The answers to the given calculations are to be expressed with correct units and the correct number of significant figures. Concept introduction: Significant figures are the number of digits that are used to express a calculated quantity. It is very important to report a numerical result with the correct number of significant figures. The rules involved in determining the correct number of significant figures are: For addition and subtraction, the answer should contain same number of decimal places as present in the measurement with the least number of significant digits. In multiplication and division, the number of significant figures in the final product or quotient is determined by the original number that has the smallest number of significant figures. Exact numbers have an infinite number of significant figures. While reporting the final answer round up if the first non-significant digit is 5 or greater than 5 , and round down if it is below 5 .
The answers to the given calculations are to be expressed with correct units and the correct number of significant figures. Concept introduction: Significant figures are the number of digits that are used to express a calculated quantity. It is very important to report a numerical result with the correct number of significant figures. The rules involved in determining the correct number of significant figures are: For addition and subtraction, the answer should contain same number of decimal places as present in the measurement with the least number of significant digits. In multiplication and division, the number of significant figures in the final product or quotient is determined by the original number that has the smallest number of significant figures. Exact numbers have an infinite number of significant figures. While reporting the final answer round up if the first non-significant digit is 5 or greater than 5 , and round down if it is below 5 .
Solution Summary: The author explains that significant figures are the number of digits that are used to express a calculated quantity.
The answers to the given calculations are to be expressed with correct units and the correct number of significant figures.
Concept introduction:
Significant figures are the number of digits that are used to express a calculated quantity. It is very important to report a numerical result with the correct number of significant figures.
The rules involved in determining the correct number of significant figures are:
For addition and subtraction, the answer should contain same number of decimal places as present in the measurement with the least number of significant digits.
In multiplication and division, the number of significant figures in the final product or quotient is determined by the original number that has the smallest number of significant figures.
Exact numbers have an infinite number of significant figures.
While reporting the final answer round up if the first non-significant digit is 5 or greater than 5, and round down if it is below 5.
You are trying to decide if there is a single reagent you can add that will make the following synthesis possible without any other major side products:
xi
1. ☑
2. H₂O
хе
i
Draw the missing reagent X you think will make this synthesis work in the drawing area below.
If there is no reagent that will make your desired product in good yield or without complications, just check the box under the drawing area and leave it blank.
Click and drag to start drawing a
structure.
There is no reagent that will make this synthesis work without complications.
: ☐
S
☐
Predict the major products of this organic reaction:
H
OH
1. LiAlH4
2. H₂O
?
Note: be sure you use dash and wedge bonds when necessary, for example to distinguish between major products with different stereochemistry.
Click and drag to start drawing a
structure.
G
C
टे
For each reaction below, decide if the first stable organic product that forms in solution will create a new C-C bond, and check the appropriate box.
Next, for each reaction to which you answered "Yes" to in the table, draw this product in the drawing area below.
Note for advanced students: for this problem, don't worry if you think this product will continue to react under the current conditions - just focus on the first
stable product you expect to form in solution.
NH2
CI
MgCl
?
Will the first product that forms in this reaction
create a new CC bond?
Yes
No
MgBr
?
Will the first product that forms in this reaction
create a new CC bond?
Yes
No
G
टे