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the Chemical Changes experiment (E3) on copper, which of the steps can be omitted if our goal is only to obtain dry copper(I) oxide lid? O a. Decanting and adding sulfuric acid to dissolve black precipitate O b. Addition of NAOH to Cu(NO3)2 solution O c. Filtering and heating until dry and fully black Od. Boiling of previous solution until black Clear my choice

the Chemical Changes experiment (E3) on copper, which of the steps can be omitted if our goal is only to obtain dry copper(I) oxide lid? O a. Decanting and adding sulfuric acid to dissolve black precipitate O b. Addition of NAOH to Cu(NO3)2 solution O c. Filtering and heating until dry and fully black Od. Boiling of previous solution until black Clear my choice

General Chemistry - Standalone book (MindTap Course List)
General Chemistry - Standalone book (MindTap Course List)
11th Edition
ISBN:9781305580343
Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Publisher:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Chapter21: Chemistry Of The Main-group Elements
Section: Chapter Questions
Problem 21.199QP
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Hi please choose the correct answer :) and if you can please explain it thank you

apacit d. The purity of KHP standard was taken as 100% when in actual it was not. Clear my choice A 10.00 ml sample of Y(OH)2 was titrated to the stoichiometric point with 14.50 mL of 0.2345 M H2X. The total number of moles of Y(OH)2 is O a. 0.0034 O b. 0.00469 O c. 0.00034 O d. 0.0068 Clear my choice
Transcribed Image Text:apacit d. The purity of KHP standard was taken as 100% when in actual it was not. Clear my choice A 10.00 ml sample of Y(OH)2 was titrated to the stoichiometric point with 14.50 mL of 0.2345 M H2X. The total number of moles of Y(OH)2 is O a. 0.0034 O b. 0.00469 O c. 0.00034 O d. 0.0068 Clear my choice
In the Chemical Changes experiment (E3) on copper, which of the steps can be omitted if our goal is only to obtain dry copper(II) oxide solid? a. Decanting and adding sulfuric acid to dissolve black precipitate b. Addition of NaOH to Cu(NO3)2 solution c. Filtering and heating until dry and fully black O d. Boiling of previous solution until black Clear my choice The concentration of the sodium hydroxide titrant is determined with the use of KHP as primary standard because KHP is: a. is a low molecular weight substance. O b. is non-hygroscopic. O c. readily absorbs atmospheric moisture. d. comes in a highly concentrated form. Clear my choice
Transcribed Image Text:In the Chemical Changes experiment (E3) on copper, which of the steps can be omitted if our goal is only to obtain dry copper(II) oxide solid? a. Decanting and adding sulfuric acid to dissolve black precipitate b. Addition of NaOH to Cu(NO3)2 solution c. Filtering and heating until dry and fully black O d. Boiling of previous solution until black Clear my choice The concentration of the sodium hydroxide titrant is determined with the use of KHP as primary standard because KHP is: a. is a low molecular weight substance. O b. is non-hygroscopic. O c. readily absorbs atmospheric moisture. d. comes in a highly concentrated form. Clear my choice
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