معلومات عن أستاذة المقرر

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معلومات عن أستاذة المقرر الاسم : د. هنادي يوسف مدراسي أستاذ الكيمياء العضوية المساعد قسم الكيمياء كلية العلوم (فرع الفيصلية) – جامعة الملك عبدالعزيز غرفة رقم 114A الدور الأرضي البريد الإلكتروني H.midrassi@gmail.com

السياسة الواجب على الطالبة الالتزام بها على الطالبة الالتزام بالتالي: - الالتزام بالباس المحترم والمحتشم في الحرم الجامعي. - حضور المحاضرة في وقتها المحدد، وعدم تكرار التأخير عن المحاضرة، حضور الامتحانات في موعدها المحدد، أداء الواجبات المطلوبة. - الطالبة التي تزيد نسبة غيابها عن 25% من مجموع المحاضرات (أي بما يعادل 8 محاضرات)، دون عذر، تحرم من دخول الامتحان النهائي.  - الطالبة التي تتخلف عن الاختبار لن يعاد لها الاختبار (إلا في حالة الظروف القاهرة لا سمح الله). عدم ارتداء العباءة في قاعة الامتحان. يجب على الطالبة إحضار الأدوات التي تحتاجها في الامتحان والآلة الحاسبة الخاصة بها. - عدم استخدام الجوال كآلة حاسبة في الامتحان. -  في حالة الغش تسحب ورقة الطالبة فوراً وتحرم من استكمال الاختبار وتقدم للجنة تأديبية.                                                                     مع أطيب التمنيات بالتوفيق،،،،

توزيع الدرجات امتحان دوري أول: 30 درجة امتحان دوري ثاني: 30 درجة امتحان دوري أول:      30  درجة امتحان دوري ثاني:     30  درجة امتحان نهائي:           40  درجة ____________________ المجموع:               100  درجة

التقديرات الدرجات التقدير 100-95 A+ 94-90 A 89-85 B+ 84-80 B 79-75 C+ 74-70 C 69-65 D+ 64-60 D ˃ 60 F

Chemistry Raymond Chang 10th ed. Copyright © The McGraw-Hill Companies, Inc.  Permission required for reproduction or display.

Chapter 1 Chemistry The Study of Change 1.7 Measurement (p.15-20) SI units . Mass and Weight Volume Density Temperature Scales. Table 1.2 & Table 1.3 Examples 1.1-1.2-1.3 1.1

International System of Units The SI System Metric System Length (L) Mass (M) Weight (W) Density (D) Volume (V) Temperature (T) Time (second)

Measurement mass - is a measure of the quantity of matter in an object SI unit of mass is the kilogram (kg) 1 kg = 1000 g = 1 x 103 g weight - force that gravity exerts on an object weight = c x mass on earth, c = 1.0 on moon, c ~ 0.1 A 1 kg bar will weigh 1 kg on earth 0.1 kg on moon 1.7

International System of Units (SI) 1.7

1.7

unit (meter-m), (gram-g), (liter-L) Exa (E)= 1018 المضاعفات Bigger unit X 10-n Peta (P)= 1015 Tera (T)= 1012 Gega (G)= 109 Mega (M)= 106 kilo (k)= 103 hecto (h)= 102 deca (da)= 101 unit (meter-m), (gram-g), (liter-L) dece (d)= 101 centi (c)= 102 mili (m)= 103 micro (ϻ)= 106 nano (n)= 109 smaller unit X 10+n pico (p)= 1012 femto (f)= 1015 atto (a)= 1018 الأجزاء

1- التحويل بين وحدات أكبر من الوحدة الأساسية (المضاعفات) (نأخذ فرق الأسس المطلقة بين الوحدات المراد التحويل بينها) Tera (1012) kilo (103) X 1012-3 = X 109 2- التحويل بين وحدات أصغر من الوحدة الأساسية (الأجزاء) (نأخذ فرق الأسس المطلقة بين الوحدات المراد التحويل بينها) dece (10-1) nano (10-9) X 101-9 = X 108 3- التحويل بين المضاعفات والأجزاء مروراً بالوحدة الأساسية (نجمع الأسس المطلقة للوحدات المراد التحويل بينها) Mega (106) nano (10-9) X 106+9 = X 1015 في حالة التحويل من وحدة كبيرة إلى وحدة صغيرة نضرب في معامل بأس موجب 10+ n أما في حالة التحويل من وحدة صغيرة إلى وحدة كبيرة نضرب في معامل بأس سالب 10- n

