and how is it applied to

exothermic and endothermic reactions?


✔✔ The principle of energy conservation states that energy cannot be created or destroyed, only

transferred. In exothermic reactions, energy is released to the surroundings, while in endothermic

reactions, energy is absorbed from the surroundings.




How can the concept of equilibrium constant be used to predict the direction of a reaction?


✔✔ The equilibrium constant indicates the ratio of concentrations of products to reactants at

equilibrium. A large equilibrium constant suggests that products are favored, while a small

constant suggests that reactants are favored, helping to predict the direction of the reaction.




Atomic Number (Z) ✔✔# of Protons




Mass Number (A) ✔✔# of protons + # of neutrons




Charge (c) ✔✔Number of protons - # of electrons




Does energy increase or decrease with distance from the nucleus? ✔✔Increase

3

, Does distance increase or decrease with distance from the nucleus? ✔✔Decrease




Quantum number n ✔✔Describes the radial distance of an electron's orbit from the nucleus




Absorption (Absorbing a photon) ✔✔-Positive change in energy


-Endothermic

-Jump to a higher energy level




Emission (Emitting a photon) ✔✔-Negative change in energy


-Exothermic

-Drop to a lower energy level




Energy of Photon Equation ✔✔Ephoton = Ef - Ei




Energy of Photon in Relation to Wavelength and Frequency Equation ✔✔E = hf = hc/λ


-h is a constant

-c is the speed of light

4

The benefits of buying summaries with Stuvia:

Guaranteed quality through customer reviews

Guaranteed quality through customer reviews

Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.

Quick and easy check-out

Quick and easy check-out

You can quickly pay through credit card for the summaries. There is no membership needed.

Focus on what matters

Focus on what matters

Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!

Frequently asked questions

What do I get when I buy this document?

You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.

Satisfaction guarantee: how does it work?

Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.

Who am I buying these notes from?

Stuvia is a marketplace, so you are not buying this document from us, but from seller SterlingScores. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for £8.49. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

79271 documents were sold in the last 30 days

Founded in 2010, the go-to place to buy revision notes and other study material for 14 years now

Start selling
£8.49
  • (0)
  Add to cart