185631
The number of significant figures in \(6.02 \times {10^{23}}\) is
1 \(23\)
2 \(3\)
3 \(4\)
4 \(26\)
Explanation:
When numbers are written in scientific notation, then the number of digits between \(1\) and \(10\) gives the number of significant figures. Thus, the number \(6.02 \times 10^{23}\) contains \(3\) significant figures. All the three digits \((6,0\) and \(2)\) are significant.
Some Basic Concepts of Chemistry
185632
The prefix zepto stands for
1 \({10^9}\)
2 \({10^{ - 12}}\)
3 \({10^{ - 15}}\)
4 \({10^{ - 21}}\)
Explanation:
Zepto is a unit prefix in the metric system denoting a factor of \(10^{-21}\). \(1\) zepto \( = {10^{ - 21}}\)
Some Basic Concepts of Chemistry
185736
The total number of gm-molecules of \(S{O_2}C{l_2}\) in \(13.5\,g\) of sulphuryl chloride is
185775
Hydrochloric acid solutions \(A\) and \( B\) have concentration of \(0.5 \,N\) and \(0.1 \,N\) respectively. The volume of solutions \(A\) and \(B\) required to make \(2\) litres of \(0.2\, N\) hydrochloric are
185937
A gas is found to contain \(2.8\,g\) nitrogen and \(3.2\,g\) oxygen, simplest formula of the compound is
1 \(N_2O\)
2 \(NO\)
3 \(N_2O_3\)
4 \(NO_2\)
Explanation:
Element Mass Moles Simple ratio \(N\) \(2.8\) \(\frac {2.8}{14}=0.2=1\) \(O\) \(3.2\,g\) \(\frac {3.2}{16}=0.2=1\) Simplest formula of the compound \(=NO\)
185631
The number of significant figures in \(6.02 \times {10^{23}}\) is
1 \(23\)
2 \(3\)
3 \(4\)
4 \(26\)
Explanation:
When numbers are written in scientific notation, then the number of digits between \(1\) and \(10\) gives the number of significant figures. Thus, the number \(6.02 \times 10^{23}\) contains \(3\) significant figures. All the three digits \((6,0\) and \(2)\) are significant.
Some Basic Concepts of Chemistry
185632
The prefix zepto stands for
1 \({10^9}\)
2 \({10^{ - 12}}\)
3 \({10^{ - 15}}\)
4 \({10^{ - 21}}\)
Explanation:
Zepto is a unit prefix in the metric system denoting a factor of \(10^{-21}\). \(1\) zepto \( = {10^{ - 21}}\)
Some Basic Concepts of Chemistry
185736
The total number of gm-molecules of \(S{O_2}C{l_2}\) in \(13.5\,g\) of sulphuryl chloride is
185775
Hydrochloric acid solutions \(A\) and \( B\) have concentration of \(0.5 \,N\) and \(0.1 \,N\) respectively. The volume of solutions \(A\) and \(B\) required to make \(2\) litres of \(0.2\, N\) hydrochloric are
185937
A gas is found to contain \(2.8\,g\) nitrogen and \(3.2\,g\) oxygen, simplest formula of the compound is
1 \(N_2O\)
2 \(NO\)
3 \(N_2O_3\)
4 \(NO_2\)
Explanation:
Element Mass Moles Simple ratio \(N\) \(2.8\) \(\frac {2.8}{14}=0.2=1\) \(O\) \(3.2\,g\) \(\frac {3.2}{16}=0.2=1\) Simplest formula of the compound \(=NO\)
185631
The number of significant figures in \(6.02 \times {10^{23}}\) is
1 \(23\)
2 \(3\)
3 \(4\)
4 \(26\)
Explanation:
When numbers are written in scientific notation, then the number of digits between \(1\) and \(10\) gives the number of significant figures. Thus, the number \(6.02 \times 10^{23}\) contains \(3\) significant figures. All the three digits \((6,0\) and \(2)\) are significant.
