Determine the molecular weight of a poly
Determine the molecular weight of a poly(ethylene-propylene) with a degree of polymerization of 25,000 given that 20% of the mers (by number) are ethylene and 80% are propylenel.
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A car starts from a rest and travels for 5s with a uniform acceleration of 1.5m/s2.the driver then applies the brakes,causing a uniform deceleration of 2.0m/s2.if the brakes are applies for 3.0s, what is the velocity and displacement of the car at
The specific heat of liquid bromine is 0.226 J/g-K. How much heat (J) is required to raise the temperature of 10.0 mL of bromine from 25.00C to 27.30C? The density of liquid bromine: 3.12 g/mL
Explain why the short-circuit method for determining the Thevenin resistance of a circuit cannot be applied if the circuit does not contain any independent current or voltage sources.
A 6.0-g sample of [Ni(H2O)6]Cl2 is dissolved in aqueous solution. If an excess of ethylenediamine (en) is added to the solution, solid [Ni(en)3]Cl2*2H2O forms.
A 2 kg block initially hangs at rest at the end of two 1-meter strings of negligible mass. A .003 kg bullet, moving horizontally with a speed of 1000 meters per second, strikes the block and becomes embedded in it. After the collision, the bullet/
A 1L flask is filled with 0.25mol N2and 0.65mol H2 at 20oC. These gases react to make NH3, heating up the flask to a temperature of 45oC. What is the final pressure of the flask?
If we give 2334 A, 540V on Primary side of 1.125 MVA step up transformer, then what will be the Secondary Current, If Secondary Voltage=11 KV?
What mass of magnesium is required to produce enough gas to exert a ... exert a partial pressure of 0.50 atm in a 50.0 mL flask at a temperature of 25.0 C
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