The degrre of polymerization in a sample of polypropylene is 1000. The molecular

Question

The degrre of polymerization in a sample of polypropylene is 1000. The molecular weight in this sample is: 42 g/mol 64 kg/mol 28,000 g/mol 92,000 amu 104,000 g/mol 156,000 g/mol 218,000 Daltons 334,000 g/mol 42000 amu Pilling Bedworth ratois for various metals are given below. The metal that is most likely to form a protective oxide is: Mo - 3.4 U - 3.05 Li-0.57 V - 3.18 Ce - 1.16 K - 0.45 Mo U Li V Ce K A degradable polymer that is used extensively in many new household products is PEDOT Polythiophene PVDF Poly lactic acid polyphenylene oxide polypropylene oxide A sacrificial anode that can be used to protect a stainless steel pipe is: Au Ag Ti Ni Mg

Explanation / Answer

Each repeating unit has 3 carbons and 6 hydrogens

m = 3*12.01 + 6*1.008 = 42.08 g/mol

degree of polymerization = 1000

mass = Dp*m

= 1000*42.08

= 42080 g/mol

= 42080 amu

Answer: 42080 amu

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