The balanced chemical equation that shows the reaction of NaOH with the diprotic acid H2SO4 is as follows:
2NaOH (aq) + H2SO4 (aq) → 2H2O (l) + Na2SO4 (aq)
BALANCEDCHEMICAL EQUATION:
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Answer:
Explanation:
it is a acid base reaction and this reaction is known as neutralization reaction and this reaction is exothermic .
Balanced chemical reaction:
2) C6H12O6
3) N2
4) O2
Answer:
Explanation:
We have to keep in mind that a good conductor would be a substance that has the ability to produce ions (charged species). These species are responsible for the electricity conduction on water.
Therefore, we have to check which ones of these compounds will produce ions in water. For and we have diatomic molecules (also gases) this type of molecules don't have the ability to produce ions due to his simplicity, they already are very stable.
In the sugar molecule we have a covalent compound. The ions are produced by ionic compounds. So, this molecule can be discarded too.
For we have an ionic compound that have the ability to produce ions:
So, this is the compound that would be a good conductor due to the and the ions.
The total pressure of the gaseous mixture is 1.57 atm.
The mixture of the gases consists of 3 diatomic molecules, 6 monoatomic molecules, and 5 other monoatomic molecules.
The total number of molecules in the mixture are:
The total pressure of a gas by Raoult's law is given as:
The partial pressure of the diatomic gas is 0.330 atm.
The mole fraction of the diatomic gas is given as:
The mole fraction of the diatomic gas is 0.2.
The total pressure of the gas is given as:
The total pressure of the gaseous mixture is 1.57 atm.
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Explanation:
The given data is as follows.
Number of particles of diatomic gas = 3
Number of particles of monoatomic gas = 6
Number of particles of another monoatomic gas = 5
Therefore, total number of particles or moles present will be as follows.
3 + 6 + 5 = 14
As we know that, mole fraction =
Hence, more fraction of the diatomic gas will be as follows.
mole fraction =
=
= 0.21
Now, formula to calculate partial pressure will be as follows.
Partial pressure of one species = molar fraction of that species x total pressure
Therefore,
= 1.57 atm
Thus, we can conclude that total pressure is 1.57 atm.
According to the concept of Avogadro's number, there are 0.0948 moles of silver present in 5.71×10²² atoms of silver.
Avogadro's number is defined as a proportionality factor which relates number of constituent particles with the amount of substance which is present in the sample.
It has a SI unit of reciprocal mole whose numeric value is expressed in reciprocal mole which is a dimensionless number and is called as Avogadro's constant.It relates the volume of a substance with it's average volume occupied by one of it's particles .
According to the definitions, Avogadro's number depend on determined value of mass of one atom of those elements.It bridges the gap between macroscopic and microscopic world by relating amount of substance with number of particles.
Number of atoms can be calculated using Avogadro's number as follows: mass/molar mass×Avogadro's number
Therefore, number of moles=number of atoms/Avogadro's number
number of moles=5.71×10²²/6.023×10²³=0.0948
Thus, there are 0.0948 moles in 5.71×10²² atoms of silver.
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N=n×Nav
n=N / Nav
(5.71×10^22) / (6.02×10^23)
n=0.09mol
(3) 25.0 g of NaCl and 100. g of H2O
(4) 25.0 g of NaNO3 and 100. g of H2O
Answer:
2
Explanation:
Because if look at the Solubity curves you will notice other three doesn't go 25 grams. They start above the 25 grams.
Answer: It has polar bonds and a symmetrical structure.
Explanation:
Formula used for calculating hybridization
where, V = number of valence electrons present in central atom i.e. boron= 3
N = number of monovalent atoms bonded to central atom=3
C = charge of cation = 0
A = charge of anion = 0
The number of electrons is 3 that means the hybridization will be and the electronic geometry of the molecule will be trigonal planar.
Thus as there are no lone pair of electrons, there is no distortion and the molecule is symmetrical. The B-F bonds are polar due to electronegativity difference but the polarities cancel due to symmetrical structure.