問題詳情

69. At 27℃, an ideal gas with a mass of 0.4 g in 100 mL has a pressure of 0.3 atm. What is the molecular weight of this gas molecule? (R = 0.082 atm·L/mol·K)
(A) 328
(B) 246
(C) 133
(D) 120
(E) 30

參考答案

答案：A

統計：A:1,B:0,C:0,D:0,E:0

難度：計算中