To measure the amount of nickel in some industrial waste fluid, an analytical chemist adds 0.1700M sodium hydroxide (NaOH) solution to a 23.00 g sample of the fluid and collects the solid nickel(II) hydroxide (Ni(OH),) product. When no more Ni(OH), is produced, she filters, washes and weighs it, and finds that 0.30 g has been produced. The balanced chemical equation for the reaction is: Ni* (aq) + 2NaOH(aq) Ni (OH),(4) + 2 Na (aq) precipitation What kind of reaction is this? acid-base redox If you said this was a precipitation reaction, enter the chemical formula of the precipitate. If you said this was an acid-base reaction, enter the chemical formula of the reactant that is acting as the base. If you said this was a redox reaction, enter the chemical symbol of the element that is oxidized. Calculate the mass percent of Ni in the sample. Be sure your answer has the correct number of significant digits.
To measure the amount of nickel in some industrial waste fluid, an analytical chemist adds 0.1700M sodium hydroxide (NaOH) solution to a 23.00 g sample of the fluid and collects the solid nickel(II) hydroxide (Ni(OH),) product. When no more Ni(OH), is produced, she filters, washes and weighs it, and finds that 0.30 g has been produced. The balanced chemical equation for the reaction is: Ni* (aq) + 2NaOH(aq) Ni (OH),(4) + 2 Na (aq) precipitation What kind of reaction is this? acid-base redox If you said this was a precipitation reaction, enter the chemical formula of the precipitate. If you said this was an acid-base reaction, enter the chemical formula of the reactant that is acting as the base. If you said this was a redox reaction, enter the chemical symbol of the element that is oxidized. Calculate the mass percent of Ni in the sample. Be sure your answer has the correct number of significant digits.
Chemistry for Engineering Students
4th Edition
ISBN:9781337398909
Author:Lawrence S. Brown, Tom Holme
Publisher:Lawrence S. Brown, Tom Holme
Chapter4: Stoichiometry
Section: Chapter Questions
Problem 4.88PAE: 4.88 A quality control technician needs to determine the percentage of arsenic (As) in a particular...
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