Recognised as Musical note
B5
- B5
- 987.77 Hz
- MIDI 83
B5 is MIDI note 83, sounding at 987.767 Hz in equal temperament with A4 = 440 Hz. Its wavelength in air is 0.3472 m, and it sits in octave 5.
Pitch
Scientific pitch notationB5
MIDI note number83
Pitch classB (11)
Octave5
As a sound wave
Wavelength in air0.3472 mat 343 m/s, dry air at 20 °C
Period1.0124 ms
Frequency one octave down493.883 Hz
AudibleYeshuman hearing runs roughly 20 Hz to 20 kHz and narrows with age
Intervals from here
Octave belowB4 · 493.88 Hz
Perfect fifth belowE5 · 659.26 Hz
Semitone belowA#5 · 932.33 Hz
Semitone aboveC6 · 1,046.5 Hz
Major third aboveD#6 · 1,244.51 Hz
Perfect fifth aboveF#6 · 1,479.98 Hz
Octave aboveB6 · 1,975.53 Hz
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Also reads as
NOTeB5 (chemical formula)
- Formula
- 211.656 g/mol
- 8 atoms
NOTeB5 has a molar mass of 211.656 g/mol, made up of 8 atoms across 4 elements: 1 × N, 1 × O, 1 × Te, 5 × B.
Molar mass
Molar mass211.656 g/mol
Total atoms per molecule8
Distinct elements4
Mass of one molecule3.5146306 × 10^-22 g
Molecules per gram2.8452493 × 10^21
Composition by mass
N6.6%
O7.6%
Te60.3%
B25.5%
Nitrogen (N)14.007 g/mol, 6.618%
Oxygen (O)15.999 g/mol, 7.559%
Tellurium (Te)127.6 g/mol, 60.287%
Boron (B × 5)54.05 g/mol, 25.537%
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