# N2 and H2 are mixed in 14:3 mass ratio. After xertain time ammonia was found to be 40% by mole. The mole fraction of N2, H2 and NH3 is:

For example,

Log2 to the base10 can be written as:

log2 to the base 2/log10 to the base 2,

Where the base 2 belongs to both 2 and 10.