Information & Resources

Graduation

Boston College has three graduations each year: May, December, and August. For information on submission of a dissertation, refer to the Graduate School of Arts & Sciences website.


Graduation Deadlines

For those wishing to graduate in either August or December, the deadline for submitting signed and approved copies of theses and dissertations is either August 1 or December 1.

For May graduates, the deadline for submission of signed and approved copies of theses and dissertations is April 1.


Resources

Contact the BCC Graduate Studies Committee jianmin.gao@bc.edu

Contact the Associate Director of Administration and Graduate Student Services dale.mahoney.1@bc.edu

Course Information and Scheduling

BC Office of Residential Life

Chemistry Librarian

Registration & Scheduling

Graduate Studies

For information on or assistance with registering for a graduate course, please contact:

Professor Jianmin Gao
Chair, Graduate Chemistry Studies
Merkert 302
(617) 552-8096

Undergraduate Studies

For course overrides, laboratory course overrides, departmental permission to take a lecture course, or general registration related matters, please contact:

Professor Lynne A. O'Connell, Director, Introductory Chemistry Laboratories
Chair, Undergraduate Chemistry Studies
Merkert 111
(617) 552-3626

Periodic Table
Using WebElements, a periodic table database.

NIST Fundamental Physical Constants
The values of the basic constants and conversion factors of physics and chemistry.

Fundamental Physical Constants / Naturkonstanten

English/German

Exponent (base 10) of decimal numbers: e n = 10^n . Units are separated by spaces, positive numbers denote powers, all units to the right of the slash are in the denominator (negative powers).

Planck constant / Plancksches Wirkungsquantum h
    6.6260755e-34 J s
    h/(2 pi) = 1.05457266e-34 J s

Boltzmann constant / Boltzmannsche Konstante k_B
    
 1.380658e-23 J/K

Elementary charge / Elementarladung e
    1.60217733e-19 C

Avogadro number / Avogadrosche Zahl N_A
    
 6.0221367e23 particles/mol

Speed of light / Lichtgeschwindigkeit c
    2.99792458e8 m/s

Permeability of vacuum / Permeabilität des Vakuums mu_0
    mu_0 = 4 pi e-7 T2 m3/J
    12.566370614e-7 T2 m3/J

Permittivity of vacuum / Dielektrizitätskonstante des Vakuums epsilon_0
    epsilon_0 = 1 / (mu_0 c^2)
    
 8.854187817e-12 C2/J m

Fine structure constant / Feinstrukturkonstante 1 / alpha
    
 137.0359895

Electron rest mass / Elektronenruhemasse m_e
    
 9.1093897e-31 kg

Proton rest mass / Protonenruhemasse m_p
    1.6726231e-27 kg

Neutron rest mass / Neutronenruhemasse m_n
    
 1.6749286e-27 kg

Bohr magneton / Bohrsches Magneton mu_B
    mu_B = eh/(4 pi m_e)
    
 9.2740154e-24 J/T

Nuclear magneton / Kernmagneton mu_N
    mu_N = eh/(4 pi m_p)
    
 5.0507866e-27 J/T

Free electron g factor / g-Faktor des freien Elektrons g_e
    2.002319304386

Free electron gyromagnetic ratio / gyromagnetisches Verhältnis des freien Elektrons gamma_e
    
 gamma_e = 2 pi g_e mu_B / h
    
 1.7608592e11 1/s T
    gamma_e/(2 pi) = 28.024944 GHz/T

Electron magnetic moment / magnetisches Moment des Elektrons mu_e

     mu_e = -(1/2) g_e mu_B
    -9.2847701e-24 J/T

Proton gyromagnetic ratio (H2O) / gyromagnetisches Verhältnis der Protonen in Wasser gamma_p
    2.67515255e8 1/s T
    gamma_p/(2 pi) = 42.576375 MHz/T

Proton magnetic moment / magnetisches Moment des Protons mu_p
    1.41060761e-26 J/T

Proton-electron ratios / Proton-Elektron-Verhältnisse
    m_p/m_e = 1836.152701
    mu_e/mu_p = 658.2106881
    gamma_e/gamma_p = 658.2275841 (protons in water)

Charge-to-mass ratio for electron / Ladungs-Masse-Verhältnis des Elektrons e / m_e
    1.75880e11 C/kg

Atomic mass unit / Einheit der Atommasse amu
    1.66057e-27 kg

Bohr radius / Bohrscher Radius a_0
    5.29177e-11 m

Electron radius / Elektronenradius r_e
    2.81792e-15 m

Gas constant / Gaskonstante R
    
 R = N_A k_B
    8.3143 m2 kg/s2 K mol

Molar volume / Molvolumen V_mol
    
 22.41383 m3/kmol

Faraday constant / Faradaysche Konstante F
     F = N_A e
    
 9.64846e4 C/mol

Proton g factor (Lande factor) / g-Faktor des Protons g_H
    5.585

Gravitational constant / Gravitationskonstante G
    6.6732e-11 m3/kg s2

Acceleration due to gravity / Erdbeschleunigung g
    9.80665 m/s2

Compton wavelength of the electron / Compton-Wellenlänge des Elektrons lambda_c
    lambda_c = h / (m_e c)
    
