5/27/2023 0 Comments Average atomic massAdd paper clips to the balance pan until it balances.Set the 3-beam balance equal to this mass.Multiply your average mass for one size of paper clip by 100.In order to check your accuracy, and if necessary update your average mass, follow this procedure:.Repeat this procedure with the other size of paper clip.Calculate the average mass of that paper clip.Find the mass of 30 paper clips of one size.Similar to the process used by chemists to find atomic Finally, you will calculate the percent error in You will then use this information to count In this section of the lab activity you will establish the To visually demonstrate the meaning of the termĪverage atomic mass of elements due to the masses and These values will be used to estimate the Of a several types of items too small to weigh To determine equivalent of the atomic mass Predict and then measure the resulting average atomic mass. Representing different percent abundances and students Heavier and lighter isotopes in several schemes In addition, the concepts (mathematical and chemical) thatĪre needed for a full understanding of average atomic massĪre explored using an extension of the idea of finding theĪtomic mass. Measure the mass of paper clips by weighing a groupĪnd then dividing by the total number of items. Similar to that used by chemists with atoms, students Also, the lab balancesĪre typically not sensitive enough to accurately weigh such Less than a gram and repeated measurements are unlikely to Individual paper clips weigh significantly
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