Question

in element with a mass of 430 g decays by 27.4 percentage per minute how much of the element is remaining after 19 minutes to the nearest 10th of a gram

Answer 1

To determine how much of an element undergoing a decay of 27.4% per minute is remaining after 19 minutes, you can use the exponential decay formula
`A = P(1 - r)^t`, where A is the amount remaining, P is the initial amount (430 g), r is the decay rate (0.274), and t is the time (19 minutes). Calculate and then round to the nearest tenth of a gram.

To calculate the amount of the element remaining after 19 minutes with a decay percentage of 27.4% per minute, you can use the formula for exponential decay:

`A = P(1 - r)^t`

Where:

• A is the amount remaining after time t
• P is the initial amount (430 g)
• r is the decay rate (0.274)
• t is the time (19 minutes)

Plugging in the values, we have:

A = 430g *
`(1 - 0.274)^19`

After calculating, we'll round off the number to the nearest tenth of a gram to find out how much of the element is remaining.