Chemistry CP

Homework Read Ch. 2.2 p.33-42 Be prepared for a multiple choice quiz on Monday 8-31-15 1 2 3 4

Metric System International System of Units (SI) Length – meter (m) Mass – gram (g) Volume – liter (L or l) Time – second (s) Temperature – Celsius (C) or Kelvin (K) Amount of substance – Mole (mol) Energy- Joule (J) 1 2 3 4

Metric System Tools Mass (g): gram scale Length (m): Ruler and Meter Stick Volume (L): Graduated Cylinder Noooooo Beaker!!!!

Metric System Units (SI)in NB Used For Tools Gram (g) Mass Gram Scale Meter (m) Length Ruler and Meter Stick Liter(L) Volume Graduated Cylinder 1 2 3 4

Metric System Scale 1 2 3 4 Multiple Big Small Division 1 Base Units (g,m,L) 1 2 3 4 0.1 Tenth Deci (d) 0.01 Hundredth Centi (c) 0.001 Thousandth Milli (m) 1000 Thousand Kilo (k) 100 Hundred Hecto (h) 10 Ten Deka (da) Division

Metric System Prefixes Metric Units Prefix Symbol 1,000,000,000,000 1012 tera T 1,000,000,000 109 giga G 1,000,000 106 mega M 1,000 103 kilo k 100 102 hecto h 10 deka da   0.1 10-1 deci d 0.01 10-2 centi c 0.001 10-3 milli m 0.000001 10-6 micro μ 0.000000001 10-9 nano n 0.000000000001 10-12 pico p 1 2 3 4

Metric System Conversions   Length (m) Mass (g) Volume (L) 1000 m= 1 km 1000 g= 1 kg 1000 L= 1 kL 100 m= 1 hm 100 g= 1 hg 100 L= 1 hL 10 m= 1 dam 10 g= 1 dag 10 L= 1 daL 1 m= 10 dm 1 g= 10 dg 1 L= 10 dL 1 m= 100 cm 1 g= 100 cg 1 L= 100 cL 1 m= 1000 mm 1 g= 1000 mg 1 L= 1000 mL

Dimensional Analysis (1 Step) You must use a conversion factor!!! How many milliliters are in 0.005 liters? 0.005𝐿 1 ( 1000 𝑚𝐿 1 𝐿 )= 5 mL

Dimensional Analysis (2 Step) If you do not have a conversion factor between the given unit and the one you are looking for, you must do two conversions. How many milliliters are in 0.005 kiloliters? 0.005𝑘𝐿 1 ( 1000𝐿 1 𝑘𝐿 ) ( 1000 𝑚𝐿 1 𝐿 )= 5000 mL

Dimensional Analysis (1 Step) 230 mm =___m 67 L= __daL 98,057 g= __dg 5.40x10-7 kg= __g 4.77x10-2 hm= __m 67𝐿 1 ( 1 𝑑𝑎𝐿 10 𝐿 )= 6.7 daL 98057𝑔 1 ( 10 𝑑𝑔 1 𝑔 )= 980570dg 5.40𝑥10−7 𝑘𝑔 1 ( 1000 𝑔 1 𝑘𝑔 )= 5.4x10-4 kg 4.77𝑥10−2 ℎ𝑚 1 ( 100 𝑚 1 ℎ𝑚 )= 4.77 m

Dimensional Analysis (2 Step) 230 mm =__km 67 hL= __daL 98,057 dg= _dag 5.40x10-7 kg= _mg 4.77x10-2 hm= _cm 230𝑚𝑚 1 ( 1𝑚 1000𝑚𝑚 )( 1𝑘𝑚 1000𝑚 )= 2.3x10-4 km 67ℎ𝐿 1 ( 100𝐿 1ℎ𝐿 )( 1 𝑑𝑎𝐿 10 𝐿 )= 670 daL 98057𝑑𝑔 1 ( 1𝑔 10𝑑𝑔 )( 1 𝑑𝑎𝑔 10 𝑔 )= 980.57 dag 5.40𝑥10−7 𝑘𝑔 1 ( 1000𝑔 1𝑘𝑔 )( 1000𝑚𝑔 1𝑔 )= 0.54 mg 4.77𝑥10−2ℎ𝑚 1 ( 100𝑚 1ℎ𝑚 )( 100𝑐𝑚 1 𝑚 )= 477 cm