12.1: Lab Final Review
- Page ID
- 292735
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\(\newcommand{\avec}{\mathbf a}\) \(\newcommand{\bvec}{\mathbf b}\) \(\newcommand{\cvec}{\mathbf c}\) \(\newcommand{\dvec}{\mathbf d}\) \(\newcommand{\dtil}{\widetilde{\mathbf d}}\) \(\newcommand{\evec}{\mathbf e}\) \(\newcommand{\fvec}{\mathbf f}\) \(\newcommand{\nvec}{\mathbf n}\) \(\newcommand{\pvec}{\mathbf p}\) \(\newcommand{\qvec}{\mathbf q}\) \(\newcommand{\svec}{\mathbf s}\) \(\newcommand{\tvec}{\mathbf t}\) \(\newcommand{\uvec}{\mathbf u}\) \(\newcommand{\vvec}{\mathbf v}\) \(\newcommand{\wvec}{\mathbf w}\) \(\newcommand{\xvec}{\mathbf x}\) \(\newcommand{\yvec}{\mathbf y}\) \(\newcommand{\zvec}{\mathbf z}\) \(\newcommand{\rvec}{\mathbf r}\) \(\newcommand{\mvec}{\mathbf m}\) \(\newcommand{\zerovec}{\mathbf 0}\) \(\newcommand{\onevec}{\mathbf 1}\) \(\newcommand{\real}{\mathbb R}\) \(\newcommand{\twovec}[2]{\left[\begin{array}{r}#1 \\ #2 \end{array}\right]}\) \(\newcommand{\ctwovec}[2]{\left[\begin{array}{c}#1 \\ #2 \end{array}\right]}\) \(\newcommand{\threevec}[3]{\left[\begin{array}{r}#1 \\ #2 \\ #3 \end{array}\right]}\) \(\newcommand{\cthreevec}[3]{\left[\begin{array}{c}#1 \\ #2 \\ #3 \end{array}\right]}\) \(\newcommand{\fourvec}[4]{\left[\begin{array}{r}#1 \\ #2 \\ #3 \\ #4 \end{array}\right]}\) \(\newcommand{\cfourvec}[4]{\left[\begin{array}{c}#1 \\ #2 \\ #3 \\ #4 \end{array}\right]}\) \(\newcommand{\fivevec}[5]{\left[\begin{array}{r}#1 \\ #2 \\ #3 \\ #4 \\ #5 \\ \end{array}\right]}\) \(\newcommand{\cfivevec}[5]{\left[\begin{array}{c}#1 \\ #2 \\ #3 \\ #4 \\ #5 \\ \end{array}\right]}\) \(\newcommand{\mattwo}[4]{\left[\begin{array}{rr}#1 \amp #2 \\ #3 \amp #4 \\ \end{array}\right]}\) \(\newcommand{\laspan}[1]{\text{Span}\{#1\}}\) \(\newcommand{\bcal}{\cal B}\) \(\newcommand{\ccal}{\cal C}\) \(\newcommand{\scal}{\cal S}\) \(\newcommand{\wcal}{\cal W}\) \(\newcommand{\ecal}{\cal E}\) \(\newcommand{\coords}[2]{\left\{#1\right\}_{#2}}\) \(\newcommand{\gray}[1]{\color{gray}{#1}}\) \(\newcommand{\lgray}[1]{\color{lightgray}{#1}}\) \(\newcommand{\rank}{\operatorname{rank}}\) \(\newcommand{\row}{\text{Row}}\) \(\newcommand{\col}{\text{Col}}\) \(\renewcommand{\row}{\text{Row}}\) \(\newcommand{\nul}{\text{Nul}}\) \(\newcommand{\var}{\text{Var}}\) \(\newcommand{\corr}{\text{corr}}\) \(\newcommand{\len}[1]{\left|#1\right|}\) \(\newcommand{\bbar}{\overline{\bvec}}\) \(\newcommand{\bhat}{\widehat{\bvec}}\) \(\newcommand{\bperp}{\bvec^\perp}\) \(\newcommand{\xhat}{\widehat{\xvec}}\) \(\newcommand{\vhat}{\widehat{\vvec}}\) \(\newcommand{\uhat}{\widehat{\uvec}}\) \(\newcommand{\what}{\widehat{\wvec}}\) \(\newcommand{\Sighat}{\widehat{\Sigma}}\) \(\newcommand{\lt}{<}\) \(\newcommand{\gt}{>}\) \(\newcommand{\amp}{&}\) \(\definecolor{fillinmathshade}{gray}{0.9}\)To prepare for the lab final evaluate the following concepts. Make sure you understand and can work problems related to each:
Safety and General Lab Practices:
- Explain general laboratory practices related to safety, container labeling, chemical disposal and instrument operation.
