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3 years ago

In the measurement 5.678 grams, which Is the uncertain digit?

Chemistry

2 answers:

Ainat [17]3 years ago

5 0

8 is the uncertain digit.

NeTakaya3 years ago

4 0

Answer:

<u>The last digit, 8, is the uncertain one.</u>

Explanation:

Every measurement has an uncertainty associated with the instrument used to measure.

The measurement represented by 5.678 grams has 4 significant digits: all the non-zero digits in a measurement are significant (non-zero digits and zeros between non-zero digits are always significant).

When you use a scale to measure the mass of an object, such scale has an appreciation and the last number that you can read is between two possible numbers, i.e. the digit 8 in the given measurement could have been a little bigger or a little smaller, so the real measurement could have been something between 5.677 . . . or 5.678 . . .

The last digit in any measurement is always uncertain.

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Expression for rate law for third observation:

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Dividing 1 from 3, we get:

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In the measurement 5.678 grams, which Is the uncertain digit?​

In the measurement 5.678 grams, which Is the uncertain digit?