Some Basic Concepts of Chemistry
185632
The prefix zepto stands for
1 \({10^9}\)
2 \({10^{ - 12}}\)
3 \({10^{ - 15}}\)
4 \({10^{ - 21}}\)
Explanation:
Zepto is a unit prefix in the metric system denoting a factor of \(10^{-21}\). \(1\) zepto \( = {10^{ - 21}}\)
Some Basic Concepts of Chemistry
185736
The total number of gm-molecules of \(S{O_2}C{l_2}\) in \(13.5\,g\) of sulphuryl chloride is
185775
Hydrochloric acid solutions \(A\) and \( B\) have concentration of \(0.5 \,N\) and \(0.1 \,N\) respectively. The volume of solutions \(A\) and \(B\) required to make \(2\) litres of \(0.2\, N\) hydrochloric are
185937
A gas is found to contain \(2.8\,g\) nitrogen and \(3.2\,g\) oxygen, simplest formula of the compound is
1 \(N_2O\)
2 \(NO\)
3 \(N_2O_3\)
4 \(NO_2\)
Explanation:
Element Mass Moles Simple ratio \(N\) \(2.8\) \(\frac {2.8}{14}=0.2=1\) \(O\) \(3.2\,g\) \(\frac {3.2}{16}=0.2=1\) Simplest formula of the compound \(=NO\)
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Some Basic Concepts of Chemistry
185631
The number of significant figures in \(6.02 \times {10^{23}}\) is
1 \(23\)
2 \(3\)
3 \(4\)
4 \(26\)
Explanation:
When numbers are written in scientific notation, then the number of digits between \(1\) and \(10\) gives the number of significant figures. Thus, the number \(6.02 \times 10^{23}\) contains \(3\) significant figures. All the three digits \((6,0\) and \(2)\) are significant.
Some Basic Concepts of Chemistry
185632
The prefix zepto stands for
1 \({10^9}\)
2 \({10^{ - 12}}\)
3 \({10^{ - 15}}\)
4 \({10^{ - 21}}\)
Explanation:
Zepto is a unit prefix in the metric system denoting a factor of \(10^{-21}\). \(1\) zepto \( = {10^{ - 21}}\)
Some Basic Concepts of Chemistry
185736
The total number of gm-molecules of \(S{O_2}C{l_2}\) in \(13.5\,g\) of sulphuryl chloride is
185775
Hydrochloric acid solutions \(A\) and \( B\) have concentration of \(0.5 \,N\) and \(0.1 \,N\) respectively. The volume of solutions \(A\) and \(B\) required to make \(2\) litres of \(0.2\, N\) hydrochloric are
185937
A gas is found to contain \(2.8\,g\) nitrogen and \(3.2\,g\) oxygen, simplest formula of the compound is
1 \(N_2O\)
2 \(NO\)
3 \(N_2O_3\)
4 \(NO_2\)
Explanation:
Element Mass Moles Simple ratio \(N\) \(2.8\) \(\frac {2.8}{14}=0.2=1\) \(O\) \(3.2\,g\) \(\frac {3.2}{16}=0.2=1\) Simplest formula of the compound \(=NO\)
185631
The number of significant figures in \(6.02 \times {10^{23}}\) is
1 \(23\)
2 \(3\)
3 \(4\)
4 \(26\)
Explanation:
When numbers are written in scientific notation, then the number of digits between \(1\) and \(10\) gives the number of significant figures. Thus, the number \(6.02 \times 10^{23}\) contains \(3\) significant figures. All the three digits \((6,0\) and \(2)\) are significant.
Some Basic Concepts of Chemistry
185632
The prefix zepto stands for
1 \({10^9}\)
2 \({10^{ - 12}}\)
3 \({10^{ - 15}}\)
4 \({10^{ - 21}}\)
Explanation:
Zepto is a unit prefix in the metric system denoting a factor of \(10^{-21}\). \(1\) zepto \( = {10^{ - 21}}\)
Some Basic Concepts of Chemistry
185736
The total number of gm-molecules of \(S{O_2}C{l_2}\) in \(13.5\,g\) of sulphuryl chloride is
185775
Hydrochloric acid solutions \(A\) and \( B\) have concentration of \(0.5 \,N\) and \(0.1 \,N\) respectively. The volume of solutions \(A\) and \(B\) required to make \(2\) litres of \(0.2\, N\) hydrochloric are
185937
A gas is found to contain \(2.8\,g\) nitrogen and \(3.2\,g\) oxygen, simplest formula of the compound is
1 \(N_2O\)
2 \(NO\)
3 \(N_2O_3\)
4 \(NO_2\)
Explanation:
Element Mass Moles Simple ratio \(N\) \(2.8\) \(\frac {2.8}{14}=0.2=1\) \(O\) \(3.2\,g\) \(\frac {3.2}{16}=0.2=1\) Simplest formula of the compound \(=NO\)