A rigid container holds a mixture of carbon dioxide, nitrogen, and oxygen gases at a total pressure of 957 mmHg. The pressure exerted by the carbon dioxide gas
is 340 mmHg and the pressure exerted by the oxygen is 124 mmHg. What is the
pressure exerted by the nitrogen gas? *
464.00 mmHg
493.00 mmHg
1421.00 mmHg

it is the most commonly accepted one

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