Achemist determines by measurements that 0.0200 moles of iodine solid participate in a chemical reaction. calculate the mass of iodine solid that participates. round your answer to 3 significant digits. $ x 6 ?

The answer is 5.076 g of iodine solid.

Explanation:

The molecular formula of iodine is I₂.

Molecular weight of I₂= molecular mass of I x 2 = 126.904 /mol x 2= 253.808 g/mol

Thus, to calculate the mass of I₂ there is in a mol, we have to multiply the amount of mol of I₂ by its molecular weight as follows:

0.0200 mol I₂ x 253.808 g/mol I₂ = 5.07616 g

The mass rounded to 3 significant digits is 5.076 g

for step 7 table c on the lab "newtons law of action"   the average time it took the car to travel .25 meters   was 1.92 seconds.

the average time it took the car to travel 0.50 meters was 2.61 seconds

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