Wolfgang Beltracchi is an infamous art counterfeiter, having successfully forged

Question

Wolfgang Beltracchi is an infamous art counterfeiter, having successfully forged at least 14 paintings sold for millions of dollars, before his selection of paint exposed him as a fraud. In his forgery of a painting supposedly made in 1914, Beltracchi used a white paint not available until years later. Beltracchi should have used basic lead(II) carbonate or zinc(II) oxide, which were popular historical pigments for white paint. Instead, he used the modern white pigment of titanium(IV) oxide. The ability to test for the titanium ion in white paint has exposed other forgeries by Beltracchi as well as other artists. Interestingly, the scandal has now made Beltracchi’s own original work extremely valuable, sometimes surpassing the value of the forgeries.

Please help

Thank you

Question 1 3 pts Lead(ll) carbonate is not currently a popular pigment due to the possible toxic effects of the lead ion. In fact, many states have legally restricted its use or have required that it be clearly labeled whenever it is used (Right-to-Know or RTK). Look up the Regulatory Information in the SDS for lead(ll) carbonate. Name two states that have restricted or regulated the use of lead(ll) carbonate. Use the full name of the state. Do not abbreviate. Question 2 3 pts Lead and zinc can be distinguished by their solubility behavior with certain anions. After consulting the solubility rules, propose one anion that could be used to distinguish these cations that contribute to historic white pigments.

Explanation / Answer

1) the two states are

(i) state of Rhode Island

(ii) State of Ohio's

2) zinc and lead can be distinguised from each other by using iodide ions

As Lead forms yellow precipitate with iodide ions while zinc do not

3) the percentage of lead carbonate = 52%

Total mass of paint tube = 80grams

So mass of lead carbonate = 52 X 80 / 100 grams = 41.6 grams

Related Questions

Navigate

• Browse (All)
• Browse W
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.