Exploring Solubility Concepts in an Online Lab

The video tutorial focuses on graphing solubility data collected from a virtual lab. It begins with verifying the accuracy of the data, followed by calculating the differences in solubility at various temperatures. The instructor then guides students through color coding the data for visual clarity during graphing. The tutorial includes step-by-step instructions for graphing solubility data for NH4Cl, Ba(OH)2, and CuSO4, emphasizing the use of line graphs and the importance of independent and dependent variables. Students are encouraged to complete the graphing for KCl and NaNO3 independently and answer related lab questions.

Before graphing the data, what is the first step the teacher emphasizes?

• Calculating the change in solubility

• Choosing the colors for graphing

• Verifying the accuracy of the collected data

• Answering the lab questions

How is the change in solubility from 0 to 100 degrees Celsius calculated?

• By adding the values at 0 and 100 degrees

• By dividing the value at 100 degrees by the value at 0 degrees

• By subtracting the value at 0 degrees from the value at 100 degrees

• By multiplying the values at 0 and 100 degrees

Which color is used to graph NH4Cl data?

• Blue

• Red

• Green

• Black

Which color is not used for graphing the data?

• Yellow

• Green

• Red

• Black

What is the independent variable in the graph?

• Solubility

• Color

• Temperature

• Substance type

At what temperature is the solubility of NH4Cl first graphed?

• 100 degrees Celsius

• 0 degrees Celsius

• 20 degrees Celsius

• 60 degrees Celsius

Which substance showed a solubility of 102 grams at 100 degrees Celsius?

• Ba(OH)2

• NH4Cl

• KCl

• CuSO4

What type of graph is used to represent the solubility data?

• Bar graph

• Histogram

• Pie chart

• Line graph

What should students do after graphing the data?

• Answer specific lab questions

• Graph additional substances

• Color the graph

• Start a new experiment

Which page's questions are students instructed to disregard?

• The back page

• Page 3

• Page 2

• Page 1