Exam (elaborations)
AP CHEMISTRY UNIT 4 ( Latest 2024 / 2025 ) Actual Questions and Answers 100% Correct
- Course
- Institution
AP CHEMISTRY UNIT 4 ( Latest 2024 / 2025 ) Actual Questions and Answers 100% Correct
[Show more]
Content preview
AP CHEMISTRY UNIT 41. Which of the following indicates very strong intermolecular forces of attraction in a
liquid?: A very low vapor pressure
2. The compounds Br2 and ICl have almost identical molecular weights, yet ICl boils at 97
C and Br2 boils at 59 C. The best explanation for the difference is: ICl has a measurable dipole
moment (is polar) and Br2 does not (is non-polar)
3. In general, ions which have will form the
strongest interactions with water molecules in aqueous solution.: large chargeand small size
4. Which compound is most likely to form intermolecular hydrogen bonds?CH4, NaH,
C2H5SH, C2H5OH: C2H5OH
5. White powder A melts in a bunsen burner flame, dissolves in water, doesnot conduct
electricity as a solid, but conducts when dissolved. White powderB also melts in a bunsen
burner flame and dissolves in water, but does not conduct electricity either as a solid or in
solution. The solid types representedby samples A and B are probably:: A = ionic, B =
molecular
6. Paper chromatography was used to separate the dyes within marker ink. The dye that
traveled the farthest up the paper (had the greatest Rf value) musthave had:: The highest affinity
for the mobile phase only
7. An unknown substance does no dissolve in water, does not conduct electricity or melt in
a bunsen burner flame. It is extremely hard and resists efforts to be ground into a powder
using a ceramic mortar and pestle. One could surmise that the substances is probably a
solid.: Net-work-covalent
8. Spring steel is harder and stronger than pure iron metal by itself. The best explanation for
this would be:: The extra bonds provided by the interstitialcomponent causes the metal lattice
to become harder, stronger, and less ductile.
9. Which would be the best choice to use for n-type doping of a siliconsemiconductor?: P -
Phosphorus
10. Of the following gases, which one will have the greatest rate of effusion ata given
temperature? NH3, CH4, Ar, HBr, HCl: CH4
11. Arrange the following gases in order of increasing average molecular speedat 25 C. Cl2,
O2, F2, N2: Cl2, F2, O2, N2
12. Liquid nitrogen has a boiling point of -196 C, this corresponds to... Kelvin: 77K
13. For an ideal gas, which pair of variables are inversely proportional to eachother?: P, V
14. A given mass of gas in a rigid container is heated from 100 C to 300 C. Whichof the
following best describes what will happen to the pressure of the gas? The pressure will...:
increase by a factor less than three.
15. Substance A condenses in the highest portion of the column (the coolesttemperature),
The benefits of buying summaries with Stuvia:
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
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
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 ExamNavigator. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $10.99. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
83637 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now