To measure the amount of nickel in some industrial waste fluid, an analytical chemist adds 0.1400M sodium hydroxide NaOH solution to a 23.00g sample of the fluid and collects the solid nickel(II) hydroxide NiOH2 product. When no more NiOH2 is produced, he filters, washes and weighs it, and finds that 0.50g has been produced The balanced chemical equation for the reaction is: Ni2+(aq) + 2NaOH(aq) -> NiOH2(s) + 2Na+(aq) What kind of reaction is this? 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 0.1400M sodium hydroxide NaOH solution to a 23.00g sample of the fluid and collects the solid nickel(II) hydroxide NiOH2 product. When no more NiOH2 is produced, he filters, washes and weighs it, and finds that 0.50g has been produced The balanced chemical equation for the reaction is: Ni2+(aq) + 2NaOH(aq) -> NiOH2(s) + 2Na+(aq) What kind of reaction is this? 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
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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To measure the amount of nickel in some industrial waste fluid, an analytical chemist adds 0.1400M sodium hydroxide NaOH solution to a 23.00g sample of the fluid and collects the solid nickel(II) hydroxide NiOH2 product. When no more NiOH2 is produced, he filters, washes and weighs it, and finds that 0.50g has been produced
The balanced chemical equation for the reaction is:
Ni2+(aq) + 2NaOH(aq) -> NiOH2(s) + 2Na+(aq)
What kind of reaction is this?
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.
Expert Solution
Step 1
According to the question we have,
A balanced chemical reaction is as follows,
The mass of the sample is given by = 23.0 gm
The molarity of the sodium hydroxide (NaOH) solution is given by = 1400 M
The mass of the solid nickel(II) hydroxide is given by = 0.50 gm
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