 2.42631e-12 m

Further Useful Constants / Weitere nützliche Konstanten

Atomic energy unit / atomare Energieeinheit Hartree
    
 1 Hartree = e^2 /(4 pi epsilon_0 a_0)
    
 1 Hartree = 2.625501e+06 J/mol (approx. 627.5 kcal/mol)

Useful Conversion Factors / Nützliche Umrechnungsfaktoren

NMR (Nuclear Magnetic Resonance)

Proton Larmor frequency
    nu_p = gamma_p/(2 pi) B
    
 nu_p = 42.5764 MHz/T (H2O)

EPR (Electron Paramagnetic Resonance, ESR)

Electron Larmor frequency
    nu_e = gamma_e/(2 pi) g/g_e B
    nu_e [GHz] = 13.9962 g B[T]
    g = 0.07144775 nu_e[GHz]/B[T]
    g = 3.04199 nu_e[GHz]/nu_p[MHz]
    B [T] = 0.0234872 nu_p[MHz]
Conversion of Units
    1 G = 0.1 mT
    1 T = 10 kG
    1 mT = 10 G
    A[MHz] = 2.80249 (g/g_e) A[G]
    A[MHz] = 28.0249 (g/g_e) A[mT]
    A[MHz] = 13.9962 g A[mT]
    A[MHz] = 2.99792e4 A[1/cm]
    A[1/cm] = 0.333564e-4 A[MHz]
    A[1/cm] = 4.66863e-4 g A[mT]

Metric Prefixes

Conversions from a multiple or submultiple to the basic units of meters, liters, or grams can be done using the table. For example, to convert from kilometers to meters, multiply by 1,000 (9.26 kilometers equals 9,260 meters) or to convert from meters to kilometers, multiply by 0.001 (9,260 meters equals 9.26 kilometers).

Prefix Symbol Length, weight, or capacity Area Volume
exa E 10^18 10^36 10^54
peta P 10^15 10^30 10^45
tera T 10^12 10^24 10^36
giga G 10^9 10^18 10^27
mega M 10^6 10^12 10^18
hectokilo hk 10^5 10^10 10^15
myria ma 10^4 10^8 10^12
kilo k 10^3 10^6 10^9
hecto h 10^2 10^4 10^6
basic unit - 1 meter, 1gram, 1 liter 1 meter^2 1 meter^3
deci d 10-^1 10-^2 10-^3
centi c 10-^2 10-^4 10-^6
milli m 10-^3 10-^6 10-^9
decimilli dm 10-^4 10-^8 10-^12
centimilli cm 10-^5 10-^10 10-^15
micro u 10-^6 10-^12 10-^18
nano n 10-^9 10-^18 10-^27
pico p 10-^12 10-^24 10-^36
femto f 10-^15 10-^30 10-^45
atto a 10-^18 10-^36 10-^54

Basic Units

English/German

length / Länge
        meter (British: metre) / Meter: m
mass / Masse
        kilogram / Kilogramm: kg
time / Zeit
        second / Sekunde: s
electric current / elektrische Stromstärke
        ampere / Ampere: A
thermodynamic temperature / thermodynamische Temperatur
        kelvin / Kelvin: K
amount of substance / Substanzmenge
        mole / Mol: mol
luminous intensity / Lichtstärke
        candela / Candela: cd

SI Derived Units / Abgeleitete SI-Einheite

English/German

Frequency / Frequenz
        hertz: Hz = 1/s
Force / Kraft
        newton: N = m kg/s2
Pressure, stress / Druck, mechan. Spannung
        pascal: Pa = N/m2 = kg/m s2
Energy, work, quantity of heat / Energie, Arbeit, Wärmemenge
        joule: J = N m = m2 kg/s2
Power, radiant flux / Leistung
        watt: W = J/s = m2 kg/s3
Quantity of electricity, electric charge / elektrische Ladung
        coulomb: C = s A
Electric potential / elektrische Spannung
        volt: V = W/A = m2 kg/s3 A
Capacitance / Kapazität
        farad: F = C/V = s4 A2/m2 kg
Electric resistance / elektrischer Widerstand
        ohm: Omega = V/A = m2 kg/s3 A2
Conductance / elektr. Leitfähigkeit
        siemens: S = A/V = s3 A2/m2 kg

