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Serjik [45]
3 years ago
13

How many atoms are in 12 moles of iron?

Chemistry
1 answer:
Murljashka [212]3 years ago
3 0

Explanation: The atomic mass of iron (Fe) is 55.85 amu. The atomic mass of radium (Ra) is 226 amu. One mole of atoms of any element contains 6.022 X 1023 atoms, regardless of the type of element. The mass of one mole of an element depends on what that element is, and is equal to the atom mass of that element in grams.

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How many atoms are in 165 g of calcium?
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             <span> Find the molar mass of calcium acetate...158.165g.
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7 0
4 years ago
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Assume a gasoline is isooctane, which has a density of 0.692 g/ml. What is the mass of 3.8 gal of the gasoline (1 gal = 3.78 l)?
sveticcg [70]

Density is the ratio of mass to the volume.

The mathematical expression is given as:

density=\frac{mass}{volume}

Now, density of isooctane = 0.692 g/mL

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6 0
3 years ago
Which statements correctly describe thermal energy in a block of ice, a glass of liquid water, and a container of steam?
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Steam always has more thermal energy than ice.

Explanation:

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For any molecule at the surface the resulting surrounding forces equal zero
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False is the correct answer
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