Multiple Choice
What answer should be reported, with the correct number of significant figures, for the following calculation?
[(42.00 − 40.914) ⋅ (25.739 − 25.729)] / [(11.50⋅1.001) + (0.00710 ⋅ 700.)]
1. Matter and Measurements
Significant Figures: In Calculations
Struggling with GOB Chemistry?
Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
Perform the following calculation to the right number of sig figs:
[(1.7 × 106) ÷ (2.63 × 105)] + 6.96
A
13.46
B
13.0
C
13.5
D
14.2
E
4.471
Verified step by step guidance1
Identify the operation order: First, perform the division within the brackets, then add the result to 6.96.
Calculate the division: Divide 1.7 × 10^6 by 2.63 × 10^5. When dividing numbers in scientific notation, divide the coefficients (1.7 ÷ 2.63) and subtract the exponents (6 - 5).
Determine the significant figures for the division: The number of significant figures in the result should be based on the number with the least significant figures in the division, which is 1.7 (2 significant figures).
Add the result of the division to 6.96: Ensure the addition is performed with the correct number of decimal places. The number of decimal places in the result should match the number with the least decimal places, which is 6.96 (2 decimal places).
Round the final result: After performing the addition, round the result to the appropriate number of significant figures or decimal places as determined in the previous steps.
3:11mWatch next
Master Significant Figures Calculations Concept 1 with a bite sized video explanation from Jules
Start learningRelated Videos
Related Practice
Significant Figures: In Calculations practice set
Problem sets built by lead tutorsExpert video explanations