Magnetic flux / magnetischer Fluß
        weber: Wb = V s = m2 kg/s2 A
Magnetic flux density, magnetic induction / Magnetische Induktion
        tesla: T = Wb/m2 = kg/s2 A
Inductance / Induktivität
        henry: H = Wb/A = m2 kg/s2 A2
Luminous flux / Lichtstrom
        lumen: lm = cd sr
Illuminance / Beleuchtungsstärke
        lux: lx = lm/m2 = cd sr/m2
Activity (ionizing radiations) / Radioaktivität
        becquerel: Bq = 1/s
Absorbed dose / Absorbierte (Strahlen-)Dosis
        gray: Gy = J/kg = m2/s2 
Dynamic viscosity / Dynamische Viskosität
        pascal second: Pa s = kg/m s
Moment of force / Drehmoment
        meter newton: N m = m2 kg/s2
Surface tension / Oberflächenspannung
        newton per meter: N/m = kg/s2
Heat flux density, irradiance / Wärmeflußdichte
       watt per square meter: W/m2 = kg/s3
Heat capacity, entropy / Wärmekapazität, Entropie
        joule per kelvin: J/K = m2 kg/s2 K
Specific heat capacity, specific entropy / Spezifische Wärmekapazität, spezifische Entropie
        joule per kilogram kelvin: J/kg K = m2/s2 K

Specific energy / Spezifische Energie
        joule per kilogram: J/kg = m2/s2
Thermal conductivity / Thermische Leitfähigkeit
        watt per meter kelvin: W/m K = m kg/s3 K
Energy density / Energiedichte
        joule per cubic meter: J/m3 = kg/m s2
Electric field strength / Elektrische Feldstärke
        volt per meter: V/m = m kg/s3 A
Electric charge density / Elektrische Ladungsdichte
        coulomb per cubic meter: C/m3 = s A/m3
Electric displacement, electric flux density / Elektrische Flußdichte
        coulomb per square meter: C/m2 = s A/m2

Permittivity / Influenz
        farad per meter: F/m = s4 A2/m3 kg
Permeability / Permeabilität
        henry per meter: H/m = m kg/s2 A2
Molar energy / Molare Energie
        joule per mole: J/mol = m2 kg/s2 mol
Molar entropy, molar heat capacity / Molare Entropie, molare Wärmekapazität
        joule per mole kelvin: J/mol K = m2 kg/s2 K mol
Exposure (ionizing radiations) / Exposition
        coulomb per kilogram: C/kg = s A/kg
Absorbed dose rate / Absorbierte Dosisrate
        gray per second: Gy/s = m2/s3

 

cgs Units / cgs-Einheiten

erg
        1 erg = E-7 J
dyne
        1 dyn = E-5 N
poise
        1 P = 1 dyn s/cm2 = 0.1 Pa s
stokes
        1 St = 1 cm2/s = E-4 m2/s
gauss
        1 G = E-4 T
oersted
        1 Oe = (1000/(4 pi)) A/m
maxwell
        1 Mx = E-8 Wb
stilb
        1 sb = 1 cd/cm2 = E4 cd/m2
phot
        1 ph = E4 lx

 

