Question

b) 0.0985 atm c) 3.69 atm d) 37.3 atm e) 5995 atm 15. A closed tank consists of a mixture of 4.00 grams of helium and 160. grams of an unknown monatomic gas. The partial pressure of the unknown gas is four times the partial pressure of helium. Identify the gas. a) Kr b) Tь c) Ar

Answer 1

Crinen 4.00 a Imole of He of He 60 grams o unkuovon monoatonte gas Let moles we know that' Pastia) Pressure et a gas Mo le ractibn et the Partinl Pressur PHe ) of He Mele Praction of He ) Mele fractton o unknoun a Partial Pressure oP unknowngoas unkneon as mixture in (od 4 meles riven masS Atomic Mass od unknown elamant -7 Number of moles 1609 > 40 4 mole The unknoun gas is Argon (Ar) because it has almest Same atomlc mass.