The total pressure exerted by a mixture of three gases O_2, N_2 and H_2 O is 742

Question

The total pressure exerted by a mixture of three gases O_2, N_2 and H_2 O is 742 mm Hg. The partial pressures of the nitrogen, and oxygen in the sample are 581 mm Hg and 143 mm Hg respectively. What is the partial pressure of water vapor present in the mixture. A fixed amount of oxygen gas with a volume of 5.00 ml at 1 atm, and 273 k was heated 402 K and the pressure was doubled. What was the new volume of oxygen gas? Fill-in the blank: In the effect, light strikes the surfaces of a metal and electrons are Energy E, of a photon of light is proportional to frequency v, E=hv, the term h is a called In XRF trace analysis, the sample to be examined is first illuminated with No more than two electrons may exist in a given orbital and then only if the opposite The electronic configuration IS^2 2S^2 2P^4 3S^@ for an atom is in the

Explanation / Answer

10.

Ptotal = Po2 + PN2 + PH2O

742 = 581 + 143 + X

X = 18 mmhg

11.

P1V1/T1 = P2V2/T2

(1*5/273) = (2*V2/402)

v2 = 3.68 ml

12. i) photelectriceffect

ii) planksconstant

iii) x-rays

iv) spin

v) exited state

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