Name: The Mole Concept
Uploaded: 2019-07-19
Duration: 4 min 28 s
Description: The mole is the SI unit of measurement for the amount of substance. 1 mole of a substance means the Avogadro's number of atoms or molecules of that substance...

Question

Complete the table.

Name of compound	Radicals present		No. of charges		Formula of compound
Name of compound	positive	negative	positive	negative	Formula of compound
Ammonium nitrate			1
Sodium carbonate				2	${Na}_{2} {CO}_{3}$
Ammonium hydroxide				1
Magnesium carbonate			2		${MgCO}_{3}$
Iron phosphate	${Fe}^{+ +}$

Accepted Answer

Name of compound Radicals present No. of charges Formula of compound

positive negative positive negative

Ammonium nitrate $N {H_{4}}^{+}$ $N {O_{3}}^{-}$ 1 1 ${NH}_{4} {NO}_{3}$

All compounds are electrically neutral. Hence, ammonium ion has one positive charge and nitrate ion one negative charge. So, both combine to form a neutral compound ammonium nitrate

Name of compound Radicals present No. of charges Formula of compound

positive negative positive negative

Sodium carbonate $2 {Na}^{+}$ ${Fe}^{+ +}$ $2$ $2$ ${Na}_{2} {CO}_{3}$

Carbonate anion carries two negative charges and sodium cation carries on positive charge. Hence, one carbonate ion combines with two sodium atoms to form electrically neutral sodium carbonate compound.

Name of compound Radicals present No. of charges Formula of compound

positive negative positive negative

Ammonium hydroxide $N {H_{4}}^{+}$ ${OH}^{-}$ 1 1 ${NH}_{4} OH$

Ammonium carries one positive charge and combines with one hydroxyl ion(one negative charge) to form ammonium hydroxide which is electrically neutral.

Name of compound Radicals present No. of charges Formula of compound

positive negative positive negative

Magnesium carbonate ${Mg}^{2 +}$ $C {O_{3}}^{- -}$ 2 2 ${MgCO}_{3}$

Magnesium cation carries two positive charges and carbonate anion carries two negative charges. So, one magnesium ion combines with one carbonate ion to form magnesium carbonate compound.

Name of compound Radicals present No. of charges Formula of compound

positive negative positive negative

Ammonium nitrate $N {H_{4}}^{+}$ $N {O_{3}}^{-}$ 1 1 ${NH}_{4} {NO}_{3}$

Sodium carbonate $2 {Na}^{+}$ $C {O_{3}}^{- -}$ 2 2 ${Na}_{2} {CO}_{3}$

Ammonium hydroxide $N {H_{4}}^{+}$ $O H^{-}$ 1 1 ${NH}_{4} OH$

Magnesium carbonate ${Mg}^{2 +}$ $C {O_{3}}^{- -}$ 2 2 ${MgCO}_{3}$

Iron phosphate $3 {Fe}^{+ +}$ $2 P {O_{4}}^{3 -}$ 6 6 ${Fe}_{3} {({PO}_{4})}_{2}$

Chhattisgarh Board Solutions for Chapter: Chemical Formula and Mole Concept, Exercise 2: Questions

Chhattisgarh Board Science Solutions for Exercise - Chhattisgarh Board Solutions for Chapter: Chemical Formula and Mole Concept, Exercise 2: Questions

Questions from Chhattisgarh Board Solutions for Chapter: Chemical Formula and Mole Concept, Exercise 2: Questions with Hints & Solutions

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