Potash is any potassium mineral that is used for its
potassium content. Most of the potash produced in the
United States goes into fertilizer. The major sources of
potash are potassium chloride (KCl) and potassium
). Potash production is often reported
as the potassium oxide (K
O) equivalent or the
amount of K
O that could be made from a given mineral.
(a) If KCl costs Rs. 50 per kg, for what price (rupees
per kg) must K
be sold to supply the same
amount of potassium on a per rupee basis? (b) What
mass (in kg) of K
O contains the same number of
moles of K atoms as 1.00 kg of KCl?