Chemistry

Question

An aluminum sample has a mass of 80.1 g and a density of 2.70g/cm3 . According to the date to what number of significant figures should the calculate volume of the aluminum sample be expressed?

2 Answer

  • 3 Sig figs because both measurements have three sig figs. In a lab setting, you would round to your least precise measurement. So its useless to use a meter stick and a high precision scale to take measurement because you have to use the amount of Sig figs for your least precise tool
  • 80.1 g* (1 cm^(3)/ 2.70 g)= 29.666666... cm^(3).

    The calculated volume should have 3 significant figures, so the final answer is 2.97*10^(1) cm^(3)

    Hope this helps~
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