Chemistry 130 Quiz #1-A
1.
Fill in the table below with the appropriate information. Specifically, report the number of
significant figures for each value and also provide the absolute uncertainty.
(1 point each, 8 points total)
a.
Number of Significant Figures
Absolute Uncertainty
120.0 m
y
0
12 cm
2
1 c~
9800 L
.f)
1 \
loo L
L
b.
Number of Significant Figures
~L?:>1.5X\D
2~9x10·~
~
2.
'\"
~O
J
What is the answer to the equation shown below rounded to the proper number of
significant figures? Place a box around your final answer. (2 points)
(2.002 -1.040)
33.25
O\CtbL _
\
O~ 62...%-S ~52-
33t2.S
b~()n'\
4.
\
What is the answer to the equation shown below rounded to the proper number of
significant figures? Place a box around your f~er.
(2 points)
4.15-0.0008+0.8508=
3.
Proper Form of Scientific
Notation
1
Convert 12.35 kg to ng. Put your answer in scientific notation and place a box around
vour final answer. To receive full credit. vou must use dimensional analvsis to solve this
\,z ~ - ~
2> -=:>
't~~
~::::'=:;------I
\X\.u~V\~
Chemistry 130 Quiz #1-8
1.
Fill in the table below with the appropriate information. Specifically, report the number of
significant figures for each value and also provide the absolute uncertainty.
(1 point each, 8 points total)
a.
Number of Significant Figures
Absolute Uncertainty
G\
2045000 cL
90.140 m
\000
S
435g
e....-L
VeOl) \ ~
S
''\
b.
Proper Form of Scientific
Notation
Number of Significant Figures
-S
L
0.00230x10
\.J...AJ
3.
A ,7Jo
J-O,{\
=
\
;(l(9,163-')
,,~~,[ ;:r.
l)\~\G~
f'--,
-l-~~
j
What is the answer to the equation shown below rounded to the proper number of
significant figures? Place a box around your final answer. (2 points)
0.00009 + 1.0~ - 0.02030 + 0.00021 ~
4.
\
What is the answer to the equation shown below rounded to the proper number of
significant figures? Place a box around your final answer. (2 points)
20.11 x (8.003 -7.040)
2.
X\o
IT
00 b
7
Convert 9.62 I..lgto kg. Put your answer in scientific notation and place a box around
your final answer. To receive full credit, you must use dimensional analysis to solve this
problem. (3 points)
\00Q
3'