Answer:
156 g
Explanation:
Let's consider the following reaction.
2 NaN₃(s) → 2 Na(s) + 3 N₂
(g)
We can find the moles of N₂ using the ideal gas equation.
P × V = n × R × T
1.50 atm × 60.0 L = n × (0.08206 atm.L/mol.K) × 305 K
n = 3.60 mol
The molar ratio of N₂ to NaN₃ is 3:2. The moles of NaN₃ are:
3.60 mol N₂ × (2 mol NaN₃ / 3 mol N₂) = 2.40 mol NaN₃
The molar mass of NaN₃ is 65.01 g/mol. The mass of NaN₃ is:
2.40 mol × 65.01 g/mol = 156 g
Answer:
True
Three-Dimensional Lattice
The unique arrangement of atoms or molecules within a crystalline solid is referred to as the crystal structure of that material. ... The crystal lattice represents the three-dimensional structure of the crystal's atomic/molecular components.
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Answer:
A. Generally ionic compounds are formed metal and non metal elements since they forms opposite charged ions due to difference in their Electronegativity values.
NaCl, MgCl2, Ca(OH)2 etc are ionic compounds.
B. Generally transition elements (D elements) forms cations with different charges or simply they exist in different oxidation states due to availability of empty d orbitals.
Examples are Iron exsits as Fe+2 and Fe+3
Mn exists as Mn+2 , Mn+4, Mn+6 ,Mn+7 etc.
High-strength bolts are used in the construction of many steelstructures. For a 1-in.-nominal-diameter bolt the required minimumbolt tension is 47.25 kips. Assuming the coefficient of staticfriction to be 0.35, determine the required couple that should beapplied to the bolt and nut. The mean diameter of the thread is0.94 in., and the lead id 0.125 in. Neglect friction between thenut and the washer, and assume the bolt to be square-threaded.
In an electrically neutral Atom of element number 44, or atomic number 44, there would be also 44 electrons, as the net charge of the subatomic particles, protons and electrons would be zero.
