Fe2+ in ferrous oxalate is oxidised to Fe3+ by acidified K2Cr2O7. That is, each mole of K2Cr2O7 oxidises 2 moles of ferrous sulphate. Hence, to oxidize 2 moles of FeSO4, only 1 mole of K2Cr2O7 is required. Hope this helps you.
How many mole of K2Cr2O7 is required to oxidise one mole of ferrous sulphate in acidic medium?
Therefore, 5 moles of ferrous sulphate are oxidized by 1 mole of potassium permanganate in acidic medium.
How many moles are in K2Cr2O7?
1 grams K2Cr2O7 is equal to 0.0033992262001478 mole.
How many number of moles of K2Cr2O7 are reduced by 1 mole?
-It is clear from the balanced net equation that one mole Cr2O72− is reduced by three moles Sn2+ .
How many moles of acidified K2Cr2O7 is required?
So, I concluded that 2 moles of K2Cr2O7 are required to liberate 6 moles of I2.
How many moles of oxalic acid are oxidised by 1 mole of KMnO4 in acidic medium?
0.4 moles of acidified KMnO4 is required to oxidize 1 mole of oxalic acid.
How many moles of KMnO4 are required to oxidise ferrous sulphate?
5 moles of ferrous sulphate will get oxidized to ferric sulphate with 1 mole of KMnO4 as there is acidic medium.
How many grams is K2Cr2O7?
The SI base unit for amount of substance is the mole. 1 mole is equal to 1 moles K2Cr2O7, or 294.1846 grams.
How many moles of K2Cr2O7 are in acidic medium?
Hence, the number of moles of K2Cr2O7 that will be needed to react one mole of H2S in acidic medium is 31.
When SO2 is passed in acidified K2Cr2O7 what is the reaction?
When sulfur dioxide (SO2) is passed through acidified (in the presence of sulphuric acid i.e., H2SO4) potassium dichromate solution (K2Cr2O7), potassium sulfate (K2SO4) and chromium sulphate (Cr2(SO4)3) are formed along with water molecules. The balanced chemical reaction of this process is shown below.
How many moles iodine are liberated when 1 mole of potassium dichromate reacts with potassium iodide in acidic medium?
Hence, 3 moles of iodine will be liberated.
How many moles of KMnO4 are reduced?
Thus, the number of moles of KMnO4 reduced by 1 mol of KI in the alkaline medium is 2. So, the correct answer is “Option B”.
What happens when KI solution is added to acidified K _( 2 cr _( 2 o _( 7 solution?
As given in the question, when one mole of acidified K2Cr2O7 reacts in the presence of excess of KI, it will give some moles of I2. This is only possible because K2Cr2O7 is an oxidizing agent. It will oxidize I− to I2 immediately and will get reduced itself.
How many atoms of oxygen are present in 2.0 moles of water?
Two water molecules contain 4 hydrogen atoms and 2 oxygen atoms. A mole of water molecules contains 2 moles of hydrogen atoms and 1 mole of oxygen atoms.