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Isotope: 35 AMU: 34.968852 % Abundance: 75.77; Isotope: 37 AMU: 36.965903 % Abundance: 24.23 The two isotopes for Cl are chlorine-35 and chlorine-37. What is the average mass for Cl up to 4 decimal places?

Answer 1

Wyatt Atkins

#"Average mass"# #=# #"35.45 amu"#

To put it simply, the weighted average is the average mass.

#(34.968852xx75.77%+36.965903xx24.23%)*"amu"#

#=# #35.4527*"amu"#

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Answer 2

Kai Bowman

The average mass for chlorine (Cl) is approximately 35.4527 atomic mass units (AMU) when rounded to four decimal places.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.