`0.804 g` sample of iron ore was dissolved in acid. Iron was oxidised to `+2` state and it requires `47.2 mL` of `0.112N KMnO_(4)` solution for titration, Calculate `%` of `Fe` and `Fe_(3)O_(4)` in ore.

0.804 g sample of iron ore was dissolved in acid. Iron was oxidised to +2 state and it requires 47.2 mL of 0.112N KMnO_(4) solution for titration, Calculate % of Fe of Fe_(3)O_(4) in ore.

0.804 g sample of iron was dissolved in acid , Iron was reduced to +2 state and it required 47.2 mL of 0.112 N KMnO_4 solution for titration. Calculate the percentage of iron and Fe_3O_4 in the ore.

0.7 g sample of iron ore was dissolved in acid. Iron was reduced to +2 state and it required 50 " mL of " (M)/(50) KMnO_(4) solution for titration. The percentage of Fe and Fe_(3)O_(4) in the ore is

0.7 g sample of iron ore was dissolved in acid. Iron was reduced to +2 state and it required 50 " mL of " (M)/(50) KMnO_(4) solution for titration. The percentage of Fe and Fe_(3)O_(4) in the ore is

A 0.276 g impure sample of copper ore is dissolved and Cu^(2+) is titrated with KI solution. I_(2) liberated required 40 mL of 0.1 M Na_(2) S_(2) O_(3) solution for titration. What is the % of impurities in the ore ?

A 0.276 g impure sample of copper ore is dissolved and Cu^(2+) is titrated with KI solution. I_(2) liberated required 40 mL of 0.1 M Na_(2) S_(2) O_(3) solution for titration. What is the % of impurities in the ore ?

A 0.276 g impure sample of copper ore is dissolved and Cu^(2+) is titrated with KI solution. I_(2) liberated required 40 mL of 0.1 M Na_(2) S_(2) O_(3) solution for titration. What is the % of impurities in the ore ?

A 0.46 g sample of As_(2)O_(3) required 25.0 " mL of " KMnO_(4) solution for its titration. The molarity of KMnO_(4) solution is

A 1.10 g sample of copper ore is dissolved and the Cu^(2+) of is treated with excess KI . The liberated I_(2) requires 12.12 mL of 0.10M Na_(2)S_(2)O_(3) solution for titration. Find the % copper by mass in ore.

A 2.76g impure sample of copper ore is dissolved and Cu^(2+) is titrated with KI solution. l_2 liberated required 40 mLof 0.1MNa_2S_2O_3 solution for titration. What is the % impurity present in the ore ?