What is the pressure of 5.0 mol nitrogen (n2) gas in a 2.0 l container at 268
k?
(the universal gas constant is 0.0821 l•atm/mol. k.)
o a. 220 atm
ob. 8.8 atm
o c. 55 atm
o d. 0.018 atm
submit

percent abundance for cu-63 can be shown as:

63 x + 65 (1-x) = 62.9296

65 - 62.9296 = 2 x

x = 1.035

thus, percent abundance for cu-63 is 1.035

percent abundance for cu-65 can be shown as:

63 x + 65 (1-x) = 64.9278

65 - 64.9278 = 2 x

x = 0.0361

thus, percent abundance for cu-63 is 0.0361

the mass spectrum of cu-63 showing the intense peak as, this isotope is found in nature more abundantly around 92.38 % in comparison to cu-65 which is found 62.58 % naturally