The ionisation constant of NH_3 is 1.77 xx 10^(-5). What is the 'a' and 'pH' of 0.05M ammonia solution?

The ionisation constant of NH_3 is 1.77 xx 10^(-5). What is the 'a' an

1.	The ionisation constant of NH_3 is 1.77 xx 10^(-5). What is the 'a' and 'pH' of 0.05M ammonia solution?
Answer» SOLUTION :`alpha=0.018, pH=10.97`