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A charge of -330e is uniformly spread through thevolume of a sphere of radius 1.95 cm. What is the volume charge density in that sphere
The value of nD20 for a mixture can be approximatedas the weighted average of the refractive indices ofthe individual components. For a heptane/alpha-pinene mixture nD20 (mixture)=VheptanenD20 (hept
Calculate the mass of carbon dioxide released when 255 g of copper carbonate [molar mass = 123.5 g/mol] is heated (assuming that the reaction goes to completion). The molar mass of CO2 is 44.0 g/mol
An outboard motor propels a boat through the water at 13 mi/h. How much power is produced by the motor
Is copper complex of tetraphenylporphyrin(TPP) more polar or less polar than tetraphenylporphyrin(TPP) itself?
Two satellites are in circular orbits around a planet that has radius 9.00×10^6m. What is the orbital speed of the second satellite
Calculate the equilibrium amounts if initially 0.1 moles H2 0.2 moles I2 are mixed and equilibirum is established at 300K. Kc at this temperature is 70.
The expanding gases that leave the muzzle of a rifle also contribute to the recoil. A .30 caliber bullet has mass 7.20×10?3kg, Find the momentum of the propellant gases in a coordinate system at
Which of the following organic halides will undergo an E2 elimination on heating with potassium hydroxide in ethanol? a. 2,2-dimethyl-1-bromopropane b. 2,2-dimethyl-1-bromocyclohexane c. benzyl chl
A 3.50e-6 F capacitor accumulates 51 ?C of charge when connected to a battery. What is the battery's voltage
State whether the equilibrium partial pressure of NH3 increases, decreases or stays the same. (a) increasing the temperature; (b) transferring the equilibrium mixture to a larger reaction vessel; (c
Suppose a capacitor in a video camera has a capacitance of 26.0 ?F, How much potential energy is stored in the capacitor
Which reagent would be best for achieving an E2 elimination of 3-chloropentane? a. C2H5OH b. CH3CO2Na c. NaHCO3 d. NaI
Two thin beams are joined end-to-end as shown in the figure to make a single object. What is the gravitational torque on the object
The valence shell electron pair repulsion (VSEPR) theory states that molecules assume a shape that minimizes the repulsion between electron pairs and bonded atoms in the valence shell of the central
In a volcanic eruption, a 2.40 × 103 kg boulder is thrown vertically upward into the air. Where will the other fragment land
Examining your image in a convex mirror whose radius of curvature is 24.8cm , you stand with the tip of your nose 10.2cm from the surface of the mirror. Where is the image of your nose located
High-purity benzoic acid (C6H5COOH; ?Hcomb = -3227 kJ/mol) is a combustion standard for calibrating bomb calorimeters. A 1.169 g sample burns in a calorimeter (heat capacity of calorimeter alone = 1
Two masses are placed on an airtrack and given initial velocities towards each other. Calculate the impulse acting on mass one during the collision
If you used 0.165mL of acetic anhydride, and 0.167g of p-aminophenol what was your theoretical yield of acetaminophen. b) If you recovered 0.187g of acetaminophen, what was your percent yield
A satellite with a mass of 250 kg moves in a circular orbit 7.00 multiply.gif 107 m above the Earth's surface. What is the gravitational force on the satellite
Which of the following isomeric chlorides will undergo Sn2 substitution most readily? Why? a. 4-chloro-1-butene b. 1-chloro-1butene (cis or trans) c. 1-chloro-2-butene (cis or trans) d. 2-chloro-1-b
What is the maximum temperature and what is the (air-standard) thermal effiency?
A 85.0 kg fullback is running at 3.86 m/s to the east and is stopped in 0.800 s by a head-on tackle by a tackler running due west. Calculate the impulse exerted on the tackler
pairs of soluble solutions can be mixed. In some cases, this leads to the formation of an insoluble precipitate. Decide, in each case, whether or not an insoluble precipitate is formed.