Exam (elaborations)
CHEM 464 - Chapter 2 Practice Questions answers latest update
- Course
- CHEM 464
- Institution
- California State University - Northridge
CHEM 464 - Chapter 2 Practice Questions answers latest update
[Show more]
Content preview
CHEM 464 - Chapter 2 Practice QuestionsIce has a lower ________ than liquid water. - density
The polarity of the O-H bond is caused by the ________ of oxygen relative to that
of hydrogen. - higher electronegativity
Octane molecules dispersed in water tend to aggregate because that allows water
molecules to be more ________. - disordered
A difference between a strong acid and a weak acid is that the weak acid
is________ in water. - only partially ionized
A solution containing a weak acid (pKa = 7.5) and its conjugate base at pH of8.5
has a good capacity to buffer the addition of ________. - acid
Rank the following interactions in order of increasing strength (start with the
weakestinteraction).
A) London dispersion forces, hydrogen bonds, ionic interactions, covalent bonds
B) covalent bonds, London dispersion forces, ionic interactions, hydrogen bonds
C) hydrogen bonds, London dispersion forces, ionic interactions, covalent bonds
D) ionic interactions, hydrogen bonds, London dispersion forces, covalent bonds -
A) London dispersion forces, hydrogen bonds, ionic interactions, covalent bonds
, Hydrogen bonds within liquid water:'
A) are attractions between protons and hydroxide ions.
B) are attractions between protons and oxygen nuclei.
C) are attractions between protons and oxygen lone pair electrons.
D) are ion-induced dipole attractions. - C) are attractions between protons and
oxygen lone pair electrons.
Methanol (CH3OH) can act both as a H-bond donor and as a H-bond acceptor.
What is the maximal number of H-bonds a single molecule of methanol can form
with surrounding water molecules?
A) 1
B) 2
C) 3
D) 4 - C) 3
Which of the following statements about water is NOT true?
A) In the liquid state it is only 15% less hydrogen bonded than in the solid state
at0°C.
B) It has a high dielectric constant.
C) It dissolves salts and polar substances.
D) It can form two hydrogen bonds per water molecule. - D) It can form two
hydrogen bonds per water molecule.
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 Schoolflix. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $13.99. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
53340 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now