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Write the molecular formulae of any three compounds that can be formed by the combination of the following ions: Cu2 , Na , Fe3 , Cl- , SO4 2- , PO4 3- (ii)Verify by calculating that mass of 5 moles of CO2 is not same as mass of 5 moles of H2O.?
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Write the molecular formulae of any three compounds that can be formed...
Molecular Formulae of Compounds:
1. Copper(II) chloride - CuCl2
2. Sodium sulfate - Na2SO4
3. Iron(III) phosphate - FePO4
Explanation:
1. Copper(II) chloride - CuCl2
The combination of Cu2+ and Cl- ions results in the formation of copper(II) chloride. The Cu2+ ion has a charge of 2+ while the Cl- ion has a charge of 1-. To balance the charges, two Cl- ions are needed for every Cu2+ ion. Therefore, the molecular formula of copper(II) chloride is CuCl2.
2. Sodium sulfate - Na2SO4
The combination of Na+ and SO4 2- ions results in the formation of sodium sulfate. The Na+ ion has a charge of 1+ while the SO4 2- ion has a charge of 2-. To balance the charges, two Na+ ions are needed for every SO4 2- ion. Therefore, the molecular formula of sodium sulfate is Na2SO4.
3. Iron(III) phosphate - FePO4
The combination of Fe3+ and PO4 3- ions results in the formation of iron(III) phosphate. The Fe3+ ion has a charge of 3+ while the PO4 3- ion has a charge of 3-. To balance the charges, one Fe3+ ion and one PO4 3- ion are needed. Therefore, the molecular formula of iron(III) phosphate is FePO4.
Verification of Mass of CO2 and H2O:
The molecular formula of carbon dioxide (CO2) indicates that each molecule consists of one carbon atom (C) and two oxygen atoms (O). The atomic masses of carbon and oxygen are 12.01 g/mol and 16.00 g/mol, respectively. Therefore, the molar mass of CO2 can be calculated as follows:
Molar mass of CO2 = (1 * molar mass of C) + (2 * molar mass of O)
= (1 * 12.01 g/mol) + (2 * 16.00 g/mol)
= 12.01 g/mol + 32.00 g/mol
= 44.01 g/mol
The molar mass of water (H2O) can be calculated in a similar manner. The molecular formula of water indicates that each molecule consists of two hydrogen atoms (H) and one oxygen atom (O). The atomic masses of hydrogen and oxygen are 1.01 g/mol and 16.00 g/mol, respectively. Therefore, the molar mass of H2O can be calculated as follows:
Molar mass of H2O = (2 * molar mass of H) + (1 * molar mass of O)
= (2 * 1.01 g/mol) + (1 * 16.00 g/mol)
= 2.02 g/mol + 16.00 g/mol
= 18.02 g/mol
From the calculations, we can see that the molar mass of CO2 is 44.01 g/mol while the molar mass of H2O is 18.02 g/mol. Therefore, the mass of 5 moles of CO2 would be greater than the mass of 5 moles of H
1. Copper(II) chloride - CuCl2
2. Sodium sulfate - Na2SO4
3. Iron(III) phosphate - FePO4
Explanation:
1. Copper(II) chloride - CuCl2
The combination of Cu2+ and Cl- ions results in the formation of copper(II) chloride. The Cu2+ ion has a charge of 2+ while the Cl- ion has a charge of 1-. To balance the charges, two Cl- ions are needed for every Cu2+ ion. Therefore, the molecular formula of copper(II) chloride is CuCl2.
2. Sodium sulfate - Na2SO4
The combination of Na+ and SO4 2- ions results in the formation of sodium sulfate. The Na+ ion has a charge of 1+ while the SO4 2- ion has a charge of 2-. To balance the charges, two Na+ ions are needed for every SO4 2- ion. Therefore, the molecular formula of sodium sulfate is Na2SO4.
