Answer:
2.29x10⁻¹² is Ksp of the salt
Explanation:
The Ksp of the metal hydroxide is:
M(OH)₂(s) ⇄ M²⁺ + 2OH⁻
Ksp = [M²⁺] [OH⁻]²
As you can see in the reaction, 2 moles of OH⁻ are produced per mole of M²⁺. It is possible to find [OH⁻] with pH, thus:
pOH = 14- pH
pOH = 14 - 10.22
pOH = 3.78
pOH = -log[OH⁻]
<em>1.66x10⁻⁴ = [OH⁻]</em>
And [M²⁺] is the half of [OH⁻], <em>[M²⁺] = 8.30x10⁻⁵</em>
<em />
Replacing in Ksp formula:
Ksp = [8.30x10⁻⁵] [1.66x10⁻⁴]²
Ksp = 2.29x10⁻¹² is Ksp of the salt
Name Methane CH4,Butane C4H10,Acetone CH3COCH3 ,Toluene Acetylene CH3C6H5, Ethyl C2H2 ,Alcohol C2H5OH
<h3>The following compound is CH3 CH3 CH2 CH2 CH2 CH3, but what is its IUPAC name?</h3>
Answer and justification A longest carbon chain in the above diagram has seven carbon atoms, as can be observed.The IUPAC nomenclature for this compound is heptane since all of the bonds are single bonds devoid of any functional groups.
<h3>What is this compound's IUPAC name, CH3 CH2 CH2 CH2 CH2 CH?</h3>
When there are nine carbons, the word non is the root.Therefore, nonane is the IUPAC term for CH3-CH2-CH2-CH2-CH2-CH2-CH2-CH3.
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Answer:
The process of dissolving can be endothermic (temperature goes down) or exothermic (temperature goes up).
When water dissolves a substance, the water molecules attract and “bond” to the particles (molecules or ions) of the substance causing the particles to separate from each other.
The “bond” that a water molecule makes is not a covalent or ionic bond. It is a strong attraction caused by water’s polarity.
It takes energy to break the bonds between the molecules or ions of the solute.
Energy is released when water molecules bond to the solute molecules or ions.
If it takes more energy to separate the particles of the solute than is released when the water molecules bond to the particles, then the temperature goes down (endothermic).
If it takes less energy to separate the particles of the solute than is released when the water molecules bond to the particles, then the temperature goes up (exothermic).
Explanation:
Answer:
<span>The hot water <u>remained at the top</u> when poured into the glass containing cold tap water.
Explanation:
As we know every thing which floats on water has less density as compared to water. So, it means when water is heated its density decreases or when it is cooled its density increases. Don't get confused with Ice. Density of water decreases upto 5 to 6 </span>°C, below this temperature Ice formation takes place.
So, when water is heated the molecules of water starts moving with higher kinetic energy. The space between water molecules increases and tends to occupy more space, hence an increase in volume takes place. As density and volume are inversely related to each other so density decreases and hot water moves to the top.
The force of attraction due to which the atoms or ions are held together in a molecule or crystal is said be bonding. The formation of a bond can take place by either transfer of electrons or attraction of electrons. There are single, double, and triple bonds. There are various types of bonding namely:
Ionic bonding: in which transfer of electrons takes place.
Covalent bonding: in which sharing of electrons takes place.
Metallic bonding: ionized atoms of metals and the sea of electrons around them.
Only xenon atoms are present in solid xenon which are interacted by weak Van der Waal's interactions.
- Calcium fluoride,
Calcium fluoride is formed by complete transfer of electrons from calcium to fluorine and the force of attraction between them is electrostatic. So, the bonding is ionic bonding.
Bronze is an alloy of metal that is copper and tin. Hence, the metallic bonding is present in the brass.
- Cadmium telluride,
On the basis of the position in periodic table, the bonding in cadmium telluride is covalent in nature with slight ionic character.
It is a polymer whose monomer unit is isoprene, which is a covalent compound. The isoprene units are attached in repeated units to form rubber by covalent bonding.
The tungsten is in its elemental form and the interaction that hold atoms together in tungsten is metallic.
