All the Tricks and Techniques you need to Master Stoichiometry In Chemistry. Score high in Stoichiometry Theory, Objective and Calculations Questions.
- You should possess basic Chemistry knowledge
- Posses basic mathematical skills
- Understand change of subject formular
Who Is This Video For?
- Students Interested in Chemistry
- People who wish to understand Stoichiometry
- Students Preparing for School Examination
- Candidates preparing for Scholarships
- Jamb, Waec and Neco Candidates
Stoichiometry Simplified With Calculations. Learn and Fall in Love with Stoichiometry.
00:00 - Intro
01:00 - Meaning of Stoichiometry
01:25 - Quantitative And Qualitative Analysis
03:08 - Chemical Equations Explained
06:13 - Stoichiometric Coefficient (Mole Ratio)
07:18 - Stoichiometry Questions Format
11:08 - Law of Conservation of Mass
14:10 - How to Chemical Equations
23:10 - Stoichiometry Questions And Answers
23:47 - Mass of Carbon Present
27:00 - Percentage by Mass of Oxygen
34:15 - Limiting and Excess Reagents Calculations
42:13 - Formulars for Solving Stoichiometry
43:28 - Calculating Number of Molecules
53:27 - Calculating Volume of Resulting Gases
59:30 - More Stoichiometry Calculation Questions
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This Video Covers the Following Topics Among Others…
- Meaning of Stoichiometry
- Quantitative And Qualitative Analysis
- Chemical Equations
- Stoichiometric Coefficient
- Mole Ratio
- Stoichiometry Questions Format
- Law of Conservation of Mass
- How to Chemical Equations
- Stoichiometry Questions And Answers
- Mass of Carbon Present
- Percentage by Mass of Oxygen
- Limiting and Excess Reagents Calculations
- Formulars for Solving Stoichiometry
- Calculating Number of Molecules
- Calculating Volume of Resulting Gases
- More Stoichiometry Calculation Questions
The following are Calculation Questions covered in this video among others….
A. Calculate the volume of 0.1M ammonia which could be obtained by heating 2.7g of ammonium chloride with excess sodium hydroxide and absorbing all the ammonia evolved.
B. 50cm3 of CO is mixed and sparked with 200cm3 of air containing 21% of O2. If all the volumes are measured at S.T.P. Calculate the total volume of the residual gases.
C. Determine the limiting reagent when 10g of hydrogen reacts with 18g of oxygen to form water according to the equation
2H2 + O2 → 2H2O
C. What is the percentage by mass of Oxygen in Al2(SO4)3.2H2O
D. How many grams of H2SO4 are necessary for the preparation of 0.175dm3 of 6.00M H2SO4.
E. Calculate the number of molecules of carbon (IV) oxide produced when 15g of CaCO3 is treated with 200cm3 of 0.2 moldm-3 HCL. The equation for the reaction is
CaCO3 (s) + 2HCL(aq) → CaCl2(aq) + H20(l) + CO2(g)