A Sample of Natural Rubber (200

question 39

Multiple Choice

A sample of natural rubber (200.0 g) is vulcanized, with the complete consumption of 4.8 g of sulfur. Natural rubber is a polymer of isoprene (C₅H₈) . Four sulfur atoms are used in each crosslink connection. What percent of the isoprene units will be crosslinked?

• A) 1.3
• B) 9.4
• C) 2.5
• D) 7.6
• E) 5.1

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