Recognised as Musical note
B8
- B8
- 7,902.13 Hz
- MIDI 119
B8 is MIDI note 119, sounding at 7,902.133 Hz in equal temperament with A4 = 440 Hz. Its wavelength in air is 0.0434 m, and it sits in octave 8.
Pitch
Scientific pitch notationB8
MIDI note number119
Pitch classB (11)
Octave8
As a sound wave
Wavelength in air0.0434 mat 343 m/s, dry air at 20 °C
Period0.1265 ms
Frequency one octave up15,804.266 Hzdoubling the frequency
Frequency one octave down3,951.066 Hz
AudibleYeshuman hearing runs roughly 20 Hz to 20 kHz and narrows with age
Intervals from here
Octave belowB7 · 3,951.07 Hz
Perfect fifth belowE8 · 5,274.04 Hz
Semitone belowA#8 · 7,458.62 Hz
Semitone aboveC9 · 8,372.02 Hz
Major third aboveD#9 · 9,956.06 Hz
Perfect fifth aboveF#9 · 11,839.82 Hz
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Also reads as
NOTeB8 (chemical formula)
- Formula
- 244.086 g/mol
- 11 atoms
NOTeB8 has a molar mass of 244.086 g/mol, made up of 11 atoms across 4 elements: 1 × N, 1 × O, 1 × Te, 8 × B.
Molar mass
Molar mass244.086 g/mol
Total atoms per molecule11
Distinct elements4
Mass of one molecule4.0531434 × 10^-22 g
Molecules per gram2.4672209 × 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
N5.7%
O6.6%
Te52.3%
B35.4%
Nitrogen (N)14.007 g/mol, 5.739%
Oxygen (O)15.999 g/mol, 6.555%
Tellurium (Te)127.6 g/mol, 52.277%
Boron (B × 8)86.48 g/mol, 35.43%
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