Volume – SI derived unit for volume is cubic meter (m3) 1 cm3 = (1 x 10-2 m)3 = 1 x 10-6 m3 1 dm3 = (1 x 10-1 m)3 = 1 x 10-3 m3 1 L = 1000 mL = 1000 cm3 = 1 dm3 1 mL = 1 cm3 1.7

Density – SI derived unit for density is kg/m3 1 g/cm3 = 1 g/mL = 1000 kg/m3 density = mass volume d = m V A piece of platinum metal with a density of 21.5 g/cm3 has a volume of 4.49 cm3. What is its mass? d = m V m = d x V = 21.5 g/cm3 x 4.49 cm3 = 96.5 g 1.7

Worked Example 1.1

Worked Example 1.2

K = 0C + 273.15 273 K = 0 0C 373 K = 100 0C 0F = x 0C + 32 9 5 32 0F = 0 0C 212 0F = 100 0C 1.7

Convert 172.9 0F to degrees Celsius. 0F = x 0C + 32 9 5 0F – 32 = x 0C 9 5 x (0F – 32) = 0C 9 5 0C = x (0F – 32) 9 5 0C = x (172.9 – 32) = 78.3 9 5 1.7

Chemistry In Action On 9/23/99, $125,000,000 Mars Climate Orbiter entered Mar’s atmosphere 100 km (62 miles) lower than planned and was destroyed by heat. 1 lb = 1 N 1 lb = 4.45 N “This is going to be the cautionary tale that will be embedded into introduction to the metric system in elementary school, high school, and college science courses till the end of time.” 1.7

Which of the following is not an SI base unit? A) kilometer B) 1 Which of the following is not an SI base unit?   A) kilometer B) kilogram C) second D) kelvin 2. Which of the following SI base units is not commonly used in chemistry?   A) kilogram B) kelvin C) candela D) mole 3 Which of the following prefixes means 1/1000?   A) kilo B) deci C) centi D) milli

What temperature is 95 °F when converted to degrees Celsius? A) 63 °C 4. What temperature is 95 °F when converted to degrees Celsius?   A) 63 °C B) 35 °C C) 127 °C D) 15 °C 5. What temperature is 37 °C when converted to kelvin?   A) 310 K B) 99 K C) 236 K D) 67 K 6 What temperature is 77 K when converted to degrees Celsius?   A) –296 °C B) 105 °C C) –196 °C D) 25 °C

What is 22.6 m when converted to decimeters? A) 0.226 dm B) 2.26 dm C) 7. What is 22.6 m when converted to decimeters?   A) 0.226 dm B) 2.26 dm C) 226 dm D) 2.26 x 10–3 dm 8. What is 25.4 mg when converted to kilograms?   A) 2540 kg B) 2.54 x10–5 kg C) 2.54 kg D) 2.54 x 104 kg 9. At what temperature does the numerical reading on a Celsius thermometer equal that on a Fahrenheit thermometer?   A) 0 °C B) –40 °C C) 100 °C D) –32 °C

A. 10-9 and 10-6. B. 106 and 10-3. C. 103 and 10-3. D. 109 and 10-6. 10. The SI prefixes giga and micro represent, respectively:  A. 10-9 and 10-6. B. 106 and 10-3. C. 103 and 10-3. D. 109 and 10-6. E. 10-9 and 10-3.  

Answer Key 1- A 5-A 9-B 2-C 6-C 10-D 3-D 7-C 4-B 8-B Problems 1.17 - 1.18 – 1.19 – 1.22 - 1.23 – 1.25 – 1.26