Example $1$ Given $50g$ of soil are extracted with $200ml$ Of $N{H}_4$OAc.

The extract is diluted by a factor of $25.$ Upon analysis of the final solution. $4ppm$ of $K+$ are found.

Calculate: a$.$ ppm of $K$ in soil

b$.,pp2m$ of $K$ in the soil

c$.$ lbs$./$acre of $K$

d$.$ meq $\frac{K}{100}g$ of soil

Answer:

a$.400ppmK$

b$.800pp2mK$

c$.800lbs.$ K$/$acre $6$

d$.1\mathrm{.}02$meq$\frac{K}{100}g$ soil