How many atoms of oxygen are in 4.00 moles of N2O5

Chemistry

1 answer:

SVETLANKA909090 [29]3 years ago

8 0

Answer:

there are 20 oxygen atoms in 4.00 moles of Dinitrogen pentoxide

Explanation:

there are 2 atoms in an oxygen molecule , so each oxygen molecules has at least 2. Dinitrogen pentoxide is N2O5, which has 7 atoms, 2 nitrogen and 5 oxygen. 1 molecule of N2O5 has 5 oxygen atoms, so 4 of then would be 20

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At what temperature would 0.500 moles of gas particles stored in a 100.0 mL container reach a pressure of 15.0 atm?

MArishka [77]

Hey there!

<span>In this case, the equation of Clapeyron is used :

R = 0.082

Volume in liters :

100.0 mL / 1000 => 0.1 L
</span>
P * V = n * R * T

15.0 * 0.1 = 0.500 * 0.082 * T

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T = 1.5 / 0.041

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Answer C

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3 years ago

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3 years ago

1. Mg2+ and Ca2+ are in the same group on the periodic table. In terms of electronic

finlep [7]

Answer:

Se detailed explanation.

Explanation:

Hello,

In this case, since both magnesium and calcium ions are in group IIA, we can review the following similar properties:

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- Their electron configurations are:

$Ca^{20}=1s^2,2s^2,2p^6,3s^3,3p^6,4s^2\\\\Mg^{12}=1s^2,2s^2,2p^6,3s^2$