What would be the volume of a block of iron that contains 1.98 x 1024 atoms of iron? Density of iron = 7.874 g/cm3
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If the volume of a single iron atom is 1.60 x 10^-23 cm³, what is its volume in cubic Angstroms (ų)? Note: 1 Å = 10^-10 m. 1.60 x 10^13 ų 16.0 ų 1.60 x 10^-15 ų 1.60 x 10^-11 ų Question 2 Rare earth magnets (also known as "NdFeB", "Neo" or "NIB" magnets) are strong permanent magnets that are made from an alloy of neodymium, iron, and boron atoms. How many neodymium atoms are in a rare earth magnet with a mass of 7.57 g, if the magnet is 26.7% neodymium by mass? 1.22 x 10^24 2.33 x 10^-26 3.36 x 10^24 8.44 x 10^21
Nishant K.
Iron has a mass of $7.87 \mathrm{~g}$ per cubic centimeter of volume, and the mass of an iron atom is $9.27 \times 10^{-26} \mathrm{~kg}$. If the atoms are spherical and tightly packed, (a) what is the volume of an iron atom and (b) what is the distance between the centers of adjacent atoms?
Iron has a density of $7.87 \mathrm{g} / \mathrm{cm}^{3},$ and the mass of an iron atom is $9.27 \times 10^{-26} \mathrm{kg}$ . If the atoms are spherical and tightly packed, (a) what is the volume of an iron atom and (b) what is the distance between the centers of adjacent atoms?
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