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For each of the following compounds, determine the moles of compound present for 609.7 grams of the compound. The chemical formula for feldspar is KAl2SisO16. What quantity in moles of feldspar are in 609.7 grams?

For each of the following compounds, determine the moles of compound present for 609.7 grams of the compound. The chemical formula for feldspar is KAl2SisO16. What quantity in moles of feldspar are in 609.7 grams?

Chemistry
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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**Problem: Calculating Moles of a Compound** For each of the following compounds, determine the moles of compound present for 609.7 grams of the compound. The chemical formula for feldspar is K₂Al₂Si₆O₁₆. What quantity in moles of feldspar are in 609.7 grams? --- **Instructions for Educational Context:** - Understand the concept of moles and molar mass. - Apply the formula: Moles = Mass (in grams) / Molar Mass of the compound. - Calculate the molar mass of feldspar (K₂Al₂Si₆O₁₆) by adding the atomic masses of each element in the formula. - Use the given mass (609.7 grams) to determine the moles of feldspar. **Tips for Calculation:** 1. **Atomic Masses:** - Potassium (K): Approximately 39.1 g/mol - Aluminum (Al): Approximately 26.98 g/mol - Silicon (Si): Approximately 28.09 g/mol - Oxygen (O): Approximately 16.00 g/mol 2. **Calculate Molar Mass of Feldspar:** - \(2 \times 39.1\) (K) + \(2 \times 26.98\) (Al) + \(6 \times 28.09\) (Si) + \(16 \times 16.00\) (O) 3. **Determine Moles:** - Use the calculated molar mass to find the number of moles in 609.7 grams. This exercise reinforces the understanding of molecular composition, stoichiometry, and practical application of chemical formulas.
Transcribed Image Text:**Problem: Calculating Moles of a Compound** For each of the following compounds, determine the moles of compound present for 609.7 grams of the compound. The chemical formula for feldspar is K₂Al₂Si₆O₁₆. What quantity in moles of feldspar are in 609.7 grams? --- **Instructions for Educational Context:** - Understand the concept of moles and molar mass. - Apply the formula: Moles = Mass (in grams) / Molar Mass of the compound. - Calculate the molar mass of feldspar (K₂Al₂Si₆O₁₆) by adding the atomic masses of each element in the formula. - Use the given mass (609.7 grams) to determine the moles of feldspar. **Tips for Calculation:** 1. **Atomic Masses:** - Potassium (K): Approximately 39.1 g/mol - Aluminum (Al): Approximately 26.98 g/mol - Silicon (Si): Approximately 28.09 g/mol - Oxygen (O): Approximately 16.00 g/mol 2. **Calculate Molar Mass of Feldspar:** - \(2 \times 39.1\) (K) + \(2 \times 26.98\) (Al) + \(6 \times 28.09\) (Si) + \(16 \times 16.00\) (O) 3. **Determine Moles:** - Use the calculated molar mass to find the number of moles in 609.7 grams. This exercise reinforces the understanding of molecular composition, stoichiometry, and practical application of chemical formulas.
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