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Title: In the ionic compounds LiF, NaCl, KBr, and RbI, the measured cation–anion distances are 2.01 Å (L Post by: hornsbyp101 on Jan 14, 2014 IN Chemistry: The central science, Volume I (12th ed.). Chapter 7 : End of Chapter question 7.38
In the ionic compounds LiF, NaCl, KBr, and RbI, the measured cation–anion distances are 2.01 Å (Li–F), 2.82 Å (Na–Cl), 3.30 Å (K–Br), and 3.67 Å (Rb–I), respectively. 1. Predict the cation–anion distance using the values of ionic radii given in Figure 7.7, on page 257 in the textbook. 2. Calculate the difference between the experimentally measured ion–ion distances and the ones predicted from Figure 7.7. Assuming we have an accuracy of 0.04 Å in the measurement, would you say that the two sets of ion–ion distances are the same or not? Why, or why not? Title: In the ionic compounds LiF, NaCl, KBr, and RbI, the measured cation–anion distances are 2.01 Å (L Post by: padre on Jan 14, 2014 Attachment might help
Title: In the ionic compounds LiF, NaCl, KBr, and RbI, the measured cation–anion distances are 2.01 Å (L Post by: hornsbyp101 on Jan 15, 2014 Thanks, do you know how the answers were developed. Steps in getting the correct answer.
Title: In the ionic compounds LiF, NaCl, KBr, and RbI, the measured cation–anion distances are 2.01 Å (L Post by: padre on Jan 15, 2014 Thanks, do you know how the answers were developed. Steps in getting the correct answer. No, I actually found them on a website and simply copied it here. Title: In the ionic compounds LiF, NaCl, KBr, and RbI, the measured cation–anion distances are 2.01 Å (L Post by: leeds1335 on Oct 23, 2014 When I did out the math, I came to the answers repsectively of 1.85,2.68,3.23,3.59 angstrom. Did I calculate incorrectly?
Title: In the ionic compounds LiF, NaCl, KBr, and RbI, the measured cation–anion distances are 2.01 Å (L Post by: izzywhite on Oct 23, 2014 Thank you man I appreciate it.
Title: In the ionic compounds LiF, NaCl, KBr, and RbI, the measured cation–anion distances are 2.01 Å (L Post by: Classic Rob on Oct 26, 2014 Thank you, says it's .04 accuracy, but I wasn't sure if it applied to the radius or the total distance, if radius then the distances would be "the same"
Title: In the ionic compounds LiF, NaCl, KBr, and RbI, the measured cation–anion distances are 2.01 Å (L Post by: alenabambina on Oct 27, 2014 Very helpful!
Title: Re: In the ionic compounds LiF, NaCl, KBr, and RbI, the measured cation–anion distances are 2.01 Å ( Post by: jrobbins131736 on Jan 25, 2015 How do you calculate the distances?
Title: Re: In the ionic compounds LiF, NaCl, KBr, and RbI, the measured cation–anion distances are 2.01 Å ( Post by: delancy on Nov 7, 2015 To get the answer, using the table you add the values of the cations and anions, not the values of the neutral atoms.
Title: Re: In the ionic compounds LiF, NaCl, KBr, and RbI, the measured cation–anion distances are 2.01 ... Post by: bio_man on Feb 12, 2017 I've updated another topic with the correct answer:
https://biology-forums.com/index.php?topic=558989 Title: Re: In the ionic compounds LiF, NaCl, KBr, and RbI, the measured cation–anion distances are 2.01 ... Post by: CR3531 on Oct 25, 2018 Thanks, that was very helpful
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