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In the Volumetric analysis experiment. To standardize the NaOH solution; a student weighs 0.270 potassium bydrogen phthalate ( (MM=204.22g/mol); after dissolving the sample using deionized

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"In the "Volumetric analysis" experiment. To standardize the NaOH solution; a student weighs 0.270 potassium bydrogen phthalate ( (MM=204.22g/mol); after dissolving the sample using deionized wate drops of the indicator were added. 28.8mL of NaOH(MM=40.00g/mol) were added from the bure reach the end point. Answer question 1.2 and 3 1. What is the morality of NaOH solution? (Show your calculation) A) 1.322103M B) 0.0230M C) 0.234M D) 6.75103M E) 0.0460M 2. In part II of the experiment, the NaOH solution prepared above was used to determine the concentra an acid HA. Two drops of the indicator were added to 10.0mL of HA and NaOH was added to reach point. 19.5mL of NaOH were consumed to reach the end point. Calculate the concentration of HA ? your calculation) A) 0.0679M B) 0.0897M C) 0.179M D) 0.0236M E) 1.072M 3. The indicator you used in the experiment was A) universal indicator B) litmus paper C) KHP D) phenolphthalein E) NaOH "In the "periodie chart experiment" answer questions 4, 5, 6, 7, and 8 4. All metals you used in the experiment dissolve in 6MHCl except A) M& B) AI C) Cu D) Ca E) C \& D 5. In the periodic table, which of the following identifies as d - block elements? A) transition metals B) actinides C) halogens D) lanthanides E) alkaline metals 6. When sulfur dioxide ( SO2 ) is dissolved in water, the resulting solution is: A) base B) acidic C) neutral D) amphoteric E) a gas is evolved 7. Which of the following represents as an oxidation process? A) Co3++eCo2+ B) Cr2+CrO42 C) SO42SO3 D) ClO4ClO5 E) Fe2+2eFe

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