The number of atoms in 0.1 moles of a triatomic gas is (NA = 6.02 x 1023 mol-1)
6.026 x 1022
1.806 x 1023
3.600 x 1023
1.800 x 1022
B.
1.806 x 1023
Number of atoms = number of moles x NA x atomicity
= 0.1 x 6.02 x 1023 x 3
= 1.806 x 1023 atoms
Express the Avogadro's number (6·023×1023) upto three significant figures.
What is the result of (5.472 - 1.12) to the appropriate number of signficant figures?
Express 0.0468 in scientific notation.
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The popular unit of pressure is atmosphere, how is it related to pascal?
What are SI units of the following:
(i) Density
(ii) Molarity
(iii) Energy
(iv) Temperature ?
Out of 5.00 g and 5.0 g which one is more accurate and why?
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