M3: Exam - Requires Respondus
n, n, n, n,
LockDown Browser + Webcam
n, n, n, n,
Question 1 n,
pts
n, n, n,
You n,may n,find n,the n,following n,resources n,helpful:
n, Scientific n,Calculator n ,
Periodic n,Table
Equation n,Table n , n , Download n,Equation n,Table n,
A n,reaction n,between n,HCl n,and n,NaOH n,is n,being n,studied n,in n,a n,styrofoam n,coffee
n,cup n,with n,a n,lid n,and n,the n,heat n,given n,off n,is n,measured n,by n, means n,of n,a
n,thermometer n,immersed n,in n,the n,reaction n,mixture. n , Enter n,the n,correct
n,thermochemistry n,term n, n,to n,describe n,the n,item n,listed.
1. The n,type n,of n,thermochemical n,process
2. The n,calorimeter n,and n,mixture n,of n,HCl n,+
NaOH n,Your n,Answer:
n,
1. Heat n,given n, off n , = n,Exothermic n,process
2. With n,lid n,= n,closed n,system
Question 2 n,
10/ 10 pts
n, n,
You n,may n,find n,the n,following n,resources n,helpful:
n, Scientific n,Calculator n ,
Periodic n,Table
Equation n,Table n , n , Download n,Equation n,Table n,
This n,study n,source n,was n,downloaded n,by n,100000899464953 n,from n,CourseHero.com n,on n,07-28-2025 n,03:27:28
n,GMT n, -05:00
https://www.coursehero.com/file/142186874/Portage-Chem-103-Mod-3-Examdocx/
, 1. Show n,the n,calculation n,of n,the n,final n,temperature n,of n,the n,mixture n,when n,a
22.8 n,gram n,sample n,of n,water n,at n,74.6oC n,is n,added n,to n,a n,14.3 n,gram n,sample n,of
n,water n,at n,24.3 C n,in n,a n,coffee n,cup n,calorimeter.
o
c n,(water) n,= n,4.184 n,J/g n,oC
2. Show n,the n,calculation n,of n,the n,energy n,involved n,in n,freezing n,54.3
n,grams n,of n,water n,at n,0 C n,if n,the n,Heat n,of n,Fusion n,for n,water n,is n,0.334 n,kJ/g
o
Your n,Answer:
1. - n,(mwarn n,H2O n , x n,cwarn n,H2O n , x n,∆twarn n,H2O) n,= n,(mcool n,H2O n , x n,ccool n,H2O n , x n,∆tcool n,H2O)
- n,[22.8 n,g n,x n,4.184 n,J/g n,oC n,x n,(Tmix n , - n,74.6oC)] n,= n,[14.3 n,g n,x n,4.184 n,J/g n,oC n,x
n,(T mix n , - n,24.3 C)]
o
- n,[95.3952 n,J/oC n,x n,(Tmix n , - n,74.6 oC)] n,= n,[59.8312 n,J/oC n,x n,(Tmix n , - n,24.3oC)]
Tmix n , = n,55.2oC
2. ql↔s n , = n,m n,x n,∆Hfusion n , = n,54.3 n,g n,x n,0.334 n,kJ/g n,= n,18.14 n,kJ n,(since n,heat n,is
n,removed)
= n , - n , 18.14 n , kJ
Question 3 n,
pts
n, n, n,
You n,may n,find n,the n,following n,resources n,helpful:
n,Scientific n,Calculator n ,
Periodic n,Table
Equation n,Table n , n , Download n,Equation n,Table n,
Show n,the n,calculation n,of n , the n , ΔH n , of n , the n,reaction n , if n , 20.7 n , g n,of n , S n,is
n , reacted n , with n,excess n, O2 n , to n,yield n,255.6 n, kJ n, and n, sulfur n, trioxide n, by n,the
n,following n, reaction n , equation. n , Report n , your n , answer n , to n , 4 n , significant
n , figures.
