Answer:
2.05mg Fe/ g sample
Explanation:
In all chemical extractions you lose analyte. Recovery standards are a way to know how many analyte you lose.
In the problem you recover 3.5mg Fe / 1.0101g sample: <em>3.465mg Fe / g sample. </em>As real concentration of the standard is 4.0 mg / g of sample the percent of recovery extraction is:
3.465 / 4×100 = <em>86,6%</em>
As the recovery of your sample was 1.7mg Fe / 0.9582g, the Iron present in your sample is:
1.7mg Fe / 0.9582g sample× (100/86.6) = <em>2.05mg Fe / g sample</em>
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I hope it helps!
Answer:
it is regurgitated and an owl pellet
Answer:
ions
Explanation:
if you have telekinesis and you move a pencil the ions are the ones moving it the ions that are in our bodies are different with the ones in the air that's why sometimes when it rains some of us get sick it's because the ions that are in the air enter into our bodies
No, the nonmetals in groups 5A, 6A, and 7A would form negatively charged ions. This is because they would accept electrons so that they can have a full octet. For example, N³⁻, O²⁻, F⁻.