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SCORE: 40 / 120 DAY 1 08:08 PROGRESS: 51% Interact with the LabPad if you want...
MMM SCORE: 70 / 120 DAY 1 08:36 PROGRESS: 65% Interact with the LabPad to answer the quiz. HOME THEORY MEDIA MISSION A standard solution is a solution of accurately known concentration. What is a standard solution for titrating sulfuric acid in an acid-alkali titration? a) Any alkalis or acids b) A salt such as sodium chloride c) An acid such as hydrochloric acid d) An alkali such as sodium hydroxide VIEW THEORY
SCORE: 30/120 DAY 1 08:04 PROGRESS: 31% Interact with the LabPad to answer the quiz. HOME THEORY MEDIA MISSION Nice! We have transferred 25 mL of sulfuric acid sample into a volumetric flask. Why do we use a volumetric flask? a) It doesn't require careful handling b) It's the only glassware that can handle acid dilutions c) To be able to heat it at a later stage d) To obtain an accurate and precise volume VIEW THEORY
SCORE: 56 / 170 DAY 1 08:47 PROGRESS: Interact with the LabPad to ans quiz. HOME THEORY MEDIA MISSION What precautions should you take when working with strong acids and bases? a) Always wear goggles and gloves b) Only perform work in the fume hood c) Keep a Bunsen burner switched on nearby d) Only use plastic lab equipment VIEW THEORY
SCORE: 70/170 DAY 1 08:21 PROGRESS: 65% Interact with the LabPad to answer the quiz. HOME THEORY MEDIA MISSION Well done! If you have a glass of pure water, without any acids or bases, how many hydronium ions (H3O+) do you expect? a) The same number as OH- b) None c) As many as there are water molecules d) Half the water is hydronium ions VIEW THEORY
CORE: 30 / 120 DAY 1 08:10 PROGRESS: 31% Interact with the LabPad to answer th quiz. HOME THEORY MEDIA MISSION Nice! We have transferred 25 mL of sulfuric acid sample into a volumetric flask. Why do we use a volumetric flask? a) To be able to heat it at a later stage b) It's the only glassware that can handle acid dilutions c) It doesn't require careful handling d) To obtain an accurate and precise volume VIEW THEORY
SCORE 18/120 DAY 1025 PROGRESS 2 5 Interact with the LabPad to answer the qui HOME THEORY MEDIA MISSION 5 What should we do to reduce the risk when working with concentrated acids and bases? a) Never work with it b) Neutralize it c) Dilute them d) Work with large volumes VIEW THEORY MacBook Air 20 000 ** F7 TE מיו 2 A * $ 4 % 5 & 7 3 6 8 9 E
BATTERIES SCORE: 20 / 220 DAY 1 08:03 PROGRESS: 14% Interact with the LabPad to answer the quiz. HOME THEORY MEDIA MISSION Lithium-ion batteries are not used for long term storage of energy. Why do you think that is? a) Because they are not safe to use b) Because they lose charge over time c) Because they can only be used for small items, like phones d) Because they take a long time to charge
SCORE 88 20 09:02 PROGRESS 719 Interact with the LabPad to answer quiz. HOME THEORY MEDIA MISSION What is the burette reading from the following image? 1 scroll down 4 5 6 VIEW THEORY MacBook Air SCORE 88/120 DAY 1 00:02 PROGRESS IS BE Interact with the LabPad to answer the que HOME THEORY MEDIA MISSION 6 a) 5.00 mL b) 5.15 ml c) 6.9 ml d) 5.10 mL VIEW THEORY MacBook Air 7 # 3 2 S 4 5...
PROGRESS: 74% DAY 1 09:35 SCORE: 94/170 Interact with the LabPad to answer the quiz. MISSION MEDIA HOME THEORY We know the number of hydronium ions determines the acidity of a solution and that is the measure of the acidity. You measured a pH of 7 in a solution with 10-7 ionized water molecules. Create a formula to calculate the pH depending on the H concentration (H+)! a) pH = -log (H+) b) pH = log (1 x 107) C)...
SCORE: 110 / 120 DAY 1 08:19 PROGRESS: 86% HOME Go to the Analysis Page to input the calculation results. THEORY MEDIA MISSION ON Look at the screen on the left side of the workbench. Volume of H2SO4 Input the volume of diluted water sample you added during the titration. Volume of NaOH Find the mean concordant titer from the Results Table and input it in the "Volume of NaOH box. Concentration of sulfuric acid Calculate the concentration of sulfuric...