Secure Cloud Access x MM Mail Keith Johnson o x MC chegg Study I Guided Sc x VC

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Secure Cloud Access x MM Mail Keith Johnson o x MC chegg Study I Guided Sc x VC A Certain Analytical Meet x y Indiana State University x C O sapling learning.com 3224074 Vibiscm A complete guide to Kids Rides & Rides fo tr Print Calculator Periodic Table Question 1 of 6 Map EA Sapling Learning A certain analytical method for the determination of lead yields weights for lead that are low by 0.3g the relative emor (pay attention to sig ngs!) caused by this irthe measured weight of lead in the sample is a) 707.2 g lead Number relative error b) 3376 g lead Number relative error c) 41.9 g lead Number relative error Previous Give Up & View solution 2 Check Answer Next Exit 2017 Sapling Learning Inc. about us careers partners privacy policy terms ofuse contact us l help twinsofcosplay her bookmark Available From: 2/3/2017 10:00 AM 2/13/2017 12:00 PM Due Date: Points Possible Grade Category: Default Description: Policies SFW Custom You can check your answers. You can view solutions when you complete or give up on any question. You can keep trying to answer each question until you get it right or give up. You lose 10% of the points available to each answer in your question for each incorrect attemp at that answer. O eTextbook O Help With This Topic OWeb Help & Videos OTechnical Support and Bug Reports

Explanation / Answer

percent relative error = Absolute error/actual value * 100%

a) measured value = 707.2 g lead, so actual weight = (707.2+0.3 g) = 707.5 g

Hence, percent relative error = 0.3 g/ 707.5 g * 100 % =4*10-2

b) measured value = 337.6 g lead, so actual weight = (337.6 + 0.3 g) = 337.9 g

Hence, percent relative error = 0.3 g/ 337.9 g * 100 % =0.1%

c) measured value = 41.9 g lead, so actual weight = (41.9 + 0.3 g) = 42.2 g

Hence, percent relative error = 0.3 g/ 42.2 g * 100 % = 0.7%

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