In the following reaction 2C6H6 + 15O2 12CO2 + 6H2O how many grams of oxygen will react with 10.47 grams of benzene (C6H6)?
Answers
=
= 0.134 mol
mol of oxygen:
ratio of
= 2 : 15
= 1 : 7.5
: . mol of
= 1.01 mol
Mass of Oxygen = mol * Mr
= 1.01 mol * (16*2) g/mol
= 32.22g
Note: Mr is molar mass
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Answers
Explanation:
It is known that the atomic number of sodium is 11 and its electronic distribution is 2, 8, 1.
As the number of rows (called periods) in the periodic table represent the number of shells present in an element.
Since, sodium element have only two shells. Therefore, sodium lies in row 2 of the periodic table.
Also, the elements which contain same number of valence electrons lie in the same group.
Therefore, sodium belongs to group 1 and elements of the group 1 are also known as alkali metals.
Thus, we can conclude that in the periodic table sodium lies in period 2 and group 1.
4.5 × 10^-4.
Answers
Initial concentration = 0.311
C = -x,x,x
E = 0.311-x,x,x
KNO2 ====>K+ + NO2-
Initial concentration = 0.189
C= -0.189,0.189,0.189
E = 0,0.189,0.189
Answers
Answer: Na has a ground-state electronic configuration of 1s2 2s2 2p6 3s1. Removing the 3s electron leaves us with the noble gas configuration 1s2 so a sodium ion is Na+.
Explanation: I HOPE THAT HELPED!
Final answer:
The ground state electron configuration for sodium (Na) is 1s²2s²2p63s¹. The electron in the outermost shell (3s orbital) is the valence electron, with the rest being core electrons. It can be abbreviated as [Ne]3s¹.
Explanation:
The ground state electron configuration for sodium (Na), an alkali metal with atomic number 11, is 1s²2s²2p63s¹. This configuration includes one electron in the outermost shell, or 3s orbital, and the rest in the core electron shells. To abbreviate this, we look at the noble gas that matches the core configuration, in this case neon (Ne), and the configuration becomes [Ne]3s¹. The outermost electron, in the 3s orbital, is known as a valence electron, while the others are core electrons.
Learn more about Electron configuration here:
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Answers
Answer: Molecular Formulas. Molecular formulas are a compact chemical notation that describe the type and number of atoms in a single molecule of a compound. Identify the molecular formula of a compound given either its name or structural formula.
Explanation:
B. reactivity
C. volatility
D. physical properties
Answers
Answers
In order to calculate for the mole fraction of benzene, you will need to convert all mass into moles. This can be done through dividing the mass with the elements’ molar mass. Since the molar mass of HCl is 36, the number of moles of HCl in the solution is 2 moles. Meanwhile Benzene has a molar mass of 78 thus having 6 moles in the solution. Dividing 6 moles with the total number of moles which is 8 moles, you would get 0.75 mole fraction of Benzene.