Concept explainers
Do the following calculations and use the correct number of significant figures in your answers. Assume all numbers are the results of measurements. In calculations involving both addition/subtraction and multiplication/division, it is usually better to do additions/subtractions first.
a.
b.
c.
d.
e.
(HINT: Do divisions first, then subtract.)
f.
(a)
Interpretation:
The calculations are to be expressed by using correct number of significant figures.
Concept introduction:
Scientific notation is used to write large numbers by shifting the decimal point. It is expressed as the product of a decimal term and
Answer to Problem 1.75E
The result of the given calculation is
Explanation of Solution
The given problem is,
The calculation is as follows:
The lowest number of significant figures in the given problem is four. Therefore, the answer is expressed by using four significant figures. Hence, the result of a given problem is
The result of the given calculation is
(b)
Interpretation:
The calculations are to be expressed by using correct number of significant figures.
Concept introduction:
Scientific notation is used to write large numbers by shifting the decimal point. It is expressed as the product of a decimal term and
Answer to Problem 1.75E
The result of the given calculation is
Explanation of Solution
The given problem is,
The calculation is as follows:
The lowest number of significant figures in the given problem is four. Therefore, the answer is expressed by using four significant figures. The nonsignificant figure which is dropped is
The result of the given calculation is
(c)
Interpretation:
The calculations are to be expressed by using correct number of significant figures.
Concept introduction:
Scientific notation is used to write large numbers by shifting the decimal point. It is expressed as the product of a decimal term and
Answer to Problem 1.75E
The result of the given calculation is
Explanation of Solution
The given problem is,
The calculation is as follows:
The lowest number of significant figures in the problem is four. Therefore, the answer is expressed by using four significant figures. The nonsignificant figure which is dropped is
The result of the given calculation is
(d)
Interpretation:
The calculations are to be expressed by using correct number of significant figures.
Concept introduction:
Scientific notation is used to write large numbers by shifting the decimal point. It is expressed as the product of a decimal term and
Answer to Problem 1.75E
The result of the given calculation is
Explanation of Solution
The given problem is,
The calculation is as follows:
The lowest number of significant figures in the problem is three. Therefore, the answer is expressed by using three significant figures. The nonsignificant figure which is dropped is
The result of the given calculation is
(e)
Interpretation:
The calculations are to be expressed by using correct number of significant figures.
Concept introduction:
Scientific notation is used to write large numbers by shifting the decimal point. It is expressed as the product of a decimal term and
Answer to Problem 1.75E
The result of the given calculation is
Explanation of Solution
The given problem is,
The calculation is as follows:
The lowest number of significant figures in the given problem is three. Therefore, the answer is expressed by using three significant figures. The nonsignificant figure which is dropped is
The result of the given calculation is
(f)
Interpretation:
The calculations are to be expressed by using correct number of significant figures.
Concept introduction:
Scientific notation is used to write large numbers by shifting the decimal point. It is expressed as the product of a decimal term and
Answer to Problem 1.75E
The result of the given calculation is
Explanation of Solution
The given problem is,
The calculation is as follows:
The lowest number of significant figures in the problem is two. Therefore, the answer is expressed by using two significant figures. The nonsignificant figure which is dropped is
The result of the given calculation is
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