Table:
0
A
B
C
D
E
1
Coefficient
Parts-per example
Uno equiv.
Symbol form
Value of quantity
2
10 −2
2%
2 centiuno
2 cU
2×10 −2
3
10 −3
2 ‰
2 milliuno
2 mU
2×10 −3
4
10 −6
2 ppm
2 microuno
2 µU
2×10 −6
5
10 −9
2 ppb
2 nanouno
2 nU
2×10 −9
6
10 −12
2 ppt
2 picouno
2 pU
2×10 −12

Questions and formulas:
Question: What is the Parts-per example of 2×10 −6?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,E1="2×10 −6"),2))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E6,E2:E6="2×10 −6"),2))
Level: medium
Question: What is the Coefficient of 2 ppt?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,B1="2 ppt"),1))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E6,B2:B6="2 ppt"),1))
Level: medium