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CSM CHEM 210 Final Exam Questions and Correct Answers, With Complete Solution 2024.
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CSM CHEM 210 Final Exam Questions and Correct Answers, With Complete Solution 2024. If the fuel efficiency of an automobile is 22 miles per gallon, what is its fuel efficiency in Kilometers per liter? ( 1Km= 0.621 mile, 1.00 L=1.057 quarts and 4 quarts = 1 gallon) 9.4 Km/L *What is the correct...

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  • February 14, 2024
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  • 2023/2024
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CSM CHEM 210 Final Exam Questions and
Correct Answers, With Complete Solution 2024.
If the fuel efficiency of an automobile is 22 miles per gallon, what is its fuel
efficiency in Kilometers per liter? ( 1Km= 0.621 mile, 1.00 L=1.057 quarts and 4
quarts = 1 gallon)
9.4 Km/L
*What is the correct answer to the following expression:
(49.1 - 42.61 ) x 13.1?
85
An intensive property of a substance is independent of amount.
True
Lithium has two stable isotopes with masses of 6.01512 amu and 7.01600 amu.
The average atomic mass of Li is 6.941 amu. What is the percent abundance of
each isotope?
7.493% Li-6 and 92.51% Li-7
C3H8 + O2 --> CO2 + H2O (unbalanced) How many grams of oxygen are required
to burn 36.0 grams of C3H8?
131 g
*There are __________ mol of bromide ions in 0.500 L of a 0.500 M solution of
AlBr3
We put 0.250 - WRONG
FIGURED OUT 0.75
Aluminum reacts with chlorine to produce aluminum chloride. If 2.00 moles of Al
reacts with excess Cl2, how many grams of AlCl3 can be formed?

Al + Cl2 -----> AlCl3 . ( unbalanced)
266 g
A mixture of MgCO3 and MgCO3.3H2O has a mass of 2.883 g. After heating to
drive off all the water the mass is 2.427 g. What is the mass percent of
MgCO3.3H2O in the mixture?
40.4
A precipitation is expected when an aqueous solution of sodium iodide is added
to an aqueous solution of
Mercury(I) chloride
For the reaction

Pb(s) + PbO2(s) + 2 H+(aq) + 2HSO4-(aq) -->2PbSO4(s) + 2H2O(l)

The oxidizing agent ( be specific) is ________
Pb in PbO2
Based on the equations below, which metal is the least active?
Pb(NO3)2(aq) + Ni (s) --> Ni(NO3)2 (aq)+ Pb(s)

, Pb(NO3)2(aq) + Ag(s) --> No reaction
Cu(NO3)2(aq) + Ni(s) --> Ni(NO3)2(aq) + Cu(s)
Cannot be determined
Calculate the molarity of the solution that contains 40.0 g of NaOH in 100. mL of
solution
10.0 M
*What volume of 0.150 M H2SO4 is required to titrate 50.0 mL of 1.00 M NaOH?
167 mL
How many chloride ions (Cl-1) are present in 83.6 g FeCl3?
I put 3.10 x 10^23 - WRONG
FOUND 9.31 x 10^23
Which of the following particles will not be deflected by charged plates?
γ (gamma) particle

TO KNOW:
alpha particle = positive
beta particle = negative
gamma particle = no charge

alpha flow towards negative side
beta flow towards positive side
SO, the gamma (neutral) particle is answer
0.314 g of oxalic acid dihydrate (MM = 126 g/mole) is neutralized by 28.5 mL NaOH
solution.

Find the concentration of NaOH.

H2C2O4 + NaOH --> Na2C2O4 + H2O (unbalanced)
0.175 M
What is the percentage of mass of oxygen in the compound C8H8O2?
23.5%
*A sample of 16.0 g of ozone, O3, contains the same number of atoms as
I put: 40.0 g of aluminum - WRONG
R put 16.0 g Sulfur - WRONG
Don't know right answer
If 100.0 g of O2 are mixed with 20.0 g of H2 and the mixture is ignited, what mass
of water is produced?
113 g
When 0.926 g of a metal oxide is heated, the compound decomposes in the
reaction shown below. 2 M2O(s) --> 4 M (s) + O2(g) If 0.06390 g O2 is produced,
what is the identity of the metal?
Ag
*Which of the following is a nonelectrolyte in aqueous solution?
I put HF - WRONG
maybe ethanol - C2H5OH
Don't know correct answer

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