Home › CBSE Class 11 › Chemistry › Some Basic Concepts of Chemistry › In the reaction $2H_2 + O_2 \to 2H_2O$, $4$ mole…
In the reaction $2H_2 + O_2 \to 2H_2O$, $4$ moles of $H_2$ are mixed with $1$ mole of $O_2$. The mass of water formed is:
A$72$ g, taking all the hydrogen as the limit here
B$36$ g, the simple half of the hydrogen total here
C$36$ g, since O$_2$ limits to $2$ mol of water at $18$ g/mol
D$18$ g, just one mole of water, ignoring stoichiometry
Answer & Solution
Correct answer: C. $36$ g, since O$_2$ limits to $2$ mol of water at $18$ g/mol
O$_2$ is limiting: 1 mol O$_2$ $\to$ 2 mol H$_2$O = 36 g.
Related questions
Uncertainty in an experimental value is indicated by mentioning the number of:In multiplication, the result carries no more significant figures than the measurement witIn numbers written in scientific notation, which digits are significant?How many significant figures does 0.200 g have?How many significant figures does 0.0052 have?Significant figures are digits known with certainty plus one that is:Carbon 12 is assigned a mass of exactly twelve atomic mass:In heterogeneous mixtures, the composition throughout is: