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spayn [35]
2 years ago
13

1. The following results were obtained in analysis of iron ore for iron: 34.79%, 34.86%, 34.80%, 34.53% and 34.76% Calculate the

Standard Deviation for the analysis ​
Chemistry
1 answer:
lana66690 [7]2 years ago
3 0
<h2>Standart Deviation Steps:</h2>

1. Work out the mean (the simple average of the numbers).

2. Then for each number: subtract the mean and square the result.

3. Then work out the mean of those squared differences.

4. Take the square root of that.

<h2>Result:</h2>

Number of Elements in Array: 5

Series Average: 34,748

Median: 34,795

Smallest Number: 34,53

Biggest Number: 34.86

Standard Deviation: 0.12716131487209

Variance (Standard Deviation): 0.01617

Standard Deviation of the Population: 0.1137365376649

Variance (Standard Deviation of Population): 0.012936

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Answeeeeer:

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What is the difference between atomic mass, relative atomic mass and average atomic mass
vesna_86 [32]

\bold{\huge{\underline{\purple{ Answer }}}}

<u>Difference </u><u>between </u><u>Atomic </u><u>mass</u><u>, </u><u>relative </u><u>atomic </u><u>mass </u><u>and </u><u>average </u><u>atomic </u><u>mass</u><u> </u><u>:</u><u>-</u>

<h3><u>Atomic </u><u>Mass </u><u>:</u><u>-</u></h3>

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  • For isotopes also, the atomic mass is calculated separately . Example :- <u>Carbon </u><u>1</u><u>2</u><u> </u><u>,</u><u> </u><u>carbon </u><u>1</u><u>3</u><u> </u><u>and </u><u>carbon </u><u>1</u><u>4</u><u> </u><u>have </u><u>different </u><u>atomic </u><u>mass</u><u>. </u>
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<h3><u>Relative </u><u>Atomic </u><u>mass </u><u>:</u><u>-</u></h3>

  • Relative atomic mass is mean mass of the atoms of an element which is compared to the 1/12th mass of carbon - 12 .
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<h3><u>Average </u><u>Atomic </u><u>Mass </u><u>:</u><u>-</u></h3>

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5 0
2 years ago
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4 0
3 years ago
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Schach [20]

Answer:  an increase in the concentration of H^+ in aqueous solutions and  is capable of donating one or more H^+

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According to the Lewis concept, an acid is defined as a substance that accepts electron pairs and base is defined as a substance which donates electron pairs.

Thus According to the Arrhenius concept, an acid is a substance that causes an increase in the concentration of H^+ in aqueous solutions and  is capable of donating one or more H^+

5 0
3 years ago
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