Scientific measurement (1-4 notes)

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Chemistry

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8 Terms

1
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<p>Qualitative measurements </p>

Qualitative measurements

Measurements that are descriptive but not true measurements (examples include hot and large)

<p>Measurements that are descriptive but not true measurements (examples include hot and large)</p>
2
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<p>Quantitative measurements </p>

Quantitative measurements

Measurements that are descriptive with numbers and units

<p>Measurements that are descriptive with numbers and units </p>
3
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<p>Accuracy </p>

Accuracy

How close the measurement is to the actual value (this can be determined with only one measurement)

<p>How close the measurement is to the actual value (this can be determined with only one measurement)</p>
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<p>Precision </p>

Precision

How well a certain measurement can be repeated (multiple measurements are necessary to determine this)

<p>How well a certain measurement can be repeated (multiple measurements are necessary to determine this)</p>
5
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<p>Scientific notation </p>

Scientific notation

A convenient way to express very large and very small numbers (numbers are expressed as the product of a coefficient and 10 expressed to a power)

<p>A convenient way to express very large and very small numbers (numbers are expressed as the product of a coefficient and 10 expressed to a power)</p>
6
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<p>Significant figures (sig figs)</p>

Significant figures (sig figs)

The meaningful digits in a measurement

<p>The meaningful digits in a measurement</p>
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<p>Density </p>

Density

The ratio of mass to volume for a sample of matter

<p>The ratio of mass to volume for a sample of matter</p>
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<p>Density formula </p>

Density formula

Density = Mass / Volume

<p>Density = Mass / Volume </p>