1. Use the graph paper supplied to you to create a graph of the titration curve of 20 mL sudsy […]
Category: Chemistry
What is the color of the solution after the equivalence point is reached at a pH of 8? Lab 8: Pre-Lab Questions
1. What is the difference between an end point and an equivalence point?2. Table 1 lists several indicators that are […]
In this experiment, the temperature of the gas evolved is equal to the temperature of the water in the beaker, which ideally should be the same as the air temperature. Explain how the volume of oxygen evolved would change if you used ice water instead of room temperature water. How would it change if you used boiling water?
1. What would happen if you added more than 5 mL of yeast to the H2O2?2. What would happen if […]
What is the purpose of continuously stirring the vegetable oil and the NaOH?
1. What is the purpose of continuously stirring the vegetable oil and the NaOH?2. What would happen if you did […]
How could you verify that you produced carbon dioxide in your combustion reaction?
1. How could you verify that you produced carbon dioxide in your combustion reaction?2. What indication did you have that […]
Balance the following equations and determine which type of reaction is occurring.
Balance the following equations and determine which type of reaction is occurring.1. (NH4)2CO3 (s) →NH3+H2O+CO2 (g)2. Zn (s) +H3C6H5O7 (aq) […]
Chromatography has many applications. Research one application of chromatography and explain how it is used and what characteristic is utilized for the separation of the analyte(s).
Post-Lab Questions1. Which solvent provided the best separation?2. Explain which characteristics of the solvent were used to effectively separate the […]
Why would it be important to know which food dyes are in food?
1. Rank the following solutions from least polar to most polar.Rank on a scale of 1-4: 1 being the least […]
Calculate the thermal energy in the burnt marshmallow based on the following information:
Table 4: Calorie TestingInitial FinalMass of MarshmallowTemperature1. Calculate the thermal energy in the burnt marshmallow based on the following information:2. […]
Using the specific heat of water (4.184 J/g °C), calculate how much heat flowed into the water?
1. Why is ΔTmetal < 0?2. Why is ΔTwater > 0 ?3. A metal sample weighing 43.5 g and at […]
