We are given
n = 87.3 moles He
no = 52.0 moles
Po = 9.63 atm
Using the relationship between Pressure and number of moles
Po/no = P/n
Substituting
9.63 atm / 52.0 mol = P / 87.3 mol
Solve for P<span />
Explanation:
Round 87.073 meters to 3 significant figures. write your answer in scientific notation. step 1: 87.073 rounds to step 2: write scientific notation : meters...
Solution: Change in state of matter is a physical change because of the physical condition and appearance changes but not the chemical composition.
The half-life of Plutonium−239, t1/2 is 2.41 × 10⁴<span> yrs
time taken to reach tolerable level = seven half-lives
= 7 x t1/2
= 7 x </span>2.41 × 10⁴ yrs
= 168700 yrs
= 1.687 x 10⁵ yrs
Hence, the period of time that <span>Plutonium-239 must be stored is </span>1.687 x 10⁵ years.
Answer:
D. The time of day
Explanation:
The independent variable is the variable the experimenter changes or controls and is assumed to have a direct effect on the dependent variable
