Recognised as Musical note
C2
- C2
- 65.41 Hz
- MIDI 36
C2 is MIDI note 36, sounding at 65.406 Hz in equal temperament with A4 = 440 Hz. Its wavelength in air is 5.2441 m, and it sits in octave 2.
Pitch
Scientific pitch notationC2
MIDI note number36
Pitch classC (0)
Octave2
As a sound wave
Wavelength in air5.2441 mat 343 m/s, dry air at 20 °C
Period15.289 ms
Frequency one octave down32.703 Hz
AudibleYeshuman hearing runs roughly 20 Hz to 20 kHz and narrows with age
Intervals from here
Octave belowC1 · 32.7 Hz
Perfect fifth belowF1 · 43.65 Hz
Semitone belowB1 · 61.74 Hz
Semitone aboveC#2 · 69.3 Hz
Major third aboveE2 · 82.41 Hz
Perfect fifth aboveG2 · 98 Hz
Octave aboveC3 · 130.81 Hz
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Also reads as
NOTeC2 (chemical formula)
- Formula
- 181.628 g/mol
- 5 atoms
NOTeC2 has a molar mass of 181.628 g/mol, made up of 5 atoms across 4 elements: 1 × N, 1 × O, 1 × Te, 2 × C.
Molar mass
Molar mass181.628 g/mol
Total atoms per molecule5
Distinct elements4
Mass of one molecule3.0160039 × 10^-22 g
Molecules per gram3.3156456 × 10^21
Name
NameNot in the name tablea name cannot be worked out from a formula alone: isomers share formulas, and naming depends on bonding the formula does not show
Composition by mass
N7.7%
O8.8%
Te70.3%
C13.2%
Nitrogen (N)14.007 g/mol, 7.712%
Oxygen (O)15.999 g/mol, 8.809%
Tellurium (Te)127.6 g/mol, 70.253%
Carbon (C × 2)24.022 g/mol, 13.226%
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