A chemist currently has 111 grams of Iridium-182. The half-life of Iridium-182 is 16 minutes. The amount of Iridium-182 that would remain 1.1 hours would be Blank 1. Calculate the answer by read surrounding text. grams. (Round your final answer to one decimal place.)

To calculate the remaining amount of Iridium-182 after 1.1 hours, we discover that after roughly 4.1 half-lives, approximately 6.7 grams would remain.

The concept at work here is called half-life, which is a measure of how long it takes for half of a sample of a radioactive substance to decay. To calculate how much Iridium-182 will be left after 1.1 hours, we first need to convert the time period into the same unit as the half-life. So, 1.1 hours is equal to 66 minutes. We then divide this time by the half-life of Iridium (16 minutes) to find the number of half-lives that have passed, which is approximately 4.1. Then we calculate how much of the substance will remain, using the formula: Initial Amount * (1/2) ^ Number of Half-Lives. Plugging in our values, it turns out that approximately 6.7 grams of Iridium-182 would remain after 1.1 hours.

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