(a) Interpretation: The 3984 .6 number should be expressed in four significant figures. Concept introduction: All nonzero digits are significant and zeros are significant, if preceding the decimal point, or following the decimal point and preceding the first nonzero digit, are not significant.The case of terminal zeros that precede the decimal point in quantitiesgreater than one is ambiguous. Therule of rounding off is to increase the final digit by one unit if the digitdropped is 5, 6, 7, 8, or 9 and to leave the final digit unchanged if the digitdropped is 0, 1, 2, 3, or 4.
(a) Interpretation: The 3984 .6 number should be expressed in four significant figures. Concept introduction: All nonzero digits are significant and zeros are significant, if preceding the decimal point, or following the decimal point and preceding the first nonzero digit, are not significant.The case of terminal zeros that precede the decimal point in quantitiesgreater than one is ambiguous. Therule of rounding off is to increase the final digit by one unit if the digitdropped is 5, 6, 7, 8, or 9 and to leave the final digit unchanged if the digitdropped is 0, 1, 2, 3, or 4.
Solution Summary: The author explains that the 3984 .6 number should be expressed in four significant figures. The case of terminal zeros that precede the decimal point in quantities greater than one is ambigu
The 3984.6 number should be expressed in four significant figures.
Concept introduction:
All nonzero digits are significant and zeros are significant, if preceding the decimal point, or following the decimal point and preceding the first nonzero digit, are not significant.The case of terminal zeros that precede the decimal point in quantitiesgreater than one is ambiguous.
Therule of rounding off is to increase the final digit by one unit if the digitdropped is 5, 6, 7, 8, or 9 and to leave the final digit unchanged if the digitdropped is 0, 1, 2, 3, or 4.
Interpretation Introduction
(b)
Interpretation:
The number 422.04 should be expressed in four significant figures.
Concept introduction:
All nonzero digits are significant and zeros are significant, if preceding the decimal point, or following the decimal point and preceding the first nonzero digit, are not significant. The case of terminal zeros that precede the decimal point in quantitiesgreater than one is ambiguous.
Therule of rounding off is to increase the final digit by one unit if the digitdropped is 5, 6, 7, 8, or 9 and to leave the final digit unchanged if the digitdropped is 0, 1, 2, 3, or 4.
Interpretation Introduction
(c)
Interpretation:
The number 186,000 should be expressed in four significant figures.
Concept introduction:
All nonzero digits are significant and zeros are significant, if preceding the decimal point, or following the decimal point and preceding the first nonzero digit, are not significant. The case of terminal zeros that precede the decimal point in quantitiesgreater than one is ambiguous.
Therule of rounding off is to increase the final digit by one unit if the digitdropped is 5, 6, 7, 8, or 9 and to leave the final digit unchanged if the digitdropped is 0, 1, 2, 3, or 4.
Interpretation Introduction
(d)
Interpretation:
The number 33900 should be expressed in four significant figures.
Concept introduction:
All nonzero digits are significant and zeros are significant, if preceding the decimal point, or following the decimal point and preceding the first nonzero digit, are not significant. The case of terminal zeros that precede the decimal point in quantitiesgreater than one is ambiguous.
Therule of rounding off is to increase the final digit by one unit if the digitdropped is 5, 6, 7, 8, or 9 and to leave the final digit unchanged if the digitdropped is 0, 1, 2, 3, or 4.
Interpretation Introduction
(e)
Interpretation:
The number 6.321×104 should be expressed in to four significant figures.
Concept introduction:
All nonzero digits are significant and zeros are significant, if preceding the decimal point, or following the decimal point and preceding the first nonzero digit, are not significant. The case of terminal zeros that precede the decimal point in quantitiesgreater than one is ambiguous.
Therule of rounding off is to increase the final digit by one unit if the digitdropped is 5, 6, 7, 8, or 9 and to leave the final digit unchanged if the digitdropped is 0, 1, 2, 3, or 4.
Interpretation Introduction
(f)
Interpretation:
The number 5.0472×10-4 should be expressed in to four significant figures.
Concept introduction:
All nonzero digits are significant and zeros are significant, if preceding the decimal point, or following the decimal point and preceding the first nonzero digit, are not significant. The case of terminal zeros that precede the decimal point in quantitiesgreater than one is ambiguous.
Therule of rounding off is to increase the final digit by one unit if the digitdropped is 5, 6, 7, 8, or 9 and to leave the final digit unchanged if the digitdropped is 0, 1, 2, 3, or 4.
Can I please get help with this? And can I please the lowest possible significant number?
What is the molar mass of a gas that takes three times longer to effuse than helium?
First image: I have to show the mecanism (with arows and structures) of the reaction at the bottom. Also I have to show by mecanism why the reaction wouldn't work if the alcohol was primary
Second image: I have to show the mecanism (with arrows and structures) for the reaction on the left, where the alcohol A is added fast in one portion
its not an exam