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Fe, Co, and Ni are ferromagnetic, whereas Ru, Ir, and Pd are diamagnetic. Explain why magnetic metals are found only among the 3d and 4f elements. Why are Sc and Ti, which are also 3d elements, diamagnetic?
how many grams of potassium sulfate are required to make 385 ml of 2.5M solution
Calculate the number of kilograms of helium needed to inflate a balloon to a volume of 100,000 L at an atmospheric pressure of 250 mmHg and a temperature of -35 °C.
Calculate the equilibrium concentrations of NH3 and H2S if a sample of solid NH4HS is placed in a closed vessel and decomposes until equilibrium is reached
Calculate the deltaG for the hydrolysis of ATP in liver, muscle, and brain cells using the following table. In which cell type is the free energy of ATP hydrolysis more negative?
If 3.0 Ml of distilled water is added to 2.0 ml of 0.35M CoCl2 solution, what is the concentration of the resulting solution.
A 93-L sample of dry air cools from 145 degrees celicus to -22 degrees celicus while the pressure is maintained at 2.85 atm. What is the final volume?
If the actual yield is 220.0 g and the theoretical yield is 275.6 g then what will be the percent yield of ferrous sulfide.
Organic Reactions - Cyclopentadiene, Why is cyclopentadiene monomer more stable at higher temperatures although dicyclopentadiene (dimer) is more stable at lower temperatures?
A mixture of gases containing 21.0 g of N2, 106.5 g of Cl2, and 12.0 g of He at 14 oC is in a 50.0 L container. What is the partial pressure of N2.
Calculate the Root Mean Square Speed and its average kinetic energy per molecule of Nitrogen and water vapor
what concentration in ppm would it constitute? The effective volume of the earth's atmosphere is about 4.2 billion km^3, and take the average pressure to be 550 mm Hg and the average temperature to be -10 degrees C. The molar mass of air is 29 g/m..
Find out the molar mass of each of the given gases 1) 2.16 grams of a gas that occupies 1.38L at 665 mmHg
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