Question

Q.1 Define Molecular formula, Empirical formula, structural formula.
Q.2 Write the molecular formula of the following
potassium hydroxide
magnesium chloride
Sulphur dioxide
potassium dichromate
plaster of Paris
baking soda?​

Answer 1

Answer:

Q.1 There are three main types of chemical formulas: empirical, molecular and structural. Empirical formulas show the simplest whole-number ratio of atoms in a compound, molecular formulas show the number of each type of atom in a molecule, and structural formulas show how the atoms in a molecule are bonded to each other.

$✮\sf\large\underline\green{Answer:-}</p><p>$

$\sf{\implies Potassium\:hydroxide=KOH}</p><p>$

$\sf{\implies Megnesium\:chloride=Mgcl_{2}}</p><p>$

$\sf{\implies Sulphur\:dioxide=SO_{2}}</p><p>$

$\sf{\implies Potassium\:dichromate=K_{2}Cr_{2}O_{7}}</p><p>$

[tex]\sf{\implies Plaster\:of\:paris=(CaSO_{4})_{2}.H_{2}O}

Answer 2

$✮\sf\large\underline\pink{Question-(1):-}$

Define Molecular formula, Empirical formula, Structural formula.

$✮\sf\large\underline\purple{Answer:-}$

$✮\sf\large\underline\gray{Molecular\:formula:-}$

The formula which shows the actual number of atoms of various element present in one molecule of the substance is known as molecular formula. Example of Molecular formula of water is H_2 O.

$✮\sf\large\underline\blue{Empirical\:formula:-}$

Empirical formula which shows the simplest ratio of atoms of the constituent elements present in one molecule of a substance is called Empirical formula. Example of Empirical formula of Hydrogen peroxide is (H_2 O_2)

$✮\sf\large\underline\gray{Structural\:formula:-}$

The formula which represent the arrangement of atoms in a compound is known as structural formula. Example of structural formula of Ethane is (C_2 H_6)

$✮\sf\large\underline\pink{Question-(2):-}$

Write the molecular formula of the following.:

$✮\sf\large\underline\purple{Answer:-}$

$\sf{\implies Potassium\:hydroxide=KOH}$

$\sf{\implies Megnesium\:chloride=Mgcl_{2}}$

$\sf{\implies Sulphur\:dioxide=SO_{2}}$

$\sf{\implies Potassium\:dichromate=K_{2}Cr_{2}O_{7}}$

$\sf{\implies Plaster\:of\:paris=(CaSO_{4})_{2}.H_{2}O}$

$\sf{\implies Baking\:soda=NaHCO_{3}}$

thanks!