GENERAL CHEMISTRY (Hand out)
1. DIMENSIONS: Distance, Area, Volume, Time, Force, Density, Temperature, Velocity,
Acceleration, specific heat.
TIME: 1 Week = 7 days; 1 Day = 24 hrs; 1 Hour = 60 minutes; 1 Minute = 60 sec
- 2. ENGLISH UNITS:
Distance Volume Mass
1 ft. = 12 in 1 Mi = 5,280 ft. 1 qt. = 2pts. 1 gal. = 4 qt. 1 lb. = 16 Oz. (Mass)
1 yd. = 3 ft. 1 pt. = 16 0z. (Vol) 1 Ton = 2000 lbs.
3. METRIC SYSTEM UNITS: Distance (Meters), Volume (Liters) Mass (Grams)
1 Mega = 106 = 1,000,000 1 deci =10 –1 = 0.1
1 Kilo = 103 = 1,000 1 centi = 10-2. =0.01
1 Hecto = 102 = 100 1 milli = 10-3 = 0.001 1 ml = cm3
1 Deka = 101 = 10 1 micro = 10-6 = 0.000001
1 nano = 10-9 = 0.000000001
4. ENGLISH - METRIC
1 in = 2.54 cm
1 L = 1.06 qts.
1 lb = 453.6 g
5. DENSITY: d = m/v ( SOLVE FOR d, v, or m)
- TEMPERATURE CONVERSIONS: F = 9/5 C + 32: C = 5/9(F-32);
K = C + 273.14
7. HEAT: q = (mass )( DT)(specific heat)
8. VELOCITY = distance/time; v = d/t
9. ACCELERATION = v/t or a = d/t2
10. FORCE : F = ma: (F = mass X acceleration; mass must be in Kg ;
acceleration in m/s2 to get unit in Newtons)
11. NEWTONS = Kg. m/s2
12. VOLUME FORMULARS: Vsphere= 4/3 pr3 Vcylinder =pr2.h Vrectangle= L x W x H
13. ISOTOPE NOTATION: ABX ( A = atomic weight of element; B = No. of protons; No.
of Protons + No. of neutrons = A; No. of protons = no. of electrons for neutral element.)
14. Mols = grams/formular weight: or = 6.02 x 1023 items;
15. Molaritiy: Mols/Liter