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What is the atomic mass of hafnium if, out of every 100 atoms, 5 have a mass of 176, 19 have a mass of 177, 27 have mass of 178, 14 have a mass of 179, and 35 have a mass of a 180?
If there are two an element $"Average atomic mass" = "mass"_axx "fract"_a + "mass"_b xx "fract"_b$ In the given problem about Hafnium, 5 isotopes have been given. Extending the...
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What is the average atomic mass of an element if, out of 100 atoms, 5 have a mass of 176 amu, 19 have a mass of 177 amu, 27 have a mass of 178 amu, 14 have a mass of 179 amu, and 35 have a mass of 180 amu?
The $"Average Atomic Mass"$ of an element is defined as "the weighted average mass of all naturally-occurring (occasionally radioactive) of the element." (and hence the name "average") [1] Dividing the...
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What molecules are losing energy (known as oxidation) and gaining energy and (known as a reduction) in the electron transport chain?
NADH and FADH2 both lose their hydrogens and hydrogen reacts with oxygen to form water.
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Which planets are known as the terrestrial planets? Which are known as the gas giants?
The term terrestrial means Earth like. This really means that they are rocky planets. The inner four planets Mercury, Venus, Earth and Mars are all rocky and hence terrestrial planets....
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According to the Heisenberg uncertainty principle if the position of a moving particle is known what other cannot be known?
Its velocity. However, the particle has to be microscopic in order for this phenomenon to be most applicable. For macroscopic objects, for most intents and purposes, you can observe both...
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What is the relationship between atomic mass and mass number?
Let's talk about four atoms, one of hydrogen ($""_1^1H$), one of carbon-12 ($""_6^(12)C$), one of iron-56 ($""_26^56Fe$) and one of Uranium-238 ($""_92^(238)U$). The mass number for hydrogen is 1,...
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What is the relationship between the size of an organism and its surface area to volume ratio?
Mathematically if you consider 2 cubes of length breadth and height of 1m×1m×1m and 3m×3m×3m You will see the first cube will have a SA:V of 6:1 but the second...
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What is the relationship between rate of ion exchange and surface area-to-volume ratio?
this is because the more surface area available for each unit volume, the more chance for the molecules to get into this volume from a bigger surface which means more...
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The element copper has naturally occurring isotopes with mass numbers of 63 and 65. The relative abundance and atomic masses are 69.2% for a mass of 62.93 amu and 30.8% for a mass of 64.93 amu. What is the average atomic mass of copper?
$""^63Cu$ has $69.2%$ abundance. $""^65Cu$ has $30.8%$ abundance. So, the weighted average is $62.93xx69.2%$ $+$ $64.93xx30.8%$ $=$ $63.55$ $"amu"$. If we look at , copper metal (a mixture of isotopes...
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2. The element copper has naturally occurring isotopes with mass numbers of 63 and 65. The relative abundance and atomic masses are 69.2% for a mass of 62.93 amu and 30.8% for a mass of 64.93 amu. How do you calculate the average atomic mass of copper?
And thus the $"weighted average"$ is: $(62.93xx69.2%+64.93xx30.8%)*"amu"$ $=$ $63.55$ $"amu"$
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