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Morgarella [4.7K]
3 years ago
12

Calculate the density of a block of water measuring 2 cm x 4 cm x 1 cm, with a mass of 5.4

Chemistry
1 answer:
Nastasia [14]3 years ago
3 0

the formula for density is p=m/v

m aka the mass = 5.4; the v aka the volume = 8

so, p=5.4/8

p= 0.675 g/cm^3

*let's just say the mass' unit is gram so the unit for the density is g/cm^3

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what is the total amount of energy required to remove the most loosely bound electron from each atom in a mole of gaseous Ca
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589.8 kJ/mol

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On another planet, the isotopes of titanium have the given natural abundances. Isotope Abundance Mass (amu) 46Ti 72.000% 45.9526
tiny-mole [99]

Answer:

46.784886 amu is the average atomic mass of titanium on that planet.

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Fractional abundance of Ti-46 =72.000% = 0.72000

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Atomic mass of Ti-48 = 47.94795 amu

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\text{Average atomic mass }=\sum_{i=1}^n\text{(Fractional abundance)}_i\times \text{(Atomic mass of an isotopes})_i

Average atomic mass of titanium atom:

0.72000\times 45.95263 amu+0.14300\times 47.94795 amu+0.13700\times 49.94479 amu=46.784886 amu

46.784886 amu is the average atomic mass of titanium on that planet.

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