Number of atoms in 0.2 g molecule Br3O3 is (molar mass of Br3O8 is 368 g mol-') (1) 0.22 NA (2) 2.2 NA 0.2 (3) 0.2 NA (4) X11NA 368

Why are volumetric flasks used to prepare solutions for analysis?   Question options:   All of the above.   They are specifically designed to deliver a specific volume of solution.   Their shape provides better quality data.   They are specially designed to contain a specific volume of solution.   (on assignment I selected "all of the above which is evidently incorrect.. thanks for help!)

ame: Table 2. Determination of Acetylsalicylic Acid in Aspirin. 1) Aspirin Brand (and amount of acetylsalicylic acid on label) 2) Average molar concentration of NaOH Solution B (from Part A) 3) 4) 5) 6) Mass of aspirin tablet Mass of pulverized aspirin sample Initial buret reading Final buret reading 7) Volume of NaOH Solution B added 8) Moles of NaOH 9) Moles of acetylsalicylic acid in sample 10) Mass of acetylsalicylic acid in sample 11) Amount of acetylsalicylic acid per tablet T₁ 1.264 12) Mean amount of acetylsalicylic acid per tablet 13) Standard deviation for acetylsalicylic acid per tablet 14) RSD for acetylsalicylic acid per tablet 15) Relative percent error (%) 16) Is the mean amount per tablet acceptable? (Yes or no.) 0.000153 * 180. Kg Imol T₂ √3 1.261 1-259 Seat กา Basic 8.25 mg 0.0975 M Trial 1* Trial 2 *Show all calculations related to Trial 1, standard deviation, RSD, and relative % error. Mole of NaOH (0.0975) (14.3) = 0.000139 (0.0975) (15.7) = 8.000 253 23 0.0975)…

1-Does tap water conduct electricity? Group of answer choices yes no No answer text provided. No answer text provided.   2-Tap water is   Group of answer choices a weak electrolyte a strong electrolyte a nonelectrolyte No answer text provided.