How Accurate Are My Chemistry Calculations?

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SUMMARY

This discussion focuses on the accuracy of chemistry calculations, specifically regarding the production of lithium nitride (Li3N) from lithium (Li), the calculation of atoms in carbon, and the identification of antacid compounds. The first question emphasizes the stoichiometric relationship in chemical reactions, where 3 moles of nitrogen (N) are required for every mole of Li3N produced. The second question highlights the need to use Avogadro's number for converting grams of carbon to atoms, specifically using the molar mass of carbon. The third question addresses the basic types of antacids, which include magnesium hydroxide, aluminum hydroxide, and calcium carbonate.

PREREQUISITES
  • Understanding of stoichiometry in chemical reactions
  • Familiarity with Avogadro's number and molar mass calculations
  • Knowledge of basic acid-base chemistry and antacid compounds
  • Ability to balance chemical equations
NEXT STEPS
  • Study stoichiometric calculations in chemical reactions
  • Learn how to use Avogadro's number for converting grams to atoms
  • Research the properties and types of common antacids
  • Practice balancing chemical equations and identifying limiting reactants
USEFUL FOR

Chemistry students, educators, and anyone seeking to improve their understanding of chemical calculations and stoichiometry.

BittersweetLove
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Am I doing these right??

1)How many moles of Li3N will be produced if you begin with 8.5 moles of Li ?

**Do I just find the moles for 3N and add them to the 8.5 moles of Li?**


2)Calculate the number of atoms in 20.5 g Carbon

**I guess I would Multiply Carbon's atoms by 20.5?**


3)What are the three basic types of compounds that are used as antacids?

**I have no idea whatsoever! I've looked everywhere for the answer. Please help!**
 
Physics news on Phys.org
1) write first the equation
2) 12 gr C contains 6.027*10^23 atoms how mutch is this for 20.5 g?
3) antacids is this formic acid?
 
Like mit already said first write the equation, balance it, then determine the limiting reactant.
 

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