If 200cm³ of a gas at s.t.p. has a mass of 0.268g. What is its molar mass? (Molar volume of a gas at s.t.p. = 22.4 dm³) by Sunday | Aug 25 | Chemistry WAEC | 0 comments A. 300g B. 200g C. 150g D. 30g E. 15g Correct Answer: Option D – 30g Users Also Read These:What is the solubility of a salt if 0.4g of it is…What volume of oxygen is produced from the…The volume of 2.5 moles of oxygen at s.t.p is?…A gas has a volume of 546cm³ at O°C. What is the…A fixed mass of gas has a volume of 92cm³ at 3°C.…