Search for tag: "chem 101"

Double Replacement

Double displacement reaction practice problem. Question: How do we work with double displacement reactions?

From  tutoringcenter on September 11th, 2014 0 likes 0 plays 0  

Calculate Molecular Formula

How to find the molecular mass given grams Questions: How do you find molecular mass?

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Redox Chemistry

How to know if the reaction is redox or not. Question: Is the reaction redox?

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Conversion Factors

FInding each element's mass in a compound given its mass in grams. Conversions. Questions: How do we find the mass of one part of a compound?

From  tutoringcenter on September 11th, 2014 0 likes 0 plays 0  

pH and pOH Part 2

Finding pH. Question: When does pH increase or decrease?

From  tutoringcenter on September 11th, 2014 0 likes 5 plays 0  

Solving for a Reactant Using a Chemical Equation

How to find mass, using the molar map. Question: What mass of water is produced?

From  tutoringcenter on September 11th, 2014 0 likes 1,316 plays 0  

Writing & Balancing Chemical Equations from their Description

How to write and balance chemical equations.

From  tutoringcenter on September 11th, 2014 0 likes 44 plays 0  

How to calculate pH

How to calculate pH. Question: Aleks problem

From  tutoringcenter on September 11th, 2014 0 likes 13 plays 0  

Catalyzed Reaction

Catalysts and exothermic reactions. What catalysts do. Equilibrium constants. Question: What does a catalyst do in a reaction?

From  tutoringcenter on September 11th, 2014 0 likes 6 plays 0  

Exo and Endo Reaction

Energy level in both reactions. How to work with both reactions. Question: What is an exothermic/endothermic reaction?

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Dilution Part 2

DIlution problem, finding molarity/volume. Question: How do you find the unkown molarity/volume?

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Dilution Part 1

DIlution problem, finding molarity/volume. Question: How do you find the unkown molarity/volume?

From  tutoringcenter on September 11th, 2014 0 likes 0 plays 0  

Molarity Part 2

Finding molarity by converting units. Question: How do we find molarity?

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Molarity Part 1

Finding molarity given that it is equal to moles/L. Question: What is molarity equal to?

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Temperature Conversion

Temperature conversion. Question: How to convert Celcius to Fahrenheit

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Significant Figures

This video discusses significant figures.

From  tutoringcenter on September 11th, 2014 0 likes 0 plays 0  

Q=mc(delta)T Part II

How to calculate the heat capacity and also heat of fusion. Question: Find the heat required to boil 100g of etanol.

From  tutoringcenter on September 11th, 2014 0 likes 23 plays 0  

Heat Capacity and Energy Calculation

Practice problems with given and missing variables of the equation. Question: What is the forrmula and what does Q, M, C,and delta T mean?

From  tutoringcenter on September 11th, 2014 0 likes 0 plays 0  

Protons, Neutrons, and Electrons

Atoms composition. Question: What is the atom composition?

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Scientific Notation

Scientific notation calculations.

From  tutoringcenter on September 11th, 2014 0 likes 0 plays 0  

Q=mc(delta)T Part III

How to calculate the heat of fusion and vaporization of benzene. Question: whta is the heat required to melt 46.5g of solid benzene?

From  tutoringcenter on September 11th, 2014 0 likes 12 plays 0  

Periodic Table (Groups, Periods, Symbols)

Atomic number, protons, columns, rows. Question: What do we see when we look at an element on the table?

From  tutoringcenter on September 11th, 2014 0 likes 42 plays 0  

Periodic Trends

How size decreases in the table. How energy increases in the table. Question: How do size and energy change throughout the table?

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Physical and Chemical Properties

This video discusses physical and chemical properties.

From  tutoringcenter on September 11th, 2014 0 likes 0 plays 0  

Molecules Geometry

Polar molecules. Lewis structure. Finding the shape of molecules. Question: How to determine polarity of a molecule?

From  tutoringcenter on September 11th, 2014 0 likes 0 plays 0  

Ideal Gas Law

Ideal gas law formula. Finding T. Question: What is the Ideal Gas Law?

From  tutoringcenter on September 11th, 2014 0 likes 0 plays 0  

Classifying Chemical Reactions

Precipitations. Acid base chemistry. Gas evolution reactions. Questions: How do we classify chemical reactions?

From  tutoringcenter on September 11th, 2014 0 likes 15 plays 0  

Gay-Lussac's Law (Example Problem)

Using Gay Lussac's Law. Given temp 1, pressure 1 and pressure 2. Question: What is the required temp to change the pressure to standard pressure given the information?

From  tutoringcenter on September 11th, 2014 0 likes 251 plays 0  

Charles' Law (Example Problem)

Calculating volume 2 with Charle's Law. Questions: How do you use Charle's Law?

From  tutoringcenter on September 11th, 2014 0 likes 0 plays 0  

Counting Atoms by the Gram

How the molar map works, converting grams to moles, using avogadro's number to atoms. Questions: How do we figure out the amount of particles in grams?

From  tutoringcenter on September 11th, 2014 0 likes 0 plays 0