Nitrogen has five valence electrons. What is the correct Lewis structure for nitrogen?
2 answers:
Answer :
Lewis-dot structure : The number of valence electrons are represented in the Lewis-dot structure by the dot. It shows the bonding between the atoms of a the molecule and it also shows the unpaired electrons present in the molecule.
The number of valence electrons in nitrogen is, 5
The Lewis-dot structure of nitrogen is shown below.
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Answer:
Explanation:
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In this case, since the molecular formula of glycine is C₂H₅NO₂, we realize that the molar mass is 75.07 g/mol; thus, the moles in 130.0 g of glycine are:
Furthermore, we can notice 75.07 grams of glycine contains 14.01 grams of nitrogen; thus, the percent nitrogen turns out:
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Given:
The volume is V = 88 mL
Density, d = 9.77 g/mL
Because mass = volume * density, therefore the mass of the object is
Answer: The mass is 865.2 g or 0.865 kg
The volume is V = 88 mL
Density, d = 9.77 g/mL
Because mass = volume * density, therefore the mass of the object is
Answer: The mass is 865.2 g or 0.865 kg