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IPO Directions: 1. Read the following substances commonly found in your homes, know its uses and its composition by the use of periodic table of elements and a calculator. Water (H,O) is the most essential commodity for human consumption. Living things on earth could not survive without water. (Atomic masses: H=1.01g; O=16.00g from the Periodic Table) 1. 2. An eggshell is the hard, outer covering of an egg. It consists mostly of calcium carbonate (CACO3), which is a common form of calcium. (Atomic masses: Ca=40.08g; C=12.01; O=16.00g from the Periodic Table) Phosphoric acid (H3PO4) is a compound used in detergents, fertilizers, toothpastes and flavoring in carbonated beverages. (Atomic masses: H=1.01g; P 30.97g; 0-16.00g from the Periodic Table) 3. 2. Fill-In the table below. Then, calculate the percentage composition of each element in the compounds. Chemical Symbol of Elements Name of Atomic Mass Number of Molar Mass Compound Formula atoms Composition Water H= 1.01 g O = 16.00 g Calcium Carbonate 1 atom of Ca 1 atom of C 3 atoms of O Ca ? CaCOs Phosphoric Acid 98.00 Guide Questions: Q1. What are the elements present in these compounds? (a) Water, (b) Calcium Carbonate and (c) phosphoric acid? Q2. What is the percentage composition of the elements of each compound? Q3: Do you think these compounds are important or beneficia? Explain briefly.

IPO Directions: 1. Read the following substances commonly found in your homes, know its uses and its composition by the use of periodic table of elements and a calculator. Water (H,O) is the most essential commodity for human consumption. Living things on earth could not survive without water. (Atomic masses: H=1.01g; O=16.00g from the Periodic Table) 1. 2. An eggshell is the hard, outer covering of an egg. It consists mostly of calcium carbonate (CACO3), which is a common form of calcium. (Atomic masses: Ca=40.08g; C=12.01; O=16.00g from the Periodic Table) Phosphoric acid (H3PO4) is a compound used in detergents, fertilizers, toothpastes and flavoring in carbonated beverages. (Atomic masses: H=1.01g; P 30.97g; 0-16.00g from the Periodic Table) 3. 2. Fill-In the table below. Then, calculate the percentage composition of each element in the compounds. Chemical Symbol of Elements Name of Atomic Mass Number of Molar Mass Compound Formula atoms Composition Water H= 1.01 g O = 16.00 g Calcium Carbonate 1 atom of Ca 1 atom of C 3 atoms of O Ca ? CaCOs Phosphoric Acid 98.00 Guide Questions: Q1. What are the elements present in these compounds? (a) Water, (b) Calcium Carbonate and (c) phosphoric acid? Q2. What is the percentage composition of the elements of each compound? Q3: Do you think these compounds are important or beneficia? Explain briefly.

Chemistry & Chemical Reactivity
Chemistry & Chemical Reactivity
9th Edition
ISBN:9781133949640
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Chapter2: Atoms Molecules And Ions
Section: Chapter Questions
Problem 125GQ: Saccharin, a molecular model of which is shown below, is more than 300 times sweeter than sugar. It...
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IPO Directions: 1. Read the following substances commonly found in your homes, know its uses and its composition by the use of periodic table of elements and a calculator. Water (H,O) is the most essential commodity for human consumption. Living things on earth could not survive without water. (Atomic masses: H=1.01g; O=16.00g from the Periodic Table) 1. 2. An eggshell is the hard, outer covering of an egg. It consists mostly of calcium carbonate (CACO3), which is a common form of calcium. (Atomic masses: Ca=40.08g; C=12.01; O=16.00g from the Periodic Table) Phosphoric acid (H3PO4) is a compound used in detergents, fertilizers, toothpastes and flavoring in carbonated beverages. (Atomic masses: H=1.01g; P 30.97g; 0-16.00g from the Periodic Table) 3. 2. Fill-In the table below. Then, calculate the percentage composition of each element in the compounds. Chemical Symbol of Elements Name of Atomic Mass Number of Molar Mass Compound Formula atoms Composition Water H= 1.01 g O = 16.00 g Calcium Carbonate 1 atom of Ca 1 atom of C 3 atoms of O Ca ? CaCOs Phosphoric Acid 98.00 Guide Questions: Q1. What are the elements present in these compounds? (a) Water, (b) Calcium Carbonate and (c) phosphoric acid? Q2. What is the percentage composition of the elements of each compound? Q3: Do you think these compounds are important or beneficia? Explain briefly.
Transcribed Image Text:IPO Directions: 1. Read the following substances commonly found in your homes, know its uses and its composition by the use of periodic table of elements and a calculator. Water (H,O) is the most essential commodity for human consumption. Living things on earth could not survive without water. (Atomic masses: H=1.01g; O=16.00g from the Periodic Table) 1. 2. An eggshell is the hard, outer covering of an egg. It consists mostly of calcium carbonate (CACO3), which is a common form of calcium. (Atomic masses: Ca=40.08g; C=12.01; O=16.00g from the Periodic Table) Phosphoric acid (H3PO4) is a compound used in detergents, fertilizers, toothpastes and flavoring in carbonated beverages. (Atomic masses: H=1.01g; P 30.97g; 0-16.00g from the Periodic Table) 3. 2. Fill-In the table below. Then, calculate the percentage composition of each element in the compounds. Chemical Symbol of Elements Name of Atomic Mass Number of Molar Mass Compound Formula atoms Composition Water H= 1.01 g O = 16.00 g Calcium Carbonate 1 atom of Ca 1 atom of C 3 atoms of O Ca ? CaCOs Phosphoric Acid 98.00 Guide Questions: Q1. What are the elements present in these compounds? (a) Water, (b) Calcium Carbonate and (c) phosphoric acid? Q2. What is the percentage composition of the elements of each compound? Q3: Do you think these compounds are important or beneficia? Explain briefly.
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