One question per day; those who answer correctly receive 6 wealth points, while participants receive 2 wealth points； Question 295
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Fill-in-the-blank: The sources of error in the iodometric method are, first, ( ), and second, iodine is prone to oxidation by O2 in the air in ( ) solutions. Answer: Iodine is volatile; acidic
The sources of error in the iodometry method are, first, (iodine’s tendency to volatilize), and second, the fact that iodine in solution is prone to oxidation by O2 in the air under acidic conditions.
The sources of error in the iodometry method are, first, the volatility of iodine, and second, the tendency of iodine in acidic solutions to be oxidized by O2 in the air.
The sources of error in the iodometric method are, first, the volatility of iodine, and second, the tendency of iodine in solution to be oxidized by O2 in the air under acidic conditions.
Volatile, prone to loss; acidic
First, iodine is volatile; second, iodine is easily oxidized by oxygen in the air under acidic conditions
First is the volatilization of iodine; second, it is easily oxidized in acidic solutions
The sources of error in the iodometry method are, first, the volatilization of iodine, and second, the tendency of iodine in the iodine standard solution and the iodine being titrated to be oxidized by O2 in the air.
Iodine is volatile； Acidic! ! ! ! ! ! ! ! ! ! ! ! ! ! ! !
The sources of error in the iodometry method are, first, (easy volatility), and second, in (acidic) solutions, iodine is easily oxidized by O2 in the air.
The sources of error in the iodometric method are, first, the volatility of iodine, and second, the tendency of iodine in acidic solutions to be oxidized by O2 in the air.