Question

diatomic iodine has many biological uses. it reacts with starch, making it a useful indicator htat produces a deep purple color in the presence of starch. iodine also has antiseptic properties, and is the crucial (important) component in surgical skin cleaning products. what is the molar mass for diatomic iodine? hint- do you remember what diatomic means? we learned it in topic 1! iodine test for starch 253 g/mol follow the directions above for typing in your answer

Explanation:

Step1: Recall diatomic meaning

Diatomic iodine has formula $I_2$.

Step2: Find atomic mass of iodine

Atomic mass of $I$ is approximately 126.9 g/mol.

Step3: Calculate molar mass of $I_2$

$M = 2\times126.9\ g/mol=253.8\ g/mol\approx253\ g/mol$

Answer:

253 g/mol