Docsity
Log inSign up
Docsity
Prepare for your exams
Prepare for your exams

Study with the several resources on Docsity

Earn points to download
Earn points to download

Earn points by helping other students or get them with a premium plan

Guidelines and tips
Guidelines and tips
Sell on Docsity
Sell on Docsity
Log inSign up

Prepare for your exams

Study with the several resources on Docsity

Find documents

Prepare for your exams with the study notes shared by other students like you on Docsity

Search Store documents

The best documents sold by students who completed their studies

Search through all study resources
Docsity AINEW

Summarize your documents, ask them questions, convert them into quizzes and concept maps

Explore questions

Clear up your doubts by reading the answers to questions asked by your fellow students

Earn points to download

Earn points by helping other students or get them with a premium plan

Share documents
download point icon20 Points

For each uploaded document

Answer questions
download point icon5 Points

For each given answer (max 1 per day)

All the ways to get free points
Get points immediately

Choose a premium plan with all the points you need

Study Opportunities

Choose your next study program

Get in touch with the best universities in the world. Search through thousands of universities and official partners

Community

Ask the community

Ask the community for help and clear up your study doubts

University Rankings

Discover the best universities in your country according to Docsity users

Free resources

Our save-the-student-ebooks!

Download our free guides on studying techniques, anxiety management strategies, and thesis advice from Docsity tutors

From our blog

Exams and Study
Go to the blog

Quiz 3b in CHEM 40 - 001: Thermochemistry and Calorimetry - Prof. Malinda E. Pauly, Quizzes of Chemistry

City College of San Francisco (CCSF)Chemistry
Prof. Malinda E. Pauly

Information for quiz 3b in the chem 40 - 001 course focusing on thermochemistry and calorimetry. Topics include specific heat, heat capacity, exothermic and endothermic reactions, and calorimetric equations. Students are required to determine the heat required to heat a specific mass of nickel, identify the reaction type based on the heat change, and calculate the heat absorbed or evolved during a nitrogen monoxide decomposition reaction.

Typology: Quizzes

Pre 2010

Uploaded on 08/18/2009

koofers-user-j4a
koofers-user-j4a 🇺🇸

10 documents

1 / 2

Toggle sidebar

This page cannot be seen from the preview

Don't miss anything!

bg1
CHEM 40
- 001
Name:
6b\.t-bI '-\
x(c*\ r
4.t3q3
QUIZ 3b (20 points)
:-"'4 -
I aoo
cr4
Spring 2009
M.Pauly
POSSIBLY
USEFUL IMORMATION:
l cal:4.184
J specific
hear tLO(l)
=4.tB4rg..C
1. Thesp€cific
beat of,oickel is
0.445 rg.K. How
much
heat
(intcaD
is requi.edtoheata
18.56
gpieceof
nickel hom 2.2 ro
216.l"C? [4
points]
f," *tt x a.'-x s(
- $.aul (+r.=
- r., ")( ".++sr7r.
zS
zvl T
vt"+,
2Nols)-2No(s)+qG) AH'""
=
114.1
kJ
a) Is the reaction
exothermic or endothermic?
How do
you
know?
en"t
oJfunj c
b) If 1.259
of NO, is converted completely
to NO and
Or, what
quantity
of heat
is absorbed
or
evolved?
-.{& A* is,
(ani4ve
(-ew61 # ,
p^l;*ds ts h)CW 1.$,"- ,".rla h)
f tr+,r
rr 4or 2n^.1 No;
l.s.r112 6
(.r5;
No2r
#fi -ll(. .Jt _
2^- ltr0r-
o. oETaqBz F14
E.1t x to ke-
Nifogenmonoxide
has
been found to be involved
in.a
\4ide
ralge ofbiological processes.
Brown Nq
g{s
can decompose
to form oxygen and
NO
gas
as shown
in rhe-thermochEmical
equation
below.
[d
porntsj
{.3s kJ
(ebs.tE<&)
pf2

Partial preview of the text

Download Quiz 3b in CHEM 40 - 001: Thermochemistry and Calorimetry - Prof. Malinda E. Pauly and more Quizzes Chemistry in PDF only on Docsity!

CHEM40- 001

Name:

6b.t-bI

'-\

x

(c*\

r

4.t3q

QUIZ 3b (

points)

I aoo

cr

Spring 2009

M.Pauly

POSSIBLYUSEFULIMORMATION:

l cal:4.184J specific heartLO(l)

=4.tB4rg..C

1.Thesp€cific beatof,oickelis 0.445rg.K. Howmuch heat(intcaDis requi.edtoheata

gpieceof

nickelhom2.2ro216.l"C?

[4 points]

f,"

*tt x a.'-x

s(

$.aul (+r.=

- r., ")(

".++sr7r.

zS

zvl

T

vt"+,

2Nols)-2No(s)+qG)

AH'""= 114.

kJ

a) Is thereaction exothermicor endothermic? Howdoyouknow?

en"toJfunj c

b) If 1.259of NO,is convertedcompletely to NO and Or,whatquantity of heatis absorbed or

evolved?

-.{& A* is,

(ani4ve

(-ew

p^l;*ds

ts h)CW 1.$,"- ,".rla

h)

f tr+,r

rr 4or

2n^.1 No;

l.s.r 112 6

(.r5;

No2r

#fi

ll(.

.Jt

_

2^- ltr0r-

o. oETaqBz F

E.1t

x to ke-

Nifogenmonoxide hasbeenfoundto beinvolved in.a\4ideralgeofbiologicalprocesses.

BrownNq

g{scandecompose to formoxygenand NO

gas asshown in rhe-thermochEmical equationbelow.

[d

porntsj

{.3s

kJ

(ebs.tE<&)

L,als -- <

-r;

-1*-v"c

Tf

Zo,z"L

  1. A pieceof leadmelalwascooled in a acetone/dry,ice bathro -78.8'C andthendrcpped into 115g of

water rvith an initial temperatureof21.5'C in an insulatedbeaker. Th€ finaj lemperatureof the metal

andthe wateris 20.2'C. The specficheatof teadis 0.127Jlg.'C. Wlaris mass;f$e meral?(Assume

no h€attmnsfersthrcugh the walls of the beakerto the atmosphe.e.)

[8 points]

+Lo

r^l!

Ti

= zt-{L

q

f I

=o

b

l1zD

D

t g,o

'-

^o.t

qro x Arjgo

x

'f1'tgo

=

6 =') (zo.z'

t- zt.s'

)

( +.e+

-6-zE,*6.

-r

I

bfr

-- n^^rs Pb

r Dfi-n

"

9t*o

67"s.sos s =

.$.'z so1 --

50.*ry

$,a.qs

Pb (A.s't>{)

i^a.!g

P:b

= r,,,,ar!

Fz < (zo.z--Lis.e)'c\o,rzls7X.d

-- laaqs

zu x

6iil

T//t

ttLo

O --

-61s

so*

t-

n^4ss

p'e(lz.s'tzs7g)