Questions: Virtual Lab 0 - ALEKS Tutorial ALEKS - Leah Pons - Knowledge - www-awu.aleks.com/alekscgi/x/lsl.exe/1ou-IgNsIkr7j8P3jH Initial Knowledge Check Question 1 Count the significant digits in each of these measurements: measurement number of significant digits ------ 5.5 × 10^-1 mL 17700 kg 0.006700 J -6.0 × 10^-3 kJ / mol IDon't Know Submit Feels colder Now Search

Count the significant digits in the measurement \(5.5 \times 10^{-1} \mathrm{~mL}\).

Identify significant digits.

In the number \(5.5\), both digits are non-zero, making them significant. The scientific notation does not affect the count of significant digits.

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Count the significant digits in the measurement \(17700 . \mathrm{kg}\).

Identify significant digits.

The number \(17700.\) has a decimal point, indicating that the trailing zeros are significant. Therefore, all five digits are significant.

\(\boxed{5}\)

Count the significant digits in the measurement \(0.006700 \mathrm{~J}\).

Identify significant digits.

The leading zeros are not significant. The digits \(6700\) are significant, including the trailing zero because it is after a decimal point.

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Count the significant digits in the measurement \(-6.0 \times 10^{-3} \mathrm{~kJ} / \mathrm{mol}\).

Identify significant digits.

In the number \(6.0\), both digits are significant. The scientific notation and the negative sign do not affect the count of significant digits.

\(\boxed{2}\)

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\(\boxed{5}\)
\(\boxed{4}\)
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