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Chemistry Multiple Questions Assignment

Posted on September 16, 2020September 16, 2020

Chemistry Multiple Questions Assignment

Chem 101: Introduction to General Chemistry Quiz #10 100 points possible Due before noon on
Wednesday, Nov. 12, 2014 Submit answers on moodle. Each question is worth five points. 1. How
many g of salt are there in 32 mL of a 76%w/v salt solution? A. 24 g B. 2.4 g C. 42 g D. 76 g 2.
You are about to perform a reaction that requires 1.25 mol of CaCl2 to go to completion. The
solution available in the stock room has a concentration of 33 % w/v. How many mL of this
solution will you need to use? A. 46 mL B. 420 mL C. 0.034 mL D. 140 mL 3. The strongest
intermolecular forces present in a sample of CH2Cl2 are A. London dispersion forces B. hydrogen
bonding C. dipole-dipole forces D. ionic bonding 4. A solution is prepared by dissolving 3.50
grams of NH4Cl in enough water to make 250 mL of solution. What is the concentration of this
solution in units of molarity? A. 0.0327 M B. 0.0654 M C. 0.131 M D. 0.262 M 5. How many
moles of solute are contained in 500.0 mL of 0.50M KCl? A. 0.25 mol B. 0.50 mol C. 1.0 mol D.
2.0 mol 6. How many g of NaOH are required to prepare 50.0 mL of a 7.60 % w/v solution of
NaOH in water? A. 0.0950 g NaOH B. 6.58 g NaOH C. 15.2 g NaOH D. 3.80 g NaOH 7.If you
have a concentrated stock solution of HCl with a molarity of 6.0 M, how many mL of this solution
are required to prepare a 100. mL of a 1.5 M solution of HCl? A. 9 mL B. 25 mL C. 0.040 mL D.
400 mL

Question one
D
Question two
D
Question three
C
Question four
B
Question five
A
Questions six

1
C
Question seven
A
Question eight
C
Question nine
A
Question ten
C
Question eleven
C
Question twelve
A
Question thirteen
B
Question fourteen
B
Question fifteen
D
Question sixteen
A
Question seventeen
A
Qusestion eighteen
B
Question nineteen
B
Question twenty
C

1

1
Reference
Hettleman, H. (2000). Quantity Chemistry: Classic and Physical Scientific Papers. Singapore:
World Scientific.

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