Dimensional Analysis Lab:
- Define and memorize the conversion factors between base units and units containing (centi, milli, micro, and kilo) prefixes
- Calculate a problem similar to any of the post-lab questions
- Report answers in scientific notation.
- Report answers to the correct number of significant figures.
Density of Sucrose Solution Lab:
- Define and calculate percent error.
- Answer questions similar to prelab questions 3-4.
- Determine how specific lab errors could contribute to the density calculation.
- Calculate the density of a solution.
- Use the density of a solution to determine the grams of solute present in a solution.
Percent Composition Lab:
- Define and calculate percent composition of an element in a compound..
- Answer questions similar to prelab question 3, postlab question 1,2 or 4.
- Use data to determine the mol ratio of metal to H2.
- Use lab data to calculate molar mass of an unknown metal.
Reactions of Calcium Lab:
- Use reaction stoichiometry to calculate quantities in chemical reactions.
- Balance chemical equations.
- Answer questions similar to pre-lab 1-2, post-lab 1-2.
Limiting Reactant Lab:
- Discuss the concepts of limiting reactant, theoretical yield and percent yield.
- Calculate theorietical yield.
- Determine the limiting reactant.
- Calculate percent yield.
- Perform calculations similar to those in pre-lab question 1, post-lab question 2, and the “beaker” calculations.
Reactions and Solubility Lab:
- Classify chemical reactions by type.
- Write the net ionic equation for a reaction.
- Discuss the evidense that a chemical reaction has taken place.
- Predict the precipitate in a chemical reaction.
- Be able to answer questions similar to pre-lab question 2-3, post-lab questions, and classification similar to the data section.
Titration of a Carbonated Beverage Lab:
- Calculate the concentration of an NaOH solution given the volume used to titrate a known mass of KHP.
- Calculate the concentration of citric acid in a soda given the volume and molarity of a NaOH solution.
- Answer questions similar to pre-lab 2-3, post-lab 1-3.
Molar Mass of a Volatile Liquid Lab:
- Calculate molar mass using the ideal gas law and laboratory data.
- Answer questions similar to pre-lab question 2 or post-lab question 1.
Calorimetry Lab:
- Determine whether a reaction is endothermic or exothermic.
- Determine the best ionic compound of to use in a heat pack for treating frostbite based on your experimental results.
- Calculate the average heat capacity of your calorimeter.
- Calculate the specific heat of a metal.
- Answer questions similar to pre-lab 3-4, post-lab 5-6.
Hess’ Law Lab:
- Use Hess’ Law to calculate the enthalpy for a reaction.
Molecular Geometry Lab:
- Determine the shape of a molecule using the VSEPR.
- Draw the Lewis structures of a molecule including bond angles and formal charges.
- If given any molecule, be able to fill in the chart in your data sheets for that molecule.
- Answer questions similar to pre-lab 1-5, post-lab 1-2.
Contributors and Attributions
- College Chemistry 1. Authored by: Jessica Garber-Morales. Provided by: Tidewater Community College. Located at: http://www.tcc.edu/. License: CC BY: Attribution