Skills Lesson: Proposing Solutions Answers

Students in Mr. Klein’s chemistry class are conducting an experiment to calculate the specific heat of a copper sample. Mr. Klein requires each lab team to repeat the experiment until their percent error is 2% or less. Percent error is calculated using observed values (those students calculate from their lab results) and the true value (the accepted value based on reference). The formula for percent error is: (observed – true) x 100 true If the accepted value for the specific heat of copper is 0.385 J/g°C, which of the following lab teams have an unresolved problem on their hands?

By proposing a solution to a problem, you are increasing the likelihood of achieving the desired outcome.

In the science laboratory setting, scientists often struggle to achieve valid results. A possible solution for this dilemma is to repeat the procedure for several trials.

Many cities in southeast Michigan are struggling with financial problems due to current economic conditions. At the same time, southeast Michigan is having one of the worst winters on record for snowfall amounts and hazardous road conditions. Which of the following unresolved problems would be a direct result of these two factors?

Which of the following is the first step toward proposing solutions effectively?