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kotykmax [81]
3 years ago
12

What is the lightest material ever created by the hands of men

Chemistry
1 answer:
lutik1710 [3]3 years ago
6 0
The world's lightest material is carbon aerogel which has a mass of only 0.16 milligram and it is even lighter than aerographite.
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Atomic absorption spectroscopy was used to determine the amount of aluminum in a sample of sunscreen. A blank solution was measu
Pepsi [2]

Answer:

LOD = 0,0177

LOQ = 0,0345

Explanation:

Detection limit (LOD) is defined as the lowest signal which, with a stated probability, can be distinguished from a suitable blank signal. In the same way, quantification limit (LOQ) is defined as the lowest analyte concentration that can be quantitatively detected with a stated accuracy and precision.

There are many formulas but the most used are:

LOD = X + 3σ

LOQ = X + 10σ

Where X is average and σ is standard desvation

For the blanks readings the average X is 0,0105 and σ is 0,0024

Thus:

<em>LOD = 0,0177</em>

<em>LOQ = 0,0345</em>

I hope it helps!

3 0
4 years ago
At room temperature, a melting solid produces a whitish liquid. A laser beam shined through the liquid is unaffected and produce
navik [9.2K]
The answer is a colloid.
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3 years ago
What’s that’s balanced out
stiks02 [169]
Blank 1: nothing (to keep 2 total nitrogen)
blank 2: 3 (to make 6 total hydrogen)
blank 3: 2 (to make 2 total nitrogen and 6 total hydrogen)

hope this helps!! :)
7 0
3 years ago
Write the oxidation number for the following elements: for brainliest answer
ollegr [7]

Explanation:

Here's an oxidation chart to help

..................

6 0
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What are 4 similarities of Metals, Nonmetals, and Metalloids?
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The answer is           


e o i and a



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7 0
3 years ago
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