CHM113 FINAL LATEST EXAM 2026
WITH 160 QUESTIONS AND
ACCURATE ANSWERS | ALREADY
GRADED A+ | GUARANTEED PASS |
CHM 113 EXAM 2026 {BRAND NEW}
What is the total concentration of phosphate ions in a 1.0 M aqueous solution of
magnesium phosphate? - ANSWER-2.0M
What volume (in mL) of a 2.33 M HCl solution would be needed to prepare 500
mL of 0.500 M HCl solution? - ANSWER-107
If 20.0 mL of 0.400 M Pb(NO3)2 and 60.0 mL of 0.200 M NaCl are mixed,
what mass (in grams) of PbCl2 precipitate will form? - ANSWER-1.67
What is the molarity (M) of sulfuric acid (H2SO4) solution if it required 15.0
mL of 0.200 M NaOH to neutralize 20.0 mL of the H2SO4 solution? -
ANSWER-.0750
Which of the following statements is false regarding energy? - ANSWER-
Kinetic energy is inversely proportional to temperature
What is the Δ E (change in internal energy) of a process in which a system
releases 15.5 J of heat and does 3.3 J of work on the surroundings? - ANSWER-
-18.8
,Which of the following is NOT a valid representation of the First Law of
Thermodynamics? - ANSWER-The two types of energy are kinetic and
potential
Which of the following is not a state function? - ANSWER-Heat (q)
A __________ Δ H corresponds to an _________ process. - ANSWER-
negative, exothermic
The value of Δ H ∘ for the reaction below is -1271 kJ:
2Ca(s)+O2(g)⟶2CaO(s)
The enthalpy change (Δ H) accompanying the reaction of 0.88 g of Ca with
oxygen gas is _________ kJ. - ANSWER--14
A 25.0 g sample of gold (Cs = 0.128 J/g⋅ ∘C) at 400 K was placed in 50.0 mL of
water (Cs = 4.184 J/g⋅ ∘C) at 298 K.
What was the final temperature of the water and the gold (in ∘C), assuming no
heat was lost to the surroundings? - ANSWER-26
Calculate ΔH for the reaction:
2N2(g)+6H2O(g)⟶3O2(g)+4NH3(g)ΔHrxn=?
Given the following reactions:
N H 3 ( g ) ⟶ 1 2 N 2 ( g ) + 3 2 H 2 ( g ) Δ H 1 = + 46 k J - ANSWER-1268kJ
Given the data in the table below, Δ H r x n ∘ for the reaction:
4NH3(g)+5O2(g)⟶4NO(g)+6H2O(l)
is __________ kJ. - ANSWER--1172
, For which of the following reactions is the value of Δ H r x n ∘ equal to Δ H f ∘
for the product? - ANSWER-C (s, graphite) + 2H2 (g) ----> CH4 (g)
Electrons in the 1s subshell are much closer to the nucleus in Ar than in He due
to the larger __________ in Ar. - ANSWER-nuclear charge
What is the effective nuclear charge (Zeff) experienced by the valence
electron(s) in the sodium ion (Na+)? - ANSWER-+9
Of the following species, which has the smallest radius? - ANSWER-Mg2+
Of the following atoms, which one has the smallest first ionization energy (I1)?
- ANSWER-B
Which equation correctly represents the first ionization energy (I1) of lithium? -
ANSWER-Li (g) ----> Li+ (g) + e-
Which of the following is NOT a compound? - ANSWER-O2, oxygen is a
molecule
What is the chemical symbol for the element, copper? - ANSWER-Cu
Which property is a chemical property - ANSWER-flammability
Which of the following mixtures is heterogeneous? - ANSWER-granite
Which of the following processes is/are physical changes? Select all that apply -
ANSWER-water evaporating, tearing a piece of aluminum in half
Which unit is NOT an SI base unit? - ANSWER-celcius
WITH 160 QUESTIONS AND
ACCURATE ANSWERS | ALREADY
GRADED A+ | GUARANTEED PASS |
CHM 113 EXAM 2026 {BRAND NEW}
What is the total concentration of phosphate ions in a 1.0 M aqueous solution of
magnesium phosphate? - ANSWER-2.0M
What volume (in mL) of a 2.33 M HCl solution would be needed to prepare 500
mL of 0.500 M HCl solution? - ANSWER-107
If 20.0 mL of 0.400 M Pb(NO3)2 and 60.0 mL of 0.200 M NaCl are mixed,
what mass (in grams) of PbCl2 precipitate will form? - ANSWER-1.67
What is the molarity (M) of sulfuric acid (H2SO4) solution if it required 15.0
mL of 0.200 M NaOH to neutralize 20.0 mL of the H2SO4 solution? -
ANSWER-.0750
Which of the following statements is false regarding energy? - ANSWER-
Kinetic energy is inversely proportional to temperature
What is the Δ E (change in internal energy) of a process in which a system
releases 15.5 J of heat and does 3.3 J of work on the surroundings? - ANSWER-
-18.8
,Which of the following is NOT a valid representation of the First Law of
Thermodynamics? - ANSWER-The two types of energy are kinetic and
potential
Which of the following is not a state function? - ANSWER-Heat (q)
A __________ Δ H corresponds to an _________ process. - ANSWER-
negative, exothermic
The value of Δ H ∘ for the reaction below is -1271 kJ:
2Ca(s)+O2(g)⟶2CaO(s)
The enthalpy change (Δ H) accompanying the reaction of 0.88 g of Ca with
oxygen gas is _________ kJ. - ANSWER--14
A 25.0 g sample of gold (Cs = 0.128 J/g⋅ ∘C) at 400 K was placed in 50.0 mL of
water (Cs = 4.184 J/g⋅ ∘C) at 298 K.
What was the final temperature of the water and the gold (in ∘C), assuming no
heat was lost to the surroundings? - ANSWER-26
Calculate ΔH for the reaction:
2N2(g)+6H2O(g)⟶3O2(g)+4NH3(g)ΔHrxn=?
Given the following reactions:
N H 3 ( g ) ⟶ 1 2 N 2 ( g ) + 3 2 H 2 ( g ) Δ H 1 = + 46 k J - ANSWER-1268kJ
Given the data in the table below, Δ H r x n ∘ for the reaction:
4NH3(g)+5O2(g)⟶4NO(g)+6H2O(l)
is __________ kJ. - ANSWER--1172
, For which of the following reactions is the value of Δ H r x n ∘ equal to Δ H f ∘
for the product? - ANSWER-C (s, graphite) + 2H2 (g) ----> CH4 (g)
Electrons in the 1s subshell are much closer to the nucleus in Ar than in He due
to the larger __________ in Ar. - ANSWER-nuclear charge
What is the effective nuclear charge (Zeff) experienced by the valence
electron(s) in the sodium ion (Na+)? - ANSWER-+9
Of the following species, which has the smallest radius? - ANSWER-Mg2+
Of the following atoms, which one has the smallest first ionization energy (I1)?
- ANSWER-B
Which equation correctly represents the first ionization energy (I1) of lithium? -
ANSWER-Li (g) ----> Li+ (g) + e-
Which of the following is NOT a compound? - ANSWER-O2, oxygen is a
molecule
What is the chemical symbol for the element, copper? - ANSWER-Cu
Which property is a chemical property - ANSWER-flammability
Which of the following mixtures is heterogeneous? - ANSWER-granite
Which of the following processes is/are physical changes? Select all that apply -
ANSWER-water evaporating, tearing a piece of aluminum in half
Which unit is NOT an SI base unit? - ANSWER-celcius
