I am having a bit of trouble with significant figures and rounding. In a question such as the one below, would the sig fig I put in my answer be correct?How many moles are present in 3.44 g CoCl2 ꞏ 6H2O? = (Which sig fig amount is correct-->) .0217 moles or .021 molesThe whole answer was 0.02177904, would I round this answer to the 3rd sig fig? So, is the correct answer actually .022?

Significant figures are basically the measure of uncertainty in measurement.In the answer,digits are…

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Chemistry: Principles and Practice

3rd Edition

ISBN:9780534420123

Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer

Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer

Chapter3: Equation, The Mole, And Chemical Formulas

Section: Chapter Questions

Problem 3.85QE: A chemist prepared a compound that she thought had the formula FeI3. When the compound was analyzed,...

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I am having a bit of trouble with significant figures and rounding. In a question such as the one below, would the sig fig I put in my answer be correct?

How many moles are present in 3.44 g CoCl2 ꞏ 6H2O?

= (Which sig fig amount is correct-->) .0217 moles or .021 moles

The whole answer was 0.02177904, would I round this answer to the 3rd sig fig? So, is the correct answer actually .022?

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