Practice question
Question
A mixture of 6 g H₂ and 44 g O₂ is ignited to form H₂O. What is the mass of H₂O produced? (Atomic masses: H = 1, O = 16)
Explanation
Reaction: 2 H₂ + O₂ → 2 H₂O. Moles: H₂ = 6/2 = 3 mol, O₂ = 44/32 = 1.375 mol. 2 mol H₂ need 1 mol O₂; 1.375 mol O₂ limits, reacts with 2.75 mol H₂. 2.75 mol H₂O formed = 2.75 × 18 = 49.5 g.
Related blogs
Guides and insights connected to this topic
Journey Inside the Atom Notes - Atomic Structure, Bohr Model and Electronic Configuration
Explore the fundamentals of atoms, from ancient ideas to Dalton's theory, Bohr's model, and electronic configuration in clear notes.
Periodic Classification of Elements Notes - Dobereiner Triads, Newlands Octaves, Mendeleev and Modern Periodic Table
Explore early attempts to classify elements, covering Dobereiner’s triads, Newlands’ law of octaves and Mendeleev’s table with examples and key details.
Determination of KLa
IntroductionThe volumetric liquid mass transfer coefficient (KLa) is a useful parameter to characterize the bioreactor's capacity for aerati...
Discussion
Comments
Please log in to join the discussion.
Login to commentNo comments yet. Be the first to start the discussion.