<h3>Answer:</h3>
63.5456 amu
<h3>Solution:</h3>
Data Given:
Atomic Mass of ⁶³Cu = 62.9296 amu
Natural Abundance of ⁶³Cu = 69.17 %
Atomic Mass of ⁶⁵Cu = 64.9278 amu
Natural Abundance of ⁶⁵Cu = 30.83 %
Formula Used:
Average Atomic Mass = [(Atomic Mass of ⁶³Cu × Natural Abundance of ⁶³Cu) + (Atomic Mass of ⁶⁵Cu × Natural Abundance of ⁶⁵Cu)] ÷ 100
Putting values,
Average Atomic Mass = [(62.9296 × 69.17) + (64.9278 × 30.83)] ÷ 100
Average Atomic Mass = [(4352.8404) + (2001.7241)] ÷ 100
Average Atomic Mass = 6354.5645 ÷ 100
Average Atomic Mass = 63.5456 amu
The total molarity of alkali metal ions = 0.465 M + 0.014 M = 0.479 M
The total molarity of alkaline earth metal ions = 0.0055 M + 0.042 M = 0.0475 M
The total molarity of anions = 0.511 M + 0.029 M + 0.0039 M + 0.00097 M = 0.545 M
<h3>
What is molarity?</h3>
- The amount of a substance in a specific volume of solution is known as its molarity (M).
- The number of moles of a solute per liter of a solution is known as molarity.
- The molar concentration of a solution is another name for molarity.
- A chemical species' concentration in a solution, specifically the amount of a solute per unit volume of solution, is measured by its molar concentration.
- The number of moles per liter, denoted by the unit symbol mol/L or mol/dm3 in SI units, is the most often used unit denoting molarity in chemistry.
<h3>What is the molarity unit in the SI?</h3>
- The number of moles per liter, denoted by the unit sign mol/L or moldm3 in SI units, is the most often used unit for molarity in chemistry.
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If it’s a multiple choice question A is the correct answer
4mx2mx3m
Layer 2 and layer 9 are the same relative age.
Explanation:
The statement that best describes the rock layers is that Layer 2 and layer 9 are the same relative age..
The relative age is used in placing sedimentary rocks in order of their occurrence.
To do this, we apply the sedimentary laws.
The ones applicable here are:
- Principle of superposition states that in an undisturbed sequence, the oldest layer is at the base and youngest on top.
- Principle of cross cutting states that a fault and intrusion are younger than the rocks they cut through.
- Principle of fossil and fauna succession states that fossils and fauna succeed on another in a determinable form.
We see that layers 2 and 9 have the same fossil and are the same lithological units.
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Answer:
A BEC ( Bose - Einstein condensate ) is a state of matter of a dilute gas of bosons cooled to temperatures very close to absolute zero is called BEC.
Examples - Superconductors and superfluids are the two examples of BEC.
Explanation: