Concept explainers
(a)
Interpretation : The following operation should be performed and the answer should be reported in correct significant figures.
Concept Introduction : A number can be changed to given significant figure either by round off or by addition of zero. The rules for significant figures are:
- Non-zero digits are always significant.
- Any zeros between two significant digits are always significant.
- A final zero in the decimal portion is also significant.
(b)
Interpretation : The following operation should be performed and the answer should be reported in correct significant figures.
Concept Introduction : A number can be changed to given significant figure either by round off or by addition of zero. The rules for significant figures are:
- Non-zero digits are always significant.
- Any zeros between two significant digits are always significant.
- A final zero in the decimal portion is also significant.
(c)
Interpretation : The following operation should be performed and the answer should be reported in correct significant figures.
Concept Introduction : A number can be changed to given significant figure either by round off or by addition of zero. The rules for significant figures are:
- Non-zero digits are always significant.
- Any zeros between two significant digits are always significant.
- A final zero in the decimal portion is also significant.
(d)
Interpretation : The following operation should be performed and the answer should be reported in correct significant figures.
Concept Introduction : A number can be changed to given significant figure either by round off or by addition of zero. The rules for significant figures are:
- Non-zero digits are always significant.
- Any zeros between two significant digits are always significant.
- A final zero in the decimal portion is also significant.
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Basic Chemistry
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