Answer:
Average atomic mass of element X is 56.19 amu
Explanation:
Given:
Four isotopes of X:
5.845% of X has a mass of 53.93961 amu.
91.75% of X has a mass of 55.93494 amu.
2.123% of X has a mass of 56.93539 amu.
0.2820% of X has a mass of 57.93328 amu.
To find: average atomic mass of element X
Solution:
Isotopes are variants of a particular chemical element such that they have the same number of protons but different number of neutrons.
Average atomic mass of element X =
So, the average atomic mass of element X is 56.19 amu.
Answer:
Explanation:
<u>Given Data:</u>
Mole = n = 3.38 mol
Temp = t = 269 K
Pressure = 1.19 atm
Gas constant = R = 0.08206 L atm K⁻¹ mol⁻¹
<u>Required:</u>
Volume = v = ?
<u>Formula:</u>
Pv = nRT
<u>Solution:</u>
Rearranging formula
It would be B because Gas is a state of matter that has no fixed shape and no fixed volume.
CBCvbcdggdhhsgjjgcgbbfhggfddfghjj