The balanced equation for the reaction is as follows
2Na + Cl₂ --> 2NaCl
first we need to find the limiting reactant from the 2 reactants in the reaction
stoichiometry of Na to Cl₂ is 2:1
number of Na moles - 133.0 g / 23 g/mol = 5.783 mol
at STP, molar volume is where 1 mol of any gas occupies a volume of 22.4 L
if 22.4 L occupied by 1 mol
then 33.0 L is occupied by 33.0 L / 22.4 L/mol = 1.47 mol
therefore number of Cl₂ moles present - 1.47 mol
If Cl₂ is the limiting reactant
1 mol of Cl₂ reacts with 2 mol of NaCl
therefore 1.47 mol of Cl₂ reacts with - 2 x 1.47 = 2.94 mol of Na
but 5.783 mol of Na is present which means Na is in excess and Cl₂ is the limiting reactant
NaCl formed depends on amount of Cl₂ present
stoichiometry of Cl₂ to NaCl is 1:2
number of NaCl moles formed - 2 x 1.47 mol = 2.94 mol of NaCl
mass of NaCl formed - 2.94 mol x 58.5 g/mol = 172 g
172 g of NaCl is formed
<span>molecular weight of C4H10 is = 58.1 grams
moles of butane = </span>
= 0.0258
Multiply the number of moles by Avogadro's number. This will let you obtain the number of butane molecules:
<span>0.0258 x 6.023 x 10^{23} molecules of butane = 1.5538 * 10^22 molecules
of butane
</span>
<span>Now multiply this number by four (due to four carbon atoms per butane molecule) to obtain the answer:
</span>
so, no. of carbon atoms = 4 x 1.5538 x 10^22 = 6.21 x 10^22 atoms
Energy is related to Wavelength as,
E = h c / λ -------- (1)
As,
h = 6.626 × 10⁻³⁴ Js
c = 2.99 × 10⁸ ms⁻¹
λ = 12.5 nm = 1.25 × 10⁻⁸ m
Putting values in eq. 1,
E = (6.626 × 10⁻³⁴ Js × 2.99 × 10⁸ ms⁻¹) ÷ 1.25 × 10⁻⁸ m
E = 1.585 × 10⁻¹⁷ J
E = 1.585 × 10⁻²⁰ kJ × 6.022 × 10²³
E = 9544.87 Kj/mol
Answer: third energy level
Explanation: In a sodium atom, the highest-energy principal energy level containing electrons is the third energy level, and that energy level contains one electron.
The atomic number of an atom that has six protons, six neutrons, and six electrons is 6. And the element is carbon.
Carbon is known as a tetravalent compound.
It has four electrons in its outermost shell. It forms a covalent bond with other compounds.
The number of neutrons. = 6
Number of electrons = 6
Number of protons = 6
So the atomic number of the compound is,
The atomic number of an element = Number of protons present in its nucleus
The number of protons given in the compound is 6.
So the atomic number of the compound is also 6.
Carbon has six atomic numbers.
Therefore, the atomic number of an atom that has six protons, six neutrons, and six electrons is 6. And the element is carbon.
To know more about electrons, refer to the below link:
brainly.com/question/1255220
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