Molecular weight data for some polymer are tabulated here. molecular weight range (g/mol) xi wi 2 - 35000 0.04 0.01 35000 - 5 0.07 0.04 5 - 65000 0.16 0.11 65000 - 8 0.26 0.24 8 - 95000 0.24 0.27 95000 - 11 0.12 0.16 11 - 125000 0.08 0.12 125000- 14 0.03 0.05 compute the following: (a) the number-average molecular weight. entry field with incorrect answer 73800 g/mo
Answers: 3
Chemistry, 22.06.2019 13:00
In a copper wire, a temperature increase is the result of which of the following
Answers: 1
Chemistry, 22.06.2019 18:50
At stp, which substance is the best conductor of electricity? a. nitrogen b. neon c. sulfur d. silver
Answers: 1
Chemistry, 22.06.2019 20:30
How many grams of phosphorus are contained in 5.09 moles of phosphorus?
Answers: 1
Chemistry, 23.06.2019 03:00
Air pressure is measured in pascals. for a professional american football game, the ball should be inflated to about 90,000 pascals. scientists studied the effects of air temperature on the pressure inside american footballs by taking these steps: 1. prepare 100 footballs. 2. measure each football's air pressure. 3. divide footballs into 10 groups. 4. place the groups in different lockers cooled to different air temperatures. 5. after 12 hours, remove the footballs from lockers. 6. measure each football's pressure again. 7. compare the new pressures to the starting pressures. what two terms best describe the variable "air pressure inside the football" in this experiment? independent, qualitative independent, quantitative dependent, qualitative dependent, quantitative
Answers: 3
Molecular weight data for some polymer are tabulated here. molecular weight range (g/mol) xi wi 2 -...
Mathematics, 18.04.2020 01:40
Mathematics, 18.04.2020 01:40
Mathematics, 18.04.2020 01:40
Biology, 18.04.2020 01:40
Mathematics, 18.04.2020 01:40
Physics, 18.04.2020 01:40