Chemistry Final ACS Exam Questions and Correct Answers/ Latest Update / Already Graded

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Chemistry Final ACS Exam Questions and Correct Answers/ Latest Update / Already Graded

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Institution Chemistry ACS

Course Chemistry ACS

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Accuracy? Ans: Closeness of measurements to the TRUE VALUE of what is being measured Precision? Ans: Closeness of a SET of measurements How do you calculate Percent Error? Ans: I experimental-accepted I ____________________ x 100 accepted value Are zeros infront of non-zero digis significant? Ans: Nope! ex: 0.0071 is only 2 sig figs Page | 2 Are zeros at the end of a number and to the right of the decimal significant? Ans: Yep! ex: 9.100 is 4 sig figs Addition/Subtraction in regards to sig figs? Ans: Round numbers to the least number of decimal places Multiplaction/Division in regards to sig figs? Ans: Round answers to the least amount of sig figs # of e- equal Ans: the # of p+ Atomic Mass? Ans: Number of protons in the nucleus (number on the left bottom corner of the chemical symbol) Atomic Mass N

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Chemistry Final ACS Exam Questions and
Correct Answers/ Latest Update / Already
Graded
Accuracy?

Ans: Closeness of measurements to the TRUE VALUE of what is
being measured

Precision?

Ans: Closeness of a SET of measurements

How do you calculate Percent Error?

Ans: I experimental-accepted I
____________________ x 100
accepted value

Are zeros infront of non-zero digis significant?

Ans: Nope!
ex: 0.0071 is only 2 sig figs

All rights reserved © 2025/ 2026 |

, Page |2

Are zeros at the end of a number and to the right of the decimal
significant?

Ans: Yep!
ex: 9.100 is 4 sig figs

Addition/Subtraction in regards to sig figs?

Ans: Round numbers to the least number of decimal places

Multiplaction/Division in regards to sig figs?

Ans: Round answers to the least amount of sig figs

# of e- equal

Ans: the # of p+

Atomic Mass?

Ans: Number of protons in the nucleus (number on the left
bottom corner of the chemical symbol)

Atomic Mass Number?

All rights reserved © 2025/ 2026 |

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Uploaded on: January 23, 2026
Number of pages: 15
Written in: 2025/2026
Type: Exam (elaborations)
Contains: Questions & answers

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