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CHEM103 Final Exam With Answers (12 Solved Questions) - Document preview page 1

CHEM103 Final Exam With Answers (12 Solved Questions) - Page 1

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CHEM103 Final Exam With Answers (12 Solved Questions)

CHEM103 Final Exam With Answers ensures you cover all important topics with real past questions.

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CHEM103 Final Exam With Answers (12 Solved Questions) - Page 1 preview imageFinal Exam - Requires Respondus LockDown Browser + WebcamQuestion 1Complete the two problems below:1.Convert 0.0000726 to exponential form and explain your answer.2.Convert 5.82 x 103to ordinary form and explain your answer.Answer:1.Convert 0.0000726 = smaller than 1 = negative exponent, move decimal 5places = 7.26 x 10-52.Convert 5.82 x 103= positive exponent = larger than 1, move decimal 3places = 5820Question 2Do the conversions shown below, showing all work:1.358oK = ?oC2.53oC = ?oF3.158oF = ?oKAnswer:1.358oK - 273 = 85oCoK →oC (make smaller)-2732.53oC x 1.8 + 32 = 127.4oFoC →oF (make larger) x1.8 + 323.158oF - 32 ÷ 1.8 = 70 + 273= 343oKoF →oC →oKQuestion 3Show the calculation of the number of moles in the given amount of thefollowing substances.Report your answerto 3 significant figures.1.12.0 grams of Ca3(PO4)2
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