A true Likert question has 5 responses that range from “never” to “all the time.”

Note takers should feel free to interact with participants during the focus group.

QUIZ PROBLEM #8 Situation:  43.8 grams of Cr2O3 and 27.9 grams of Si are combined and they react according to this chemical equation: 2 Cr2O3 (s)  +  3 Si (s)   –>   4 Cr (s)  +  3 SiO2 (s) Molar masses for all substances: Cr2O3 = 152.00 g/mol   |   Si = 28.09 g/mol   |   Cr = 52.00 g/mol   |   SiO2 = 60.09 g/mol   Instructions:  Type your answers to the questions in the textbox below. Label each answer A, B, C, D, E Show all work on your “work” page.  Label which problem it is (#8).   Questions: A.  Which reactant is limiting? B.  Briefly explain in words how you know which one is the limiting reactant based on your calculations.  Be specific. C.  How many grams of SiO2 should be produced? D.  How many grams of Cr2O3 should be left over at the end? E.  How many grams of Si should be left over at the end?  

If a researcher is questioning whether or not they are actually measuring what they think they are measuring, what is the researcher questioning?

QUIZ PROBLEM #2 Instructions: Choose the ONE best answer to the question. There is no need to write anything on your “work” pages.   Question: Some SBr2 is added to a beaker of water and it dissolves.  This compound is a nonelectrolyte. Which one of the following diagrams best represents this mixture at the atomic level?  Note:  “W” represents a water molecule.

Qualitative research focuses on internal and external validity in the same way that quantitative research focuses on these concepts. 

Which of the following research paradigms assumes that the researcher should be objective when conducting their studies?

Before they begin a focus group, researchers create a document that describes study procedures and questions that will be used. This is called a __________.

QUIZ PROBLEM #8 Situation:  63.4 grams of NO2 and 21.3 grams of H2 are combined and they react according to this chemical equation: 2 NO2 (s)  +  7 H2 (g)   –>   2 NH3 (g)  +  4 H2O (g) Molar masses for all substances: NO2 = 46.01 g/mol   |   H2 = 2.02 g/mol   |   NH3 = 17.04 g/mol   |   H2O = 18.02 g/mol   Instructions:  Type your answers to the questions in the textbox below. Label each answer A, B, C, D, E Show all work on your “work” page.  Label which problem it is (#8).   Questions: A.  Which reactant is limiting? B.  Briefly explain in words how you know which one is the limiting reactant based on your calculations.  Be specific. C.  How many grams of H2O should be produced? D.  How many grams of NO2 should be left over at the end? E.  How many grams of H2 should be left over at the end?  

QUIZ PROBLEM #7 Instructions:  Type your answer to the question in the textbox below. Show all work on your “work” page.  Label which problem it is (#7).   Question: Use dimensional analysis to solve this problem. How many grams of H2O are produced by the reaction of 85.0 mL of 4.25 M HCl solution with excess NaHSO4 in the reaction shown here? 2 NaHSO4 (aq)  +  8 HCl (aq)   –>   Na2S2O3 (aq)  +  4 Cl2 (g)  +  5 H2O (l)   Molar Masses for All Substances: NaHSO4 = 120.06 g/mol   |   HCl = 36.46 g/mol Na2S2O3 = 158.10 g/mol   |   Cl2 = 70.90 g/mol   |   H2O= 18.02 g/mol