Which practices reflect the safe, ethical handling of chemicals and waste in a laboratory? Before working, familiarizing yourself with safety features of your laboratory Cleaning up spills immediately to prevent accidental contact by the next person who comes along Recycling of chemicals rather than disposing of waste Not eating or drinking in the lab

Find the mean of the following data: (report 2 decimal places) , , , , , ,  

__________ chemical analysis is the measurement of how much of a chemical substance is present. __________ chemical analysis is the determination of what is present in a sample.

Calculate the normality of NaOH solution formed by dissolving g NaOH to make mL solution.

A(n) __________ sample is a sample in which the chemical composition differs from place to place.

For the following set of replicate measurements calculate the: (Report to 2 decimal places) Relative Standard Deviation , , , , ,

A _____________ is a reagent that protects a component of the analyte from reaction with EDTA.

Sulfide in a water sample is titrated with electrolytically generated Fe2+. If a 10.00-mL aliquot of the water sample requires a current of 0.750 A for 5.40 min to reach the end point, what is the molar concentration of sulfide in the water sample? (Report to 3 decimal places)

Which of the following statement(s) is/are TRUE regarding the properties of the limiting reagent in a chemical reaction?

A current of 0.500 A flows through a cell containing Fe2+ for 10.0 min. Calculate the maximum number of moles of Fe that can be removed from solution. Assume the current is constant over time.