Common Equivalent Weights and Measures

Units Metric Equivalent U.S. Measures
acre 0.404 685 64 hectares 43,560 feet^2
acre 4,046.8564 meters^2 4,840 yards^2
acre 0.004 046 856 4 kilometers^2 0.001 562 5 miles^2, statute
are 100 meters^2 119.599 yards^2
barrel, (petroleum, US) 158.987 29 liters 42 gallons
barrel, (proof spirits, US) 151.416 47 liters 40 gallons
barrel, (beer, US) 117.347 77 liters 31 gallons
bushel 35.239 07 liters 4 pecks
cable 219.456 meters 120 fathoms
chain (surveyor's) 20.116 8 meters 66 feet
cord (wood) 3.624 556 meters^3 128 feet^3
cup 0.236 588 2 liters 8 ounces, liquid (US)
degrees, Celsius (water boils at 100 degrees C, freezes at 0 degrees C) multiply by 1.8 and add 32 to obtain degrees F
degrees, Fahrenheit subtract 32 and divide by 1.8 to obtain degrees C water boils at 212 degrees F, freezes at 32 degrees F
dram, avdp. 1.771 845 2 grams 0.0625 5 ounces, avdp.
dram, troy 3.887 934 6 grams 0.125 ounces, troy
dram, liquid (US) 3.696 69 milliliters 0.125 ounces, liquid
fathom 1.828 8 meters 6 feet
foot 30.48 centimeters 12 inches
foot 0.304 8 meters 0.333 333 3 yards
foot 0.000 304 8 kilometers 0.000 189 39 miles, statute
foot^2 929.030 4 centimeters^2 144 inches^2
foot^2 0.092 903 04 meters^2 0.111 111 1 yards^2
foot^3 28.316 846 592 liters 7.480 519 gallons
foot^3 0.028 316 847 meters^3 1,728 inches^3
furlong 201.168 meters 220 yards
gallon, liquid (US) 3.785 411 784 liters 4 quarts, liquid
gill (US) 118.294 118 milliliters 4 ounces, liquid
grain 64.798 91 milligrams 0.002 285 71 ounces, advp.
gram 1,000 milligrams 0.035 273 96 ounces, advp.
hand (height of horse) 10.16 centimeters 4 inches
hectare 10,000 meters^2 2.471 053 8 acres
hundredweight, long 50.802 345 kilograms 112 pounds, avdp.
hundredweight, short 45.359 237 kilograms 100 pounds, avdp.
inch 2.54 centimeters 0.083 333 33 feet
inch^2 6.451 6 centimeters^2 0.006 944 44 feet^2
inch^3 16.387 064 centimeters^3 0.000 578 7 feet^3
inch^3 16.387 064 milliliters 0.029 761 6 pints, dry
inch^3 16.387 064 milliliters 0.034 632 0 pints, liquid
kilogram 0.001 tons, metric 2.204 623 pounds, avdp.
kilometer 1,000 meters 0.621 371 19 miles, statute
kilometer^2 100 hectares 247.105 38 acres
kilometer^2 1,000,000 meters^2 0.386 102 16 miles^2, statute
knot (1 nautical mi/hr) 1.852 kilometers/hour 1.151 statute miles/hour
league, nautical 5.559 552 kilometers 3 miles, nautical
league, statute 4.828.032 kilometers 3 miles, statute
link (surveyor's) 20.116 8 centimeters 7.92 inches
liter 0.001 meters^3 61.023 74 inches^3
liter 0.1 dekaliter 0.908 083 quarts, dry
liter 1,000 milliliters 1.056 688 quarts, liquid
meter 100 centimeters 1.093 613 yards
meter^2 10,000 centimeters^2 1.195 990 yards^2
meter^3 1,000 liters 1.307 951 yards^3
micron 0.000 001 meter 0.000 039 4 inches
mil 0.025 4 millimeters 0.001 inch
mile, nautical 1.852 kilometers 1.150 779 4 miles, statute
mile^2, nautical 3.429 904 kilometers^2 1.325 miles^2, statute
mile, statute 1.609 344 kilometers 5,280 feet or 8 furlongs
mile^2, statute 258.998 811 hectares 640 acres or 1 section
mile^2, statute 2.589 988 11 kilometers^2 0.755 miles^2, nautical
minim (US) 0.061 611 52 milliliters 0.002 083 33 ounces, liquid or one-sixtieth of a dram
ounce, avdp. 28.349 523 125 grams 437.5 grains
ounce, liquid (US) 29.573 53 milliliters 0.062 5 pints, liquid
ounce, troy 31.103 476 8 grams 480 grains
pace 76.2 centimeters 30 inches
peck 8.809 767 5 liters 8 quarts, dry
pennyweight 1.555 173 84 grams 24 grains
pint, dry (US) 0.550 610 47 liters .5 quarts, dry
pint, liquid (US) 0.473 176 473 liters 0.5 quarts, liquid
point (typographical) 0.351 459 8 millimeters 0.013 837 inches
pound, avdp 453.592 37 grams 16 ounces, avdp
pound, troy 373.241 721 6 grams 12 ounces, troy
quart, dry (US) 1.101 221 liters 2 pints, dry
quart, liquid (US) 0.946 352 946 liters 2 pints, liquid
quintal 100 kilograms 220.462 26 pounds, avdp.
rod 5.029 2 meters 5.5 yards
scruple 1.295 978 2 grams 20 grains
section (US) 2.589 988 1 kilometers^2 1 mile^2, statute or 640 acres
span 22.86 centimeters 9 inches
stere 1 meter^3 1.307 95 yards^3
tablespoon 14.786 76 milliliters 3 teaspoons
teaspoon 4.928 922 milliliters 0.333 333 tablespoons
ton, long or deadweight 1,016.046 909 kilograms 2,240 pounds, avdp.
ton, metric 1,000 kilograms 2,204.623 pounds, avdp.
ton, metric 1,000 kilograms 32,150.75 ounces, troy
ton, register 2.831 684 7 meters^3 100 feet^3
ton, short 907.184 74 kilograms 2,000 pounds, avdp.
township (US) 93.239 572 kilometers^2 36 miles^2, statute
yard 0.914 4 meters 3 feet
yard^2 0.836 127 36 meters^2 9 feet^2
yard^3 0.764 554 86 meters^3 27 feet^3
yard^3 764.554 857 984 liters 201.974 gallons