Stoichiometry + Solution Concentration

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Last updated 7:43 AM on 5/14/26
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7 Terms

1
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molarity formula

c = n/V
concentration (mol L-1) = number of moles (mol) / volume (L)

2
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dilution of solutions formula

c1 x V1 = c2 x V2

3
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Avogadro’s number, NA

6.022 × 1023

4
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mole and number of particles formula

n = N / NA = number of particles/number of particles in a mole

5
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moles and mass formula

n = m/M = mass/molar mass

6
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Calculation of empirical formula

  1. determine ratio by finding number of moles (dividing percents/masses by molar mass)

  2. Divide the ratio by the smallest number

  3. Round off

7
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Calculation of limiting reagent

  1. write chemical equation

  2. determine mole ratio

  3. convert given masses to moles

  4. use moles in ratio and determine the reagent