An empirical formula always indicates: A how many of each atom are in a molecule. B the isotope of each element in a compound. C which atoms are attached to which in a molecule. D the geometry of a molecule. E the simplest whole-number ratio of atoms in a compound.
Added by Chloe P.
Step 1
It gives the simplest whole-number ratio of atoms, but not the actual number. For example, the empirical formula for glucose is CH2O, but the actual molecule has 6 carbon atoms, 12 hydrogen atoms, and 6 oxygen atoms. Show more…
Show all steps
Your feedback will help us improve your experience
Nicole Krahulik and 80 other Chemistry 101 educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
What is the molecular formula of each compound? (a) Empirical formula $\mathrm{CH}(\mathscr{M}=78.11 \mathrm{g} / \mathrm{mol})$ (b) Empirical formula $\mathrm{C}_{3} \mathrm{H}_{6} \mathrm{O}_{2}(\mathscr{M}=74.08 \mathrm{g} / \mathrm{mol})$ (c) Empirical formula $\mathrm{HgCl}(\mathscr{M}=472.1 \mathrm{g} / \mathrm{mol})$ (d) Empirical formula $\mathrm{C}_{7} \mathrm{H}_{4} \mathrm{O}_{2}(\mathscr{M}=240.20 \mathrm{g} / \mathrm{mol})$
Empirical formula of a compound is $\mathrm{A}_{2} \mathrm{~B}_{4} .$ If its empirical formula weight is half of its vapour density, determine the molecular formula of the compound. (a) $\mathrm{A}_{4} \mathrm{~B}_{8}$ (b) $\mathrm{A}_{8} \mathrm{~B}_{16}$ (c) $\mathrm{A}_{2} \mathrm{~B}_{4}$ (d) $\mathrm{A}_{3} \mathrm{~B}_{6}$
What is the molecular formula of each compound? (a) Empirical formula $\mathrm{CH}_{2}(M=42.08 \mathrm{g} / \mathrm{mol})$ (b) Empirical formula $\mathrm{NH}_{2}(\mathscr{M}=32.05 \mathrm{g} / \mathrm{mol})$ (c) Empirical formula $\mathrm{NO}_{2}(\mathscr{M}=92.02 \mathrm{g} / \mathrm{mol})$ (d) Empirical formula CHN $(M=135.14 \mathrm{g} / \mathrm{mol})$
Recommended Textbooks
Chemistry: Structure and Properties
Chemistry The Central Science
Chemistry
Transcript
Watch the video solution with this free unlock.
EMAIL
PASSWORD