K2Cr2O7 is obtained in the following steps- 2FeCrO4-2Na2CO3-O- Fe2O3-2Na2CrO4-2CO2 2Na2CrO4-H2SO4- Na2Cr2O7-H2O-Na2SO4 Na2Cr2O7-2KCl- K2Cr2O7-2NaClTo get 0-25 mol of K2Cr2O7- mol of 50- pure FeCrO4 required is-

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Stoichiometric Calculations

K2Cr2O7 is ob...

Question

$K_{2} C r_{2} O_{7}$ is obtained in the following steps:
$2 F e C r O_{4} + 2 N a_{2} C O_{3} + O \to F e_{2} O_{3} + 2 N a_{2} C r O_{4} + 2 C O_{2}$
$2 N a_{2} C r O_{4} + H_{2} S O_{4} \to N a_{2} C r_{2} O_{7} + H_{2} O + N a_{2} S O_{4}$
$N a_{2} C r_{2} O_{7} + 2 K C l \to K_{2} C r_{2} O_{7} + 2 N a C l$
To get $0.25$ mol of $K_{2} C r_{2} O_{7}$ , mol of $50 %$ pure $F e C r O_{4}$ required is:

1

mol

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0.50

mol

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0.25

mol

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0.125

mol

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