Question

Perform the calculation (225.7 g - 79.33 g + 0.313 g) × 2.2 g and round the result to the correct number of significant digits.

Answer 1

To perform the calculation (225.7 g - 79.33 g + 0.313 g) × 2.2 g and round the result to the correct number of significant digits, add the values inside the parentheses, multiply the sum by 2.2 g, and round the result to the correct number of significant digits.

Step-by-step explanation:

To perform the calculation (225.7 g - 79.33 g + 0.313 g) × 2.2 g and round the result to the correct number of significant digits, follow these steps:

1. Add the values inside the parentheses: 225.7 g - 79.33 g + 0.313 g = 146.687 g
2. Multiply the sum by 2.2 g: 146.687 g × 2.2 g = 322.7114 g
3. Round the result to the correct number of significant digits. Since the least precise value in the calculation has 3 significant digits (0.313 g), the final result should be rounded to 3 significant digits.

Therefore, the rounded result of the calculation is 322.711 g.