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Slav-nsk [51]
3 years ago
8

3. (1 p) How many oxygen atoms are in 2.5 moles of nitrogen dioxide?

Chemistry
1 answer:
uranmaximum [27]3 years ago
7 0
1.505X10^24 hope this helped :)
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Calculate the mass, in grams, of a single xenon atom (mxe = 131.29 amu ).
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Answer is 2.18017\times10^{-22}gms.

Explanation: To calculate the mass of 1 Xe-atom , we will require atomic mass of Xe which is 131.29amu.

This atomic mass is the mass of 1 mole of 1 Xe-atom. One mole of Xe-atom is 6.022\times10^{23} atoms of Xe. We will use this relation to convert Mass of Xe-atom into grams.

\frac{\text{mass of 1 atom}}{atom}=\frac{\text{mass of 1 mole of atom}}{6.022\times10^{23}atoms}

\text{mass of 1 atom}=\frac{\text{mass of 1 mole of atom}}{6.022\times10^{23}}

\text{mass of 1 Xe-atom}=\frac{131.29}{6.022\times10^{23}}

\text{mass of 1-Xe atom}=21.8017\times10^{-23}gms

                                               =2.18017\times10^{-22}gms


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What are properties or characteristics shared by Metalloids and Nonmetals?
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