3. Iron(III) phosphate - FePO4
The combination of Fe3+ and PO4 3- ions results in the formation of iron(III) phosphate. The Fe3+ ion has a charge of 3+ while the PO4 3- ion has a charge of 3-. To balance the charges, one Fe3+ ion and one PO4 3- ion are needed. Therefore, the molecular formula of iron(III) phosphate is FePO4.
Verification of Mass of CO2 and H2O:
The molecular formula of carbon dioxide (CO2) indicates that each molecule consists of one carbon atom (C) and two oxygen atoms (O). The atomic masses of carbon and oxygen are 12.01 g/mol and 16.00 g/mol, respectively. Therefore, the molar mass of CO2 can be calculated as follows:
Molar mass of CO2 = (1 * molar mass of C) + (2 * molar mass of O)
= (1 * 12.01 g/mol) + (2 * 16.00 g/mol)
= 12.01 g/mol + 32.00 g/mol
= 44.01 g/mol
The molar mass of water (H2O) can be calculated in a similar manner. The molecular formula of water indicates that each molecule consists of two hydrogen atoms (H) and one oxygen atom (O). The atomic masses of hydrogen and oxygen are 1.01 g/mol and 16.00 g/mol, respectively. Therefore, the molar mass of H2O can be calculated as follows:
Molar mass of H2O = (2 * molar mass of H) + (1 * molar mass of O)
= (2 * 1.01 g/mol) + (1 * 16.00 g/mol)
= 2.02 g/mol + 16.00 g/mol
= 18.02 g/mol
From the calculations, we can see that the molar mass of CO2 is 44.01 g/mol while the molar mass of H2O is 18.02 g/mol. Therefore, the mass of 5 moles of CO2 would be greater than the mass of 5 moles of H
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Write the molecular formulae of any three compounds that can be formed by the combination of the following ions: Cu2 , Na , Fe3 , Cl- , SO4 2- , PO4 3- (ii)Verify by calculating that mass of 5 moles of CO2 is not same as mass of 5 moles of H2O.?
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Write the molecular formulae of any three compounds that can be formed by the combination of the following ions: Cu2 , Na , Fe3 , Cl- , SO4 2- , PO4 3- (ii)Verify by calculating that mass of 5 moles of CO2 is not same as mass of 5 moles of H2O.? for Class 9 2024 is part of Class 9 preparation. The Question and answers have been prepared according to the Class 9 exam syllabus. Information about Write the molecular formulae of any three compounds that can be formed by the combination of the following ions: Cu2 , Na , Fe3 , Cl- , SO4 2- , PO4 3- (ii)Verify by calculating that mass of 5 moles of CO2 is not same as mass of 5 moles of H2O.? covers all topics & solutions for Class 9 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Write the molecular formulae of any three compounds that can be formed by the combination of the following ions: Cu2 , Na , Fe3 , Cl- , SO4 2- , PO4 3- (ii)Verify by calculating that mass of 5 moles of CO2 is not same as mass of 5 moles of H2O.?.
Write the molecular formulae of any three compounds that can be formed by the combination of the following ions: Cu2 , Na , Fe3 , Cl- , SO4 2- , PO4 3- (ii)Verify by calculating that mass of 5 moles of CO2 is not same as mass of 5 moles of H2O.? for Class 9 2024 is part of Class 9 preparation. The Question and answers have been prepared according to the Class 9 exam syllabus. Information about Write the molecular formulae of any three compounds that can be formed by the combination of the following ions: Cu2 , Na , Fe3 , Cl- , SO4 2- , PO4 3- (ii)Verify by calculating that mass of 5 moles of CO2 is not same as mass of 5 moles of H2O.? covers all topics & solutions for Class 9 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Write the molecular formulae of any three compounds that can be formed by the combination of the following ions: Cu2 , Na , Fe3 , Cl- , SO4 2- , PO4 3- (ii)Verify by calculating that mass of 5 moles of CO2 is not same as mass of 5 moles of H2O.?.
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