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Apply the significant figure rules to the final answer. The rules are attached. The final answer will not be 5.73.

Apply the significant figure rules to the final answer. The rules are attached. The final answer will not be 5.73.

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Apply the significant figure rules to the final answer. The rules are attached. The final answer will not be 5.73.

Significant Figure Rules All nonzero digits are significant. Zeros that appear between other nonzero digits are always significant. Zeros that appear in front of all of the nonzero digits are called left-end zeros. Left-end zeros are never significant. Zeros that appear after all nonzero digits are called right-end zeros. Right-end zeros in a number that lacks a decimal point are not significant. Right-end zeros in a number with a decimal point are significant. This is true whether the zeros occur before or after the decimal point. 1 237 has three significant figures. 1.897 has four significant figures. 39,004 has five significant figures. 5.02 has three significant figures. 0.008 has one significant figure. 0.000416 has three significant figures. 140 has two significant figures. 75,210 has four significant figures. 620.0 has four significant figures. 19.000 has five significant figures.
Transcribed Image Text:Significant Figure Rules All nonzero digits are significant. Zeros that appear between other nonzero digits are always significant. Zeros that appear in front of all of the nonzero digits are called left-end zeros. Left-end zeros are never significant. Zeros that appear after all nonzero digits are called right-end zeros. Right-end zeros in a number that lacks a decimal point are not significant. Right-end zeros in a number with a decimal point are significant. This is true whether the zeros occur before or after the decimal point. 1 237 has three significant figures. 1.897 has four significant figures. 39,004 has five significant figures. 5.02 has three significant figures. 0.008 has one significant figure. 0.000416 has three significant figures. 140 has two significant figures. 75,210 has four significant figures. 620.0 has four significant figures. 19.000 has five significant figures.
个 Giveni- Balanced reaction 2KOH (9) +H₂g) 20.0g Calculate liters of H₂ created from the above 2K(s) + 2H₂O(1) mass of K = 20.0₁ reaction Moler masses K = 39·10 g/mol 4₂0= 18.02 g/mol KOH = 56.11 g/mol H₂ = 2.02 g/mol Step 2 2Kcs) + 2H₂O(l) moles mars 20.0g liters { K moler mass K X Imol k 20.0g) 39.10g k = 5.73 H₁₂ 2KOH (9) + H₂(g) = 39·10g/mol } X 5.73 L Imol H₂ 2 2 mol K 2. X 22.4L4₂ Imol H₂ 3.
Transcribed Image Text:个 Giveni- Balanced reaction 2KOH (9) +H₂g) 20.0g Calculate liters of H₂ created from the above 2K(s) + 2H₂O(1) mass of K = 20.0₁ reaction Moler masses K = 39·10 g/mol 4₂0= 18.02 g/mol KOH = 56.11 g/mol H₂ = 2.02 g/mol Step 2 2Kcs) + 2H₂O(l) moles mars 20.0g liters { K moler mass K X Imol k 20.0g) 39.10g k = 5.73 H₁₂ 2KOH (9) + H₂(g) = 39·10g/mol } X 5.73 L Imol H₂ 2 2 mol K 2. X 22.4L4₂ Imol H₂ 3.
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