A mixture of hydrogen, oxygen and nitrogen gases exerts a total pressure of 278kPa. If the partial pressure of the oxygen is 83.98 kPa and the hydrogen partial pressure is 88.23kPa, what would be the partial pressure exerted by the nitrogen? Record your answer with two decimal places.

yes it is balanced

i think that the answer is c

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