Question

Carnalite is a double chloride of potassium and magnesium containing 36.86

Answer 1

Answer:

Answer

Let is consider 100g of Carnalite

Wt. of water = 38.86g

∴Wt. of KCl+MgCl

2

=(100−38.86)g=61.14g

Let Wt. of KCl=xgm

∴Wt. of MgCl

2

=(61.14−x)g

KCl+MgCl

2

→AgCl

By POAC

mole of Cl atom before reaction = mole of Cl atom reaction

mole of Cl In KCl + mole of Cl in MgCl

2

= mole of Cl in AgCl

mole of KCl+2× mole of MgCl

2

= mole of AgCl

100×74.5

0.458×x

+2×(61.14−x)100×95×0.458=

143.5

0.71

⇒

74.5

x

+

95

(61.14−x)2

=

143.5×0.458

700

=

65.72

700

calculating x=26.46 %

Explanation:

Hope it helps...