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16 March, 02:37

how many significant figures are in each of the following measurements? A) 0.4004 mLb) 6000gc) 1.000 30 kmd) 400. mm

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  1. 16 March, 03:11
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    a) 0.4004 mL : 4 significant figures

    b) 6000 g : 1 significant figure

    c) 1.00030 km : 6 significant figures

    d) 400. mm : 3 significant figures

    Explanation:

    Significant figures or digits of a number refers to the trapped zeros or the non-zero digits that have meaning and contribute to the precision of the number.

    a) 0.4004 mL : 4 significant figures, zeros between the non-zero digits are the significant digits and leading zeros are not significant.

    b) 6000 g : 1 significant figure, trailing zeros are not considered significant.

    c) 1.00030 km : 6 significant figures, trailing zeros in a decimal number are significant.

    d) 400. mm : 3 significant figures, decimal after the number indicates three significant figures.
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