Why is it important to make measurements using a standard?

1 answer:

7 0

A standard unit of measurement is a quantifiable language that helps everyone understand the association of the object with the measurement. It is expressed in inches, feet, and pounds, in the United States, and centimeters, meters, and kilograms in the metric system.

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What is the total number of atoms in 1.0 mole of

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D. 18 x 10^23 is the total number of atoms in 1.0 mole of CO2

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Are all acids dangerous? Give at least two examples to show what you mean.

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Answer:

Laboratory acids are far too dangerous to taste, but you will have swallowed some dilute weak acids. Acids have a sour taste, like vinegar, which contains ethanoic acid, and lemons, which contain citric acid. These are safe to use in food, but they can still hurt if they get into a cut or into your eyes.

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3 years ago

What would be the major product obtained from hydroboration–oxidation of the following alkenes?

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Answer:

a. 3-methylbutan-2-ol

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Explanation:

For this reaction, we must remember that the hydroboration is an "anti-Markovnikov" reaction. This means that the "OH" will be added at the least substituted carbon of the double bond.

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For 1-methylcyclohexene, the double bond is between carbons 1 and 2. Carbon 1 is attached to two carbons (carbons 6 and 7) and carbon 2 is attached to one carbon (carbon 3). Therefore the "OH" will be added to carbon 2 producing 2-methylcyclohexan-1-ol.

See figure 1

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I'm pretty sure its c

Explanation:

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Why is it important to make measurements using a standard?￼

Why is it important to make measurements using a standard?