Chemistry Eoc Assessment Reference Materials (Page 2 of 4) in pdf

Chemistry Eoc Assessment Reference Materials Page 2

Chemistry EOC Assessment

Reference Materials

Constants/Conversions

Avogadro’s number = 6.02 × 10

particles per mole

L · atm

Ideal gas constant (R) = 0.0821

mol · K

= 8.31 L · kPa

mol · K

L · mm Hg

= 62.4

mol · K

Standard temperature and pressure (STP) = 0°C and 1 atm

Volume of ideal gas at STP = 22.4

mol

0°C = 273 K

1 atm = 760 mm Hg = 101.3 kPa

Beta particle (β) = e

–1

Alpha particle (α) = He

Neutron = n

c = speed of light = 3.00 × 10

m/s

1 cm

= 1 mL = 1 cc

1 calorie (cal) = 4.18 joules (J)

1000 calories (cal) = 1 Calorie (Cal) = 1 kilocalorie (kcal)

( )

mol

= 1.00 × 10

–14

Rules for Significant Figures

1. Non-zero digits and zeros between non-zero digits are always significant.

2. Leading zeros are not significant.

3. Zeros to the right of all non-zero digits are only significant if a decimal point is shown.

4. For values written in scientific notation, the digits in the coefficient are significant.

5. In a common logarithm, there are as many digits after the decimal point as there are

significant figures in the original number.

Chemistry Eoc Assessment Reference Materials Page 2