I need help with reaction 2. > Reaction 2 [copper (II) nitrate → copper (II) hydroxide]Sodium hydroxide (NaOH) is corrosive. If you get it on your skin, wash it off immediately.1. Using a dispensing pipette, add 3 mL of 3.0M sodium hydroxide solution to the copper (II) nitratemixture. (The NaOH is dissolved in water; '3.0M' is a measure of the concentration of thesolution.)Observe first, then stir with a glass stirring rod and observe again. Record observations!Now, dip your stirring rod into the solution and then touch it to a piece of red litmus paper. If thepaper turns blue, you have added enough sodium hydroxide solution. If the paper remains red,add a little more of the sodium hydroxide solution, stir and test again with a fresh piece of litmuspaper. (Red litmus paper turns blue in a basic solution and stays red in an acidic solution.)4. Record observations.2.3.Blue solid copper (II) hydroxide is one of the products of this reaction. Sodium nitrate is anotherproduct of this reaction, but because it is very soluble in water, you won't be able to see it. Note:Don't assume that water is a reactant or product in any of these reactions unless you are toldthat it is; water will be present in all of the reactions, but in some of the reactions water is onlyacting as a solvent in which the reactants and products are dissolved.4-2 PRELAB AssignmentLab Day:IMPORTANT DIRECTIONS: After reading the entire handout, complete the following diagrams ofthe five reactions steps. The first one is done for you, as an example of what is expected. This isdue at the start of lab. You will NOT be allowed to complete this lab (at any time and will receivea score of '0') without turning in this COMPLETED page at the start of lab.Reaction 1: Balanced Reaction EquationReaction 2: Balanced Reaction EquationCu(s) + 4HNO3(aq) → Cu(NO3)2(aq) + 2NO2(g) + 2H₂O(l)List of substancesadded to centrifugetube:1. Copper2.3. water6M Nitric acidName:AND Amount ofeach substanceadded:1.15 cm x 2.5 cm2.1.5 mL3. Until tube is 2/3 fullSafety hazards to be aware of (give at leastone!):List of substancesadded to centrifugetube:1. Acid is corrosive2. NO₂ gas is toxic, keep under Fume Hood!Color of the copper product: blue solutionReaction 3: Balanced Reaction Equation:AND Amount ofeach substanceadded:Safety hazards to be aware of (give at leastone!):Color of the resulting copper product:List of substancesadded to centrifugetube:4- Copper to CopperAND Amount ofeach substanceadded:Safety hazards to be aware of (give at leastone!):Color of the copper product:List of substancesadded to centrifugetube:Reaction 4: Balanced Reaction Equation:AND Amount ofeach substanceadded:Safety hazards to be aware of (give at leastone!):Color of the resulting copper product:...4-5

Reaction 2: Balanced Reaction Equation List of substances added to centrifuge tube: AND Amount of each substance added: Safety hazards to be aware of (give at least one!): Color of the copper product:

Reaction 2: Balanced Reaction Equation List of substances added to centrifuge tube: AND Amount of each substance added: Safety hazards to be aware of (give at least one!): Color of the copper product:

Chemistry & Chemical Reactivity

10th Edition

ISBN:9781337399074

Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Chapter20: Environmental Chemistry-earth's Environment, Energy, And Sustainability

Section: Chapter Questions

Problem 41PS

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