The half-life of krypton-91 (91kr) is 10 s. at time t = 0 a heavy canister contains 7 g of this radioactive gas. (a) find a function m(t) = m02−t/h that models the amount of 91kr remaining in the canister after t seconds

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Explanation:

the ideal gas law equation is as follows

pv = nrt

where p - pressure

v - volume

n - number of moles

r - universal gas constant

t - temperature

so if the pressure, volume and temperature are already known

we are left with n and r

since r is the universal gas constant that has a known fixed value then r too is known

so we are left with 'n'

once we know temperature volume and pressure

we can find the number of moles of gas present using the ideal gas law equation

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