0.75 moles of NH3 molecules contain how many moles of hydrogen?

Click For Summary
SUMMARY

0.75 moles of NH3 (ammonia) contain 2.25 moles of hydrogen. The stoichiometric ratio of nitrogen to hydrogen in NH3 is 1:3, meaning for every mole of nitrogen, there are three moles of hydrogen. Given that 0.75 moles of NH3 corresponds to 0.75 moles of nitrogen, the calculation for hydrogen is straightforward: 0.75 moles of nitrogen multiplied by 3 results in 2.25 moles of hydrogen.

PREREQUISITES
  • Understanding of stoichiometry
  • Knowledge of chemical formulas and molecular composition
  • Basic algebra for ratio calculations
  • Familiarity with moles and Avogadro's number
NEXT STEPS
  • Study stoichiometric calculations in chemical reactions
  • Learn about molecular composition and chemical formulas
  • Explore the concept of moles and Avogadro's number
  • Practice ratio and proportion problems in chemistry
USEFUL FOR

Chemistry students, educators, and anyone looking to strengthen their understanding of stoichiometry and molecular relationships in chemical compounds.

LaNell
Messages
1
Reaction score
0

Homework Statement




0.75 moles of NH3 molecules contain how many moles of hydrogen?

Homework Equations





The Attempt at a Solution

 
Physics news on Phys.org


You can use ratios, so in NH3 you have:

number of Nitrogen atoms : number of Hydrogen atoms = n(N) : n(H) = 1 : 3

Therefore, for each mole of Nitrogen atoms you have 3 moles of Hydrogen atoms

As such, when you have 0.75 mol of NH3 molecules this means there is 0.75 mol of Nitrogen atoms (ie: n(N) = 0.75), and therefore the n(H) = 3 * 0.75 = 2.25mol.
 

Similar threads

Chemistry How to find moles of O in CO molecule?
  • · Replies 21 ·
Replies
21
Views
3K
Chemistry Calculate the number of molecules of O2 when given the number of moles
  • · Replies 7 ·
Replies
7
Views
4K
Chemistry Hydrogen Atom and Mole Calculation: How Many Hydrogen Atoms in One Mole?
  • · Replies 7 ·
Replies
7
Views
2K
Ammonia and Oxygen Reaction: How Many Moles of NO?
  • · Replies 3 ·
Replies
3
Views
10K
Chemistry Why does the solution divide by two in Mole Stoichiometry?
  • · Replies 1 ·
Replies
1
Views
3K
Percent yield/excess reactant problem
  • · Replies 1 ·
Replies
1
Views
2K
Chemistry How many moles of electrons are in 1mL of water?
  • · Replies 2 ·
Replies
2
Views
3K
Chemistry Moles of NaOH to Create Buffer Solution pH=6 in 0.42M Ethanoic Acid
  • · Replies 3 ·
Replies
3
Views
3K
Chemistry Solving the Mystery of 76 moles of P4O10
  • · Replies 2 ·
Replies
2
Views
2K
Calculate pH change of a basic buffer
  • · Replies 2 ·
Replies
2
Views
2K