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Comprehension # 1 Potash is any potass...

Comprehension # 1
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 choride `(KCI)` and potassium sulphate `(K_(2)SO_(4))`. Potash production is often reported as the potassium oxide `(K_(2)O)` equivalent or the amount of `K_(2)O` that could be made from a given mineral. `KCI` cost `Rs 50 per kg`
What mass `("in kg")` of `K_(2)O` contains the same number of moles of `K` atoms as `1.00 kg KCI` ?

A

`0.158 kg`

B

`0.315 kg`

C

`1.262 kg`

D

`0.631 kg`

Text Solution

Verified by Experts

The correct Answer is:
D
mole of K in `KCl = (1000)/(74.5) = 13.42`
mole of `K_(2)O` form `13.42` mole of `K = (13.42)/(2)=6.71`
mass of `K_(2)O`
`=6.71xx94=630.8 gm = 0.631 kg`
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Comprehension # 1 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 choride (KCI) and potassium sulphate (K_(2)SO_(4)) . Potash production is often reported as the potassium oxide (K_(2)O) equivalent or the amount of K_(2)O that could be made from a given mineral. KCl cost "Rs" 50 per kg What is the cost of K per mole of the KCl sample?

Comprehension # 1 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 choride (KCI) and potassium sulphate (K_(2)SO_(4)) . Potash production is often reported as the potassium oxide (K_(2)O) equivalent or the amount of K_(2)O that could be made from a given mineral. KCI cost Rs 50 per kg For what price must K_(2)SO_(4) be sold in order to supply the same amount of potassium as in KCI ?

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