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Amiraneli [1.4K]
3 years ago
13

7. Write a formula for each of the following:

Chemistry
2 answers:
Advocard [28]3 years ago
7 0

Answer:

\huge \boxed{{C_{22} H_{46} \ \ \ \ C_{17} H_{34}  \ \ \ \ C_{13} H_{24}}}

Explanation:

alkanes \ \Rightarrow \ C_n H_{2n+2}

C_{22} H_{2(22)+2}

C_{22} H_{44+2}

C_{22} H_{46}

alkenes \ \Rightarrow \ C_n H_{2n}

C_{17} H_{2(17)}

C_{17} H_{34}

alkynes \ \Rightarrow \ C_n H_{2n-2}

C_{13} H_{2(13)-2}

C_{13} H_{26-2}

C_{13} H_{24}

sergeinik [125]3 years ago
3 0

Answer : The formula for each of the following is:

(a) C_{22}H_{46}

(b) C_{17}H_{34}

(c) C_{13}H_{24}

Explanation :

  • Alkanes are hydrocarbon in which the carbon atoms are connected with single covalent bonds.

The general formula of alkanes is C_n H_{2n+2} where n is the number of the carbon atoms present in a molecule of alkane.

  • Alkenes are hydrocarbon in which the carbon atoms are connected with double covalent bonds.

The general formula of alkenes is C_n H_{2n} where n is the number of the carbon atoms present in a molecule of alkene.

  • Alkynes are hydrocarbon in which the carbon atoms are connected with triple covalent bonds.

The general formula of alkynes is C_n H_{2n-2} where n is the number of the carbon atoms present in a molecule of alkyne.

(a) An alkane with 22 carbon atoms

Putting n = 22 in the general formula of alkane, we get the formula of alkane as, C_{22}H_{2(22)+2} or C_{22}H_{46}

(b) An alkene with 17 carbon atoms

Putting n = 17 in the general formula of alkene, we get the formula of alkene as, C_{17}H_{2(17)} or C_{17}H_{34}

(c) An alkyne with 13 carbon atoms

Putting n = 13 in the general formula of alkyne, we get the formula of alkyne as, C_{13}H_{2(13)-2} or C_{13}H_{24}

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