ACS General Chemistry 2 Final Exam
Study Guide |2024 Release|
C
Where is the hydrophilic (attracted to water) region of the molecule?
(A) Region 1
(B) Region 2
(C) Region 3
(D) The three regions are equally hydrophilic
C
Which molecule is most soluble in water?
D
A solution of NaCl in w...
Thank you for your review, I will continue to update my documents.
Seller
Follow
AceTests
Reviews received
Content preview
ACS Gen eral Chem istry 2 Final Exam Study Guide |2024 Release | C Where is the hydrophilic (attracted to water) region of the molecule? (A) Region 1 (B) Region 2 (C) Region 3 (D) The three regions are equally hydrophilic C Which molecule is most soluble in water? D A solution of NaCl in water has a concentration of 20.5% by mass. What is the molal concentration of the solution? Molar Mass NaCl = 58.44 g/mol (A) 0.205 m (B) 0.258 m (C) 3.51 m (D) 4.41 m B What is the mole fraction of water in 200 g of 89% (by mass) ethanol, C2H5OH? Molar Mass C2H3OH = 46 g/mol (A) 0.11 (B) 0.24 (C) 0.32 (D) 0.76 D A mixture of 100 g of K2Cr2O7 and 200 g of water is stirred at 60 degrees C until no more of the salt dissolves. The resulting solution is poured off into a separate beaker, leaving the undissolved solid behind. The solution is now colled to 20 degrees C. What mass of K2Cr2O7 crystallizes from the solution during the cooling? (A) 9 g (B) 18 g (C) 31 g (D) 62 g A Carbonated beverages have a fizz because of gas dissolved in the solution. What increases the concentration of gas in a solution? (A) cooling the solution (B) heating the solution (C) increasing the volume of solution (D) decreasing the volume of solution D When 100 g of an unknown compound was dissolved in 1.00 kg of water, the freezing point was lowered by 6.36 degrees C. What is the identity of this unknown compound? Kf for water = 1.86 degrees C/m (A) CsCl (B) KCl (C) LiF (D) NaCl A Which 0.1 molal aqueous solution will have the lowest freezing point? (A) Al(NO3)3 (B) CaCl2 (C) C2H5OH (D) NaCl B What is the rate law of this reaction? 2H2 (g) + 2NO (g) --> N2 (g) + 2H2O (g) (A) rate = k[H2]^2 [NO] (B) rate = k[H2] [NO]^2 (C) rate = k[H2]^2 [NO]^2 (D) rate = k[N2] [H2O]^2 / [H2]^2 [NO]^2
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 EFT, 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 this summary from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller AceTests. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy this summary for R185,69. You're not tied to anything after your purchase.