2 n ,S n, (s) + 3 n , O2 n , (g)→ 2 n ,SO3 n , (g)
Your n,Answer:
This n,study n,source n,was n,downloaded n,by n,100000899464953 n,from n,CourseHero.com n,on n,07-28-2025 n,03:27:28
n,GMT n, -05:00
https://www.coursehero.com/file/142186874/Portage-Chem-103-Mod-3-Examdocx/
n, n, n, n,
LockDown Browser + Webcam
n, n, n, n,
Question 1 n,
pts
n, n, n,
You n,may n,find n,the n,following n,resources n,helpful:
n, Scientific n,Calculator n ,
Periodic n,Table
Equation n,Table n , n , Download n,Equation n,Table n,
A n,reaction n,between n,HCl n,and n,NaOH n,is n,being n,studied n,in n,a n,styrofoam n,coffee
n,cup n,with n,a n,lid n,and n,the n,heat n,given n,off n,is n,measured n,by n, means n,of n,a
n,thermometer n,immersed n,in n,the n,reaction n,mixture. n , Enter n,the n,correct
n,thermochemistry n,term n, n,to n,describe n,the n,item n,listed.
1. The n,type n,of n,thermochemical n,process
2. The n,calorimeter n,and n,mixture n,of n,HCl n,+
NaOH n,Your n,Answer:
n,
1. Heat n,given n, off n , = n,Exothermic n,process
2. With n,lid n,= n,closed n,system
Question 2 n,
10/ 10 pts
n, n,
You n,may n,find n,the n,following n,resources n,helpful:
n, Scientific n,Calculator n ,
Periodic n,Table
Equation n,Table n , n , Download n,Equation n,Table n,
This n,study n,source n,was n,downloaded n,by n,100000899464953 n,from n,CourseHero.com n,on n,07-28-2025 n,03:27:28
n,GMT n, -05:00
https://www.coursehero.com/file/142186874/Portage-Chem-103-Mod-3-Examdocx/
, 1. Show n,the n,calculation n,of n,the n,final n,temperature n,of n,the n,mixture n,when n,a
22.8 n,gram n,sample n,of n,water n,at n,74.6oC n,is n,added n,to n,a n,14.3 n,gram n,sample n,of
n,water n,at n,24.3 C n,in n,a n,coffee n,cup n,calorimeter.
o
c n,(water) n,= n,4.184 n,J/g n,oC
2. Show n,the n,calculation n,of n,the n,energy n,involved n,in n,freezing n,54.3
n,grams n,of n,water n,at n,0 C n,if n,the n,Heat n,of n,Fusion n,for n,water n,is n,0.334 n,kJ/g
o
Your n,Answer:
1. - n,(mwarn n,H2O n , x n,cwarn n,H2O n , x n,∆twarn n,H2O) n,= n,(mcool n,H2O n , x n,ccool n,H2O n , x n,∆tcool n,H2O)
- n,[22.8 n,g n,x n,4.184 n,J/g n,oC n,x n,(Tmix n , - n,74.6oC)] n,= n,[14.3 n,g n,x n,4.184 n,J/g n,oC n,x
n,(T mix n , - n,24.3 C)]
o
- n,[95.3952 n,J/oC n,x n,(Tmix n , - n,74.6 oC)] n,= n,[59.8312 n,J/oC n,x n,(Tmix n , - n,24.3oC)]
Tmix n , = n,55.2oC
2. ql↔s n , = n,m n,x n,∆Hfusion n , = n,54.3 n,g n,x n,0.334 n,kJ/g n,= n,18.14 n,kJ n,(since n,heat n,is
n,removed)
= n , - n , 18.14 n , kJ
Question 3 n,
pts
n, n, n,
You n,may n,find n,the n,following n,resources n,helpful:
n,Scientific n,Calculator n ,
Periodic n,Table
Equation n,Table n , n , Download n,Equation n,Table n,
Show n,the n,calculation n,of n , the n , ΔH n , of n , the n,reaction n , if n , 20.7 n , g n,of n , S n,is
n , reacted n , with n,excess n, O2 n , to n,yield n,255.6 n, kJ n, and n, sulfur n, trioxide n, by n,the
n,following n, reaction n , equation. n , Report n , your n , answer n , to n , 4 n , significant
n , figures.
2 n ,S n, (s) + 3 n , O2 n , (g)→ 2 n ,SO3 n , (g)
Your n,Answer:
This n,study n,source n,was n,downloaded n,by n,100000899464953 n,from n,CourseHero.com n,on n,07-28-2025 n,03:27:28
n,GMT n, -05:00
https://www.coursehero.com/file/142186874/Portage-Chem-103-Mod-3-Examdocx/
