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. 1. 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) 2. An eggshell is the hard, outer covering of an egg. It consists mostly of calcium carbonate (CaCO3), which is a common fom of calcium. (Atomic masses: Ca=40.08g; C=12.01; 0=16.00g from the Periodic Table) Phosphoric acid (HSPO4) is a compound used in detergents, fertilizers, toothpastes and flavoring in carbonated beverages. (Atomic masses: H=1.01g; P3D 30.97g; O=16.00g from the Periodic Table) 3. 2. Fill-In the table below. Then, calculate the percentage composition of each element in the compounds. Name of Chemical Symbol of Atomic Mass Number of Molar Compound Formula Elements atoms Mass Composition Water H= 1.01 g O = 16.00 g H=7 O =7 Calcium Carbonate 1 atom of Ca 1 atom of C 3 atoms of O Ca 7 CaCOs Phosphoric Acid H. 98.00 g/mol I PO

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. 1. 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) 2. An eggshell is the hard, outer covering of an egg. It consists mostly of calcium carbonate (CaCO3), which is a common fom of calcium. (Atomic masses: Ca=40.08g; C=12.01; 0=16.00g from the Periodic Table) Phosphoric acid (HSPO4) is a compound used in detergents, fertilizers, toothpastes and flavoring in carbonated beverages. (Atomic masses: H=1.01g; P3D 30.97g; O=16.00g from the Periodic Table) 3. 2. Fill-In the table below. Then, calculate the percentage composition of each element in the compounds. Name of Chemical Symbol of Atomic Mass Number of Molar Compound Formula Elements atoms Mass Composition Water H= 1.01 g O = 16.00 g H=7 O =7 Calcium Carbonate 1 atom of Ca 1 atom of C 3 atoms of O Ca 7 CaCOs Phosphoric Acid H. 98.00 g/mol I PO

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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In an alien world, a different periodic table exists. It is organized similar to the periodic table in our world, just smaller. The first group contains the alkali metals, the second group the alkaline earth metals, there are a few transition metals, and then some non-metals. The periodic table is shown below in picture form, and a table is given with molar masses and common ionic charges. Also in the table is a list of common ion groups (similar to carbonate, nitrate, etc. in our world.) Below is a table showing the molar masses and common ionic charges Element Symbol Atomic Number Atomic Mass Common Charge(s) FixedOrVariable Element or Group Name of anion Hydrogen H 0 Jellium J 1 1.28 2 Fixed Element Dogium D 2 2.48 -3 Fixed Element Dogide Gorillium G 3 4.87 -2 Fixed Element Gorillide Monkium M 4 7.27 -1 Fixed Element Monkide Jucium Oj 5 9.39 1 Fixed Element Racium R 6 11.18 2 Fixed Element Romium Ro 7 14.05 -3 Fixed Element Romide Julietium Ju…
In an alien world, a different periodic table exists. It is organized similar to the periodic table in our world, just smaller. The first group contains the alkali metals, the second group the alkaline earth metals, there are a few transition metals, and then some non-metals. The periodic table is shown below in picture form, and a table is given with molar masses and common ionic charges. Also in the table is a list of common ion groups (similar to carbonate, nitrate, etc. in our world.) Below is a table showing the molar masses and common ionic charges Element Symbol Atomic Number Atomic Mass Common Charge(s) FixedOrVariable Element or Group Name of anion Hydrogen H 0 Jellium J 1 1.28 2 Fixed Element Dogium D 2 2.48 -3 Fixed Element Dogide Gorillium G 3 4.87 -2 Fixed Element Gorillide Monkium M 4 7.27 -1 Fixed Element Monkide Jucium Oj 5 9.39 1 Fixed Element Racium R 6 11.18 2 Fixed Element Romium Ro 7 14.05 -3 Fixed Element Romide Julietium Ju…
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7,8, and 9
Cu (II) sulfate exists as a hydrate. It has many practical uses including use as a fungicide and pesticide. When mixed with chromium and arsenic it forms the wood preservative called CCA. CCA was used in pressure treated wood to protect wood from rotting due to insects and microbial agents. Because CCA treated wood contains toxic heavy metals, its use has been discontinued for home use and children’s play sets. A chemist is given a sample of the CuSO4 hydrate and asked to determine the empirical formula of it. The original sample weighed 42.75 g. After heating to remove the waters of hydration, the sample weighed 27.38 g. Determine the formula for this hydrate.
Finding the formula
Note:- • Do not provide handwritten solution. Maintain accuracy and quality in your answer. Take care of plagiarism. • Answer completely. • You will get up vote for sure.
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39
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