Question

what is the answer expressed with the correct significant digits for: 7.77 g ÷ 2.3 cm³
3.38 g/cm³
3.37826 g/cm³
3.378 g/cm³
3.4 g/cm³

Explanation:

Step1: Perform the division

$7.77\div2.3 = 3.37826087$

Step2: Determine significant - digits

The number 2.3 has 2 significant digits. In division, the result should have the same number of significant digits as the number with the fewest significant digits in the values used in the calculation. So, we round 3.37826087 to 2 significant digits.

Step3: Round the result

Rounding 3.37826087 to 2 significant digits gives 3.4.

Answer:

3.4 g/cm³