what is significant figures in chemistry?
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The significant figures (also known as the significant digits) of a number are digits that carry meaning contributing to its measurement resolution. This includes all digits except:[1]
All leading zeros;Trailing zeros when they are merely placeholders to indicate the scale of the number (exact rules are explained at identifying significant figures); andSpurious digits introduced, for example, by calculations carried out to greater precision than that of the original data, or measurements reported to a greater precision than the equipment supports.
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All leading zeros;Trailing zeros when they are merely placeholders to indicate the scale of the number (exact rules are explained at identifying significant figures); andSpurious digits introduced, for example, by calculations carried out to greater precision than that of the original data, or measurements reported to a greater precision than the equipment supports.
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