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What is the result of the following calculation to the correct number of significant figures?
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Chemistry
- 3. Solve the following problems, stating answers to the proper number of significant figures:(a) 12.62 + 1.5 + 0.25 = (b) (2.25 x 103) (4.80 x 104) = (c) 10.4 + 3.75 (1.5 x 104) =arrow_forwardConsider the following mathematical expression: (2.4 × 10³) (2.24 × (2.54)³) 0.7217 x = X The answer X should be expressed as significant figures.arrow_forwardQuestion 1: Determine whether the answer to each calculation has the correct number of significant figures. If not, correct it: 1A) 89.763 + 22.4581 = 3.997 1B) 4.32x1012 ÷ 3.1x104 = 1.4x1016 Question 2: Perform this calculation to the correct number of significant figures 9443 + 45 – 9.9 x 8.1x106 Question 3: Perform the following conversions: 3A) 78.3 cm to inches 3B) 22.5 lbs. to micrograms 3C) 396 in to L 4A) A new penny has a mass of 2.49g and a volume of 0.349cm³. Is the penny pure copper?arrow_forward
- 3- Perform the following calculation and report the result to the correct number of significant figures: [29.3 – 23.1] / 5.201] = (6.2) / (5.201) = а) 1.2 b) 1.19 c) 1.1921 d) 1.192 e) 1arrow_forwardI think I did a calculation wrong but I am having trouble understanding significant figures. In this problem, I am calculation the density of water from my previous calculations mass= 7.359g and volume=7.8mL. So I then divided 7.359g by 7.8mL to find density and got (.9434615385) on my calculator which I then turned into (.94) because I believe there should be 2 significant figures. Is (.94) correct or should 1.4 be the final answer?arrow_forwardThe quadratic formula is used to solve for x in equations taking the form of a quadratic equation, ax² + bx + c = 0. -b ± yb? – 4ac quadratic formula: X = 2a Solve for x in the following expression using the quadratic formula. Зx? + 23х —8.5 — 0 Use at least three significant figures in each answer. X = and x =arrow_forward
- The quadratic formula is used to solve for x in equations taking the form of a quadratic equation, ax? + bx + c = 0. -b ± b2 – 4ac quadratic formula: x = 2a Solve for x in the following expression using the quadratic formula. 2x2 + 21x – 7.1 = 0 Use at least three significant figures in each answer. x = and x =arrow_forwardRound each answer to the correct number of significant figures. 9 +2.8 - 0.135+10.8=22.265 My previous answer was 22.3 it was incorrected.arrow_forwardWhat answer should be reported, with the correct number of significant figures, for the following calculation? (433.621 - 333.90) × 11.900 A) 1.19 × 103 B) 1.187 x 103 C) 1.1868 × 103 D) 1.18680 × 103 E) 1.186799 × 10³ A E B.arrow_forward
- Perform the following calculation to the correct number of significant figures: ( (5.01 × 10^5) ÷ (7.8 × 10^2)arrow_forwardQuestion 1 Give the correct number of significant figures for 2500, 2500. ,0.0043, 0.06050 Question 2 Give the answer to the correct number of significant figures: 7964 + 86.94 + 760 =? Question 3 Give the answer to the correct number of significant figures: 4.596 - 2.81 =? Question 4 Give the answer to the correct number of significant figures: (4.58 x 10) x (4.3198 x 10-19) =? Question 5 Give the answer in scientific notation and to the correct number of significant figures: (7860) / (0.00001)=?arrow_forwardGive the answers with the correct number of significant figures: a) 41.84 x 100.62 x (15.227 - 15.134) b) [ (1.057 x 104) x (1.228 x 10-3)] / [2.65 + (4.3 x 10-2) ] Please explain step by step.arrow_forward
- Chemistry: Matter and ChangeChemistryISBN:9780078746376Author:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl WistromPublisher:Glencoe/McGraw-Hill School Pub CoGeneral Chemistry - Standalone book (MindTap Cour...ChemistryISBN:9781305580343Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; DarrellPublisher:Cengage Learning