Converting between quantities To convert from a given quantity of one reactant or product to the quantity of another reactant or product • First, convert the given quantity to moles. Use molar masses to convert masses to moles, and use Avogadro's number (6.02 x 10 particles per mole) to convert number of particles to moles. • Next, convert moles of the given reactant or product to moles of the desired reactant or product using the coefficients of the balanced chemical equation. For example, in the chemical equation2H2 + O2-2H20the coefficients tell us that 2 mol of H2 reacts with 1 mol of Oz to produce 2 mol of H20. • Finally, convert moles of the desired reactant or product back to the desired units. Again, use molar masses to convert from moles to masses, and use Avogadro's number to convert from moles to number of particles. Reaction of hydrogen and nitrogen to form ammonia Hydrogen gas, H2, reacts with nitrogen gas, N2, to form ammonia gas, NH3, according to the equation 3H2(g) + N2(g)2NH3(g) NOTE: Throughout this tutorial use molar masses expressed to five significant figures. Part A How many moles of NH3 can be produced from 12.0 mol of H2 and excess N2? Express your answer numerically in moles. • View Available Hint(s) Temglates Symbols undo redo Teset keyboard shortcuts Help mol NH3
Converting between quantities To convert from a given quantity of one reactant or product to the quantity of another reactant or product • First, convert the given quantity to moles. Use molar masses to convert masses to moles, and use Avogadro's number (6.02 x 10 particles per mole) to convert number of particles to moles. • Next, convert moles of the given reactant or product to moles of the desired reactant or product using the coefficients of the balanced chemical equation. For example, in the chemical equation2H2 + O2-2H20the coefficients tell us that 2 mol of H2 reacts with 1 mol of Oz to produce 2 mol of H20. • Finally, convert moles of the desired reactant or product back to the desired units. Again, use molar masses to convert from moles to masses, and use Avogadro's number to convert from moles to number of particles. Reaction of hydrogen and nitrogen to form ammonia Hydrogen gas, H2, reacts with nitrogen gas, N2, to form ammonia gas, NH3, according to the equation 3H2(g) + N2(g)2NH3(g) NOTE: Throughout this tutorial use molar masses expressed to five significant figures. Part A How many moles of NH3 can be produced from 12.0 mol of H2 and excess N2? Express your answer numerically in moles. • View Available Hint(s) Temglates Symbols undo redo Teset keyboard shortcuts Help mol NH3
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Transcribed Image Text:Converting between quantities
To convert from a given quantity of one reactant or product to the quantity of another reactant or product
• First, convert the given quantity to moles. Use molar masses to convert masses to moles, and use Avogadro's number (6.02 x 10 particles per mole)
to convert number of particles to moles.
• Next, convert moles of the given reactant or product to moles of the desired reactant or product using the coefficients of the balanced chemical equation.
For example, in the chemical equation2H2 + O2-2H20the coefficients tell us that 2 mol of H2 reacts with 1 mol of Oz to produce 2 mol of H20.
• Finally, convert moles of the desired reactant or product back to the desired units. Again, use molar masses to convert from moles to masses, and use
Avogadro's number to convert from moles to number of particles.
Reaction of hydrogen and nitrogen to form ammonia
Hydrogen gas, H2, reacts with nitrogen gas, N2, to form ammonia gas, NH3, according to the equation
3H2(g) + N2(g)2NH3(g)
NOTE: Throughout this tutorial use molar masses expressed to five significant figures.
Part A
How many moles of NH3 can be produced from 12.0 mol of H2 and excess N2?
Express your answer numerically in moles.
• View Available Hint(s)
Temglates Symbols undo redo Teset keyboard shortcuts Help
mol NH3
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