Review Game Eureeka Time Get a board Calcium carbonate cylinder Wipey thing Partner If viewing on the internet: Get a pencil and paper and attempt to answer the questions first . . . that is why its called review . . . If you put a signed piece of paper in the top shelf of papers to grade which says “MungaDinga Lunchbox” you will receive extra credit on the exam 1. Which of the following is the best conductor of electricity? NaCl (s) NaCl (aq) C6H12O6 (s) C6H12O6 (aq) NaCl (aq) 2. Which solution is the best conductor of electricity? 0.1 M HNO3 0.1 M CH3COOH 0.1 M C6H12O6 0.1 M C2H5OH 3. What happens to the conductivity of a solution if KCl is added to a saturated solution of KCl? 4. In a 0.01 M solution of HCl, blue litmus will do what? 5. In the below reaction, which quantity would be considered the proton doner? HF + H2O H3O+ + F- 6. The conjugate base of NH3 is NO2 NO3 NH2 NH3 7. A 0.1 M acid solution at 298 K would conduct electricity best if the acid had a Ka value 1 x 10-7 1.7 x 10-2 6.6 x 10-4 1.8 x 10-5 Pure water is similar to 1.0 M HCl in that they both Contain H3O+ Are neutral to litmus Have a pH higher than 7 Are good conductors of electricity According to the Bronsted-Lowry theory, an acid is any species that can . . . When tested, a solution turns red litmus to blue. This indicates that the solution contains two types of ion. Which ion is more abundant? What will water become if it acts as a base? + H3O 12. In the reaction below is water an acid, a base, or both? H2O + H2O H3O+ + OH- BOTH Which salt will hydrolyze in water to create a basic solution? NaNO2 CaCl2 BaI2 MgSO4 What does this mean? React each with water . . If the product is a strong base and a weak acid, it will be a basic solution. NaNO2 + H2O NaOH + HNO2 Note the How many mL of 1.0 M H SO are is15 mL neededmole to exactlyratio neutralize of 2.0 M Ba(OH) ? 2:2 30-mL 2 2 4 As 50-mL of 0.1 M HCl is added to 100-mL of 0.1-M NaOH, the pH of the NaOH will do what? 16. Write a chemical equation that would represent a neutralization reaction. A water solution contains 0.50 moles of HCl. How many moles KOH should be needed to neutralize the acid? 0.50 moles How many grams does that represent? 28.5-g 18. What is the pH of a solution if the HYDROXIDE ion concentration is 1 x 10-4 moles per liter? 10 What is the [H3O+] of a 0.001 M HCl solution? 1.0 x -3 10 20. Write the Ka equation for the following reaction: HNO2 (aq) = H+ (aq) + NO2- (aq) You find an unknown solution in the lab What characteristics will it have if it is a base? What characteristics will it have if it is an acid? The chemical turns methyl orange a dark red color. 22. What materials will you need if you are going to do titration to see what the concentration of the chemical is?