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den301095 [7]
4 years ago
7

How many grams of HNO3 it is required to play 8.75gr N2O 4ZN + 10HNO3-4ZN ( NO3 ) 2 + N20 + 5H2O

Chemistry
1 answer:
Y_Kistochka [10]4 years ago
4 0
Molar mass

 HNO₃ = 63.02 g/mol

N₂O = 44.013 g/mol

The balanced equation is :

<span>4 Zn + 10 HNO₃  = 4 Zn(NO₃)₂ + N₂O + 5 H₂O
</span>
10 * 63.02 g HNO₃-----------> 44.013 g N₂O
        ?   HNO₃ -----------------> 8.75 g N₂O

Mass HNO₃ =  8.75 * 10 * 63.02 / 44.013

Mass HNO₃ = 125 g 

hope this helps!
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An element with the general electron configuration for its outermost electrons of ns2np1 would be in which element group?
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Electron configuration is the electron distribution in the molecular and atomic orbital. An element with configuration ns²np¹ will be in the 3A group. Thus, option B is correct.

<h3>What is electronic configuration?</h3>

The electronic configuration has been the arrangement and distribution of the sub-atomic particle, an electron in the atomic shells.

The electronic configuration given is, ns²np¹. Here, there are three valence electrons in the outermost orbit. As it has been known that the number of the valence electron gives the number of the group.

Therefore, option B. 3A group or 13 group is the correct option.

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The given reaction indicate the formation of sodium chloride.

Sodium chloride is an ionic compound. It is formed by the reaction of chlorine and sodium. The type of bond in Cl₂ is covalent. Both chlorine atoms are tightly held together through sharing of electrons. When sodium chloride is formed the covalent between the chlorine atoms are break and it react with sodium . The chlorine toms thus gain the one electron from the sodium atom and became negative ion while sodium by losing its one valance electrons became positive ions. The strong electrostatic forces are develop between them and ionic bond is formed.

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