Group 14 is the carbon family. The five members are carbon, silicon, germanium, tin, and lead. All of these elements have four electrons in their outermost energy level. Of the Group 14 elements, only carbon and silicon form bonds as nonmetals (sharing electrons covalently).
The molarity of the diluted solution is 0.2706 M.
Given,
M₁ = 1.1 M
V₁ = 123 mL
V₂ = 500.0 mL
The dilution law formula is M₁V₁ = M₂V₂
1.1*123=M₂*500
M₂=0.2706 M
<h3 /><h3>Molarity </h3>
Molarity, a concentration unit used in chemistry, is determined by dividing the number of moles of a solute by the number of liters of solution. The phrase "molar concentration" (also known as "molarity," "amount concentration," or "substance concentration") refers to the amount of a substance per unit volume of solution and is used to describe the concentration of a chemical species, specifically a solute, in a solution. The most frequent measure of molarity in chemistry is the number of moles per liter, denoted by the unit symbol mol/L or mol/dm3 in SI units. A solution with a concentration of 1 mol/L is referred to as 1 molar, or 1 M.
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1) <span>Check all correct statements concerning pentyne.
a) </span><span>contains 5 carbons
b) </span><span>has a triple bond
c) </span><span>is an alkyne
2) </span><span>Which statement is not true of alkenes?
a) </span><span>They are more stable than alkanes.
3) </span><span>Butene would have 4 carbon atoms and a ______ bond.
a) Double Bond
4) </span><span>Which type of reaction to alkenes generally undergo?
a) Addition Reaction
5) </span><span>If the carbon atom of hydrocarbon is bonded to less than 4 other atoms, the hydrocarbon is considered _______.
a) Unsaturated
6) </span><span>Which of the following apply to unsaturated hydrocarbons? Select all that apply.
a) </span><span>They will react readily with other elements and compounds.
b) </span><span>They have double and triple bonds.
7) </span><span>A straight chain hydrocarbon with the formula C5H10:
a) </span><span>has a double C-C bond
8) </span><span>What is the general formula for alkenes?
a) </span><span>CnH2n
9) </span><span>Choose the statements about benzene that are correct.
a) </span><span>All of the C-C bonds are actually identical.
b) </span>The structure of the molecule is closed like a ring structure.
Answer:
Options: 1, 2, 3 and 5 are correct
Explanation:
- As per the Aufbau priciple, electrons go into the subshell having the most minimal conceivable energy.
- By Hund's standard, the electron arrangement of carbon, which is , in this manner the carbon particle contains two unpaired electrons.
- Electrons can never have parallel turn in s-orbitals. If there should be an occurrence of Helium, it has 2 electrons with parallel turn in its 1s orbital.
- The plan of the orbitals in a multi electron molecule is not quite the same as the course of action in a solitary electron particle inferable from the electron-electron shocks in a multi electron iota.
- In the Li particle, the 3s, 3p, and 3d orbitals have various energies.
- Helium has 2 electrons during the 1s orbital and none during the 2s.
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