Hydrogen cyanide (HCN) is an important industrial chemical. It is produced from methane (CH4), ammonia, and molecular oxygen. Th
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<u>Answer:</u> The mass of rust that can be removed is 1.597 grams
<u>Explanation:</u>
To calculate the number of moles for given molarity, we use the equation:
.....(1)
Molarity of oxalic acid solution = 0.1255 M
Volume of solution = = 600 mL = 0.600 L (Conversion factor: 1 L = 1000 mL)
Putting values in equation 1, we get:
For the given chemical reaction:
By Stoichiometry of the reaction:
6 moles of oxalic acid reacts with 1 mole of ferric oxide (rust)
So, 0.06 moles of oxalic acid will react with = of ferric oxide (rust)
To calculate the mass of rust for given number of moles, we use the equation:
Molar mass of rust (ferric oxide) = 159.7 g/mol
Moles of rust = 0.01 moles
Putting values in above equation, we get:
Hence, the mass of rust that can be removed is 1.597 grams