Answer:
The answer to your question is Abundance N-14 = 99.63%
Abundance N-15 = 0.37%
Explanation:
Data
Average atomic mass = 14.0067 amu
N-14 = 14.003074002
N-15 = 15.00010897
Abundance N-14 = ? x
Abundance N-15 = ? 1 - x
Formula
Average atomic mass = (mass of N-14)x + (mass of N-15)(1 - x)
Substitution
14.0067 = 14.003074002x + 15.00010897(1 - x)
Solve for x
14.0067 = 14.003074002x + 15.00010897 - 15.00010897x
14.0067 - 15.00010897 = 14.003074002x - 15.00010897x
-0.9934 = -0.99703x
x = -0.9934 / -0.99703
x = 0.9963
Conclusion
Abundance N-14 = 0.9963 x 100 = 99.63 %
Abundance N-15 = 1 - 0.9963 = 0.0037 x 100 = 0.37 %
We may not see notice it but plate tectonics actually have a "recycle" process. However, scientist reported that it happens in a span of 500 million years. Over the years, the oceanic crusts are pressured to the topmost layer of the mantle causing the oceanic crusts to melt and mix with the Earth's mantle. Such crust blending results to the formation of volcanoes underwater. In time, the said volcanoes would erupt causing the formation of new oceanic and continental crusts.
The answer is a. temperature and pH can affect how the enzymes work
Answer: B.22.4 liters
Explanation:
When we attribute to a certain fixed mass of a given gas a fixed number of molecules. Avogadro considered that the mass of 36g of oxygen at any temperature and pressure would have a fixed number of molecules to which he called 1 mol of molecules. So by definition 1 mole of molecules would have a number of molecules equal to that present in 36 g of oxygen. The occupied volume by one mole of molecules at a given temperature and pressure is called molar volume and consists in 22,4 Liters. The molar volume matches the Avogadro Hypothesis (created in 1811 by Amedeo Avogadro), where equal volumes of different gases, at the same temperature and pressure, have even number of moles.
