An unknown sample of Ni 2+ gave a current of 2.36 A in an electrochemical analysis. When

Question:

An unknown sample of Ni²⁺ gave a current of 2.36 µA in an electrochemical analysis. When 0.500 mL of solution containing 0.028 7 M Ni²⁺ was added to 25.0 mL of unknown, the current increased to 3.79 µA.

Fantastic news! We've Found the answer you've been seeking!

Step by Step Answer:

Related Book For book-img-for-question

Quantitative Chemical Analysis

ISBN: 978-1429218153

8th edition

Authors: Daniel C. Harris

See More Books

Question Posted: Jun 04, 2020 11:19 AM

See More Questions

A 65.0-mL sample of 0.010 M Pb(NO3)2 was added to a beaker containing 40.0 mL of 0.035 MKCl. Will a precipitate form?
A 50.00-mL volume of 0.4987 M HCl was added to a 5.436-g sample of milk of magnesia. This solution was then titrated with 0.2456 M NaOH. If it required 39.42 mL of NaOH to reach the endpoint, what...
An unknown sample of dopamine gave a current of 34.6 nA in the electrochemical analysis. Then 2.00 mL of a solution containing 0.015 6 M dopamine was mixed with 90.0 mL of the unknown, and the...
Listed below are measured amounts of caffeine (mg per 12 oz of drink) obtained in one can from each of 20 brands (7-UP, A&W Root Beer, Cherry Coke, . . . , Tab). Are the statistics representative of...
Define and discuss the following terms: a. Case law b. Lower courts c. Tax Court d. Federal District Court e. Claims Court f. Circuit Courts g. Tax Court Memoranda h. Tax Court Regular Decisions i....
St. Johns River Shipyards is considering the replacement of an 8-year-old riveting machine with a new one that will increase earnings before depreciation from $24,000 to $46,000 per year. The new...
What is the difference between real objects and virtual objects? Give an example for each.
Consider the following characteristics of either a JIT production system or a traditional production system. a. Products are produced in large batches. b. Large stocks of finished goods protect...
The table shows the median income level for various age groups, based on the most recent U.S. Census data available. T O Median Income Age group (in years) 21-24 25-34 35-44 $38,145.00 45-54 55-64...
Mary's Nursery uses a perpetual inventory system. At December 31, the perpetual inventory records indicate the following quantities of a particular blue spruce tree: A year-end physical inventory,...
Detection limit. In spectrophotometry, we measure the concentration of analyte by its absorbance of light. A low-concentration sample was prepared, and nine replicate measurements gave absorbances of...
An unknown sample of Ni 2+ gave a current of 2.36 A in an electrochemical analysis. When 0.500 mL of solution containing 0.028 7 M Ni 2+ was added to 25.0 mL of unknown, the current increased to 3.79...
Target Corp. operates big box stores that sell everyday essentials and fashionable differentiated merchandise. It also operates an online business at target.com. Targets reported gross earnings per...
A diagonal tensor has numbers on the diagonal running from the upper left to the lower right corner, with all other entries being zero. What does a diagonal stress tensor imply?
Why is government needed to provide a public good? Under what circumstances might the voluntary contribution model, described in Figure 19.2, work reasonably well? PA + PB PB PA D = MB Public good...
Under utilitarianism, one maximizes the total utility of society. What does this imply about the marginal utility for each person? What does it imply about the total utility for each person?
Give some serious concerns (pitfalls) regarding strain analysis.
Consider a population of 1,000 families: 200 had Medicaid insurance, 700 had some other type of insurance, and 100 were uninsured. Suppose now that Medicaid broadens eligibility rules that would...
When you are trying to discover whether there is a relationship between two categorical variables, why is it useful to transform the counts in a crosstabs to percentages of row or column totals? Once...
Outline some of the major problems confronting an international advertiser.
Fractional composition in a triprotic system. For a triprotic system, the fractional composition equations are where D = [H + ] 3 + K 1 [H + ] 2 + K1K 2 [H + ] + K 1 K 2 K 3 . Use these equations to...
Explain what is wrong with the following statement: At its isoelectric point, the charge on all molecules of a particular protein is 0.
Calculate the pH at each of the following points in the titration of 50.00 mL of 0.010 0 M NaOH with 0.100 M HCl. Volume of acid added: 0.00, 1.00, 2.00, 3.00, 4.00, 4.50, 4.90, 4.99, 5.00, 5.01,...
Create a segmentation, selection and focus model that allows the PUMA company in Mexico to determine its customer, where to find it and how to generate value given its model. 7) Selection of the most...
Determine if the following values are zeroes polynomial. 4 3 f(x) = x + x-18x - 16x + 32 x+1, +2, +4 -
Cali Windows is a small company that installs windows. Its cost structure is as follows: (Click the icon to view the cost structure.) Calculate (a) the breakeven point in units and revenues and (b)...

An unknown sample of Ni 2+ gave a current of 2.36 A in an electrochemical analysis. When

Question:

Step by Step Answer:

Step 1 The concentration of the unknown sample is to ...View the full answer

Quantitative Chemical Analysis

Students also viewed these Engineering questions