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Consider the rotation of the Sun (M=1.989×1030 kg, R=6.955×108 m) if it were to collapse without losing mass into a neutron star with radius of R=11.3 km. Assume that the Sun and the neutron star are both solid spheres and that angular momentum is conserved during collapse. If the Sun's initial rotational period is 28.9 days, what would the new rotation period be? Express your answer in seconds.
Calculate the APF for (a) the simple cubic and (b) body centered cubic lattices as volume of atoms/volume of cell. (c) Which structure is more dense given atoms of equal mass? The edge length for simple cubic is 2r. Remember that each corner atom ..
calculate the formal concentration of a sodium acetate solution prepared by diluting 45.0 ml of a solution containing
What was the percentage by mass of Mg(OH)2 in the original sample? When Mg(OH)2 or Al(OH)3 reacts with HCl(aq), the products are a chloride and water.
Consider a reaction A+B=2C having a equilibrium constant Kc=5. If the initial concentrations are [A]=2M [B]=3M and [C]=0M, calculate the equilibrium concentration of [A],[B] and [C]
solid nacl is added slowly to a solution containing 0.10 m agno3 and 0.20 m pbno32. ksp for agcl is 1.8x10-10. ksp for
Suppose 25.0 g of solid NaOH is added to 1.5 L of an aqueous solution that is already 2.4 M in NaOH. Then water is added until the final volume is 4.00 L. Determine the concentration of the NaOH in the resulting solution.
in a certain particle accelerator protons travel around a circular path of diameter 18.0 m in an evacuated chamber
Name two organic compounds that cannot be extracted effectively from an aqueous solution by means of an immiscible organic solvent such as ether or cyclohexane.
The Ksp for Mn(OH)2 is 2.0 x 10-13. At what pH will Mn(OH)2 begin to precipitate from a solution in which the initial concentration of Mn2+ is 0.10 M
the osmotic pressure of 180.0 ml solution of sucrosec12h22o11 in ethanol at28.0degc is 1.85 atm. what is the molar
Elementary mercury was first discovered when a mercury oxide was decomposed with heat, foarming mercury metal and oxygen gas. Wehn 0.24-g sample of the mercury oxide is heated, 0.189-g of mercury metal reamins.
If 0.20 moles of CaCl2 is added to 200.00 ml of a 0.50M NaCl solution, calculate the final concentration of [Cl-] in the solution.
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