[试题] 102上 刘铭璋 普通化学丙 09/18小考

楼主: yungye   2014-07-07 16:44:42
课程名称︰普通化学丙
课程性质︰物治系 医技系 公卫系 职治系 护理系 药学系 大一必带
课程教师︰刘铭璋
开课学院:理学院
开课系所︰化学系
考试日期(年月日)︰09/18/2013
考试时限(分钟):10 分钟
是否需发放奖励金:是
(如未明确表示,则不予发放)
试题 :
General Chemistry 09/18/2013
1. Which of the following metric relationships is incorrect? (1 point)
-6
A) 1 microliter = 10 liters
3
B) 1 gram = 10 kilograms
3
C) 10 milliliters = 1 liter
2
D) 1 gram = 10 ccentigrams
3
E) 1 nanometers = 10 picometer
2. The three beakers shown below have different precisions as shown. (1 point)
├ 28 │ ├ 40 │ ├ 26.6 │
├ 27 │ ├ 30 │ ├ 26.5 │
├ 26 │ ├ 20 │ ├ 26.4 │
Suppose you pour the water from these three beakers into one container. What
would be the volume in the container reported to the correct number of
significant figures?
A) 78.817 mL, B) 78.82 mL, C) 78.8 mL, D) 80 mL, E) 79 mL
3. Evaluate each of the following and write the answer to the appropriate
number of significant figures. (2 point)
a. 52.331 + 26.01 - 0.9981 =
b. ( 6.404 x 2.91 ) / ( 18.7 - 17.1 ) =
4. Complete the following table: (6 point)
  ┌─────┬────┐
  │ Element │ Symbol │
  ├─────┼────┤
  │     │ Ba   │
  ├─────┼────┤
  │     │ Bi │
  ├─────┼────┤
  │ Tungsten │ │
  ├─────┼────┤
  │     │ Mn │
  ├─────┼────┤
  │ Chromium │ │
  ├─────┼────┤
  │     │ Si │
  └─────┴────┘

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