Key AP® Chemistry Constants
Avogadro's (Na)
6.022 x 10^23 mol⁻¹
Gas Const (R)
0.08206 L·atm/(mol·K)
Gas Const (R)
8.314 J/(mol·K)
Planck's (h)
6.626 x 10⁻³⁴ J·s
Speed of Light (c)
2.998 x 10⁸ m/s
Electron Mass
0.0005 amu
Proton Mass
1.007 amu
Neutron Mass
1.008 amu