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CSN Chemistry Placement Exam Practice Questions, Exams of Analytical Chemistry

College of Southern Nevada (CSN)Analytical Chemistry

Sample questions for the CSN Chemistry Placement Exam, which is used to assess students' preparation for General Chemistry I. The exam covers chemistry and basic mathematical skills and consists of 44 multiple choice questions to be answered in 45 minutes. a Periodic Table and sample questions to show the relative level of difficulty and topics covered. The questions cover topics such as stoichiometry, electron configuration, reaction balancing, and molecular geometry.

Typology: Exams

2021/2022

Uploaded on 05/11/2023

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THE FOLLOWING QUESTIONS ARE PRACTICE QUESTIONS FOR THE CSN CHEMISTRY PLACEMENT EXAM
The chemistry placement test is used to assess your preparation for General Chemistry I, CHEM 121 at CSN. The test is a standardized
test that will examine your knowledge of chemistry and basic mathematical skills. You will be provided scratch paper , a Periodic Table
of the Elements and a nonprogramable scientific calculator. The following sample questions are intended only as a guide to show you
the relative level of difficulty and example topics covered in the Chemistry Placement Exam. The actual exam will have a time limit of 45
minutes to answer 44 multiple choice questions. Click the following link to view a Periodic Table .
MULTIPLECHOICE.Choosethesinglechoicethatbest
answersthequestion.
1) Howmanytotalatomsareintheformula
Al2(CO3)3?
A) 12 B) 14 C) 9 D) 8
2) HowmanyelectronsareinBr-?
A) 4 B) 7 C) 36 D) 34
3) Whatarethecoefficientsforthefollowing
reactionwhenitisproperlybalanced?
Na3PO4+Ba(NO3)2→NaNO3+Ba3(PO4)2
A) 2,3,6,1B)6,1,3,2
C) 2,3,1,6D)2,1,1,3
4) Giventhat4NH3+5O2→4NO+6H2O,
when4.50molofH2Oareformed,theamount
ofNOformedis
A) 3.00mol B) 6.75mol
C) 1.50mol D) 4.50mol
5) Whattypeofareactionoccurswhenasodium
hydroxidesolutionismixedwithanacetic
acidsolution?
A) gasevolution
B) oxidation-reduction
C) acid-
b
aseneutralization
D) precipitation
6) Whichofthefollowingatomshasthesmallest
radius?
A) Ne B) O
C) Li D) B
7) Whatisthemoleculargeometryifyouhavea
doublebond,asinglebondand1lonepair
aroundthecentralatom?
A) trigonalpyramidal
B) linear
C) tetrahedral
D)
b
ent
8) Whatvolumeof12.0MHClisrequiredto
make75.0mLof3.50MHCl?
A) 0.560mL B) 257mL
C) 560.mL D) 21.9mL
9) (2.80x10-3)(1.28x101)
(3.20x10-4)
=__________
A) 1.27×101B) 2.0×102
C) 1.2×106D) 1.12×102
10) Ofthemoleculesbelow,only__________is
polar.
A) CH4B) SbF5
C) CO2D) AsH3
11) Whichoneofthefollowingisametalloid?
A) S B) Ge C) C D) Pb
12) Acertainatomhasachargeof-2andhas16
protonsand16neutronsinthenucleus.
Howmanyelectronsdoesthisatompossess?
A) 34 B) 14 C) 32 D) 18
13) Howmanymolesofpyridine(C5H5N)are
containedin3.13gofpyridine?
A) 0.00404 B) 25.3
C) 0.0396 D) 0.319
14) Solvethefollowingequationforx:
4x–b=2x+c
A) c–b–6B)
c+b
2
C) c+b
6D) c-b
2
1
pf2

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Download CSN Chemistry Placement Exam Practice Questions and more Exams Analytical Chemistry in PDF only on Docsity!

THE FOLLOWING QUESTIONS ARE PRACTICE QUESTIONS FOR THE CSN CHEMISTRY PLACEMENT EXAM

The chemistry placement test is used to assess your preparation for General Chemistry I, CHEM 121 at CSN. The test is a standardized test that will examine your knowledge of chemistry and basic mathematical skills. You will be provided scratch paper , a Periodic Table of the Elements and a nonprogramable scientific calculator. The following sample questions are intended only as a guide to show you the relative level of difficulty and example topics covered in the Chemistry Placement Exam. The actual exam will have a time limit of 45 minutes to answer 44 multiple choice questions. Click the following link to view a Periodic Table.

MULTIPLE CHOICE. Choose the single choice that best answers the question.

  1. How many total atoms are in the formula Al (^) 2(CO (^) 3)3? A) 12 B) 14 C) 9 D) 8

  2. How many electrons are in Br-? A) 4 B) 7 C) 36 D) 34

  3. What are the coefficients for the following reaction when it is properly balanced?

Na3PO 4 + Ba(NO3) 2 → NaNO 3 + Ba (^) 3(PO4) 2

A) 2, 3, 6, 1 B) 6, 1, 3, 2

C) 2, 3, 1, 6 D) 2, 1, 1, 3

  1. Given that 4 NH 3 + 5 O 2 → 4 NO + 6 H (^) 2O, when 4.50 mol of H (^) 2O are formed, the amount of NO formed is A) 3.00 mol B) 6.75 mol C) 1.50 mol D) 4.50 mol

  2. What type of a reaction occurs when a sodium hydroxide solution is mixed with an acetic acid solution? A) gas evolution B) oxidation-reduction C) acid-base neutralization D) precipitation

  3. Which of the following atoms has the smallest radius? A) Ne B) O C) Li D) B

  4. What is the molecular geometry if you have a double bond, a single bond and 1 lone pair around the central atom? A) trigonal pyramidal B) linear C) tetrahedral D) bent

  5. What volume of 12.0 M HCl is required to make 75.0 mL of 3.50 M HCl? A) 0.560 mL B) 257 mL C) 560. mL D) 21.9 mL

  6. (2.80x

    1. (1.28 x 101) (3.20 x 10 - 4)

= __________

A) 1.27 × 101 B) 2.0 × 102

C) 1.2 × 106 D) 1.12 × 102

  1. Of the molecules below, only __________ is polar. A) CH4 B) SbF C) CO2 D) AsH

  2. Which one of the following is a metalloid? A) S B) Ge C) C D) Pb

  3. A certain atom has a charge of - 2 and has 16 protons and 16 neutrons in the nucleus. How many electrons does this atom possess?

A) 34 B) 14 C) 32 D) 18

  1. How many moles of pyridine (C5H5N) are contained in 3.13 g of pyridine? A) 0.00404 B) 25. C) 0.0396 D) 0.

  2. Solve the following equation for x: 4x – b = 2x + c A) c – b – 6 B) c^ +^ b 2

C) c^ +^ b 6

D) c^ -^ b 2

Answer Key

Testname: CHEMPLACEMENTPRACTICE

1) B

2) C

3) A

4) A

5) C

6) A

7) D

8) D

9) D

10) D

11) B

12) D

13) C

14) B