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1. A solution contains 28% phosphoric acid by mass. This means that: A.)100 ml of this solution contains 28 g of phosphoric acid B. I ml of this solution contains 28 g of phosphoric acid C. 1 L of this solution contains 28 mL of phosphoric acid

1. A solution contains 28% phosphoric acid by mass. This means that: A.)100 ml of this solution contains 28 g of phosphoric acid B. I ml of this solution contains 28 g of phosphoric acid C. 1 L of this solution contains 28 mL of phosphoric acid

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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4DIAN San ose istrict, agadian City SELF-PACED LEARNING MODULE IN CHEMISTRY 2 Code #: Grade & Section: 84. Therese Calcutta Name of Teacher: Clyne Fay M. Lafable Name: MODULE 2 Q3: SOLUTION CONCENTRATION & STOICHIOMETRY Module Overview: COUC In the previous semester, we have learned that stoichiometry is the basis of quantitative chemistry. In this module, we will learn ways of expressing the concentration of solutions and perform stoichiometric calculations involving solutions. omilelo Learning Competencies: At the end of this module, you can: 1. Use different ways of expressing the concentration of solutions: percent by mass, mole fraction, molarity, molality, percent by volume and percent by mass(STEM GC11PPIIId-f-111) Instructional Materials: 1. Bayquen, A, V, Pena, Gardee (2016). Senior High School General Chemistry 2, Phoenix Publishing House, Inc. Quezon City. d Values: Academic proficiency and Critical thinking anoL be Directions: the letter that corresponds to the correct answer. olor lo sanM Pre-assessment 1. A solution contains 28% phosphoric acid by mass. This means that: A.)100 ml of this solution contains 28 g of phosphoric acid B. 1 ml of this solution contains 28 g of phosphoric acid C. 1 L of this solution contains 28 mL of phosphoric acid D. 1Lof this solution has a mass of 28 g diod ns 2. Calculate the concentration in % (wt/wt) of a solution containing 20.0 g of NaCl dissolved in 250.0 g of H2O. C. 8.00% (m/m) D. 8.25% (m/m) 3. What is the concentration in % (m/v) of a NaCl solution prepared by dissolving 9.3g of biozigeg A. 6.76% (m/m) B. 7.41% (m/m) NaCl in a sufficient amount of water to give 350 mL of solution? C. 37.6% (m/v) D. 2.66 (m/v) A. 3,26% (m/v) B. 0.455% (m/v) 4. Calculate the grams of NaOH present in 5.0 mL of a 1.0% (m/v) NaOH solution. A. C. 0.50 g D. 1.0 g A.0.050 g B. 0.10 g 5. How many grams of NaOH are there in 500.0 mL of a 0.175 M NAOH solution?A. C. 114 g D. 0.00219 g A. 14 g B. 3.50 g LUG A9 IoU I 201c DAICS bo INTRODUCTION caborr wil olom vd Activity 1: Solution Vocabulary Direction: Form the scrambled letters into words that are associated with a solution. CONCENTRATION SOLVENT CONCENTRATED Refer to the words listed below. m Tsluoineg s to eslom 1. TNACROOITNENC 2. TNVELOS 3. ANERDNCTTOCE 4. ISLOTNUo omsi02.1029SOLUTION 5. TULSOBILIY 6. ITULDE i0lo elom 7. TIVUIANETQTA o:- SOLUBILITY QUANTITATIVE
Transcribed Image Text:4DIAN San ose istrict, agadian City SELF-PACED LEARNING MODULE IN CHEMISTRY 2 Code #: Grade & Section: 84. Therese Calcutta Name of Teacher: Clyne Fay M. Lafable Name: MODULE 2 Q3: SOLUTION CONCENTRATION & STOICHIOMETRY Module Overview: COUC In the previous semester, we have learned that stoichiometry is the basis of quantitative chemistry. In this module, we will learn ways of expressing the concentration of solutions and perform stoichiometric calculations involving solutions. omilelo Learning Competencies: At the end of this module, you can: 1. Use different ways of expressing the concentration of solutions: percent by mass, mole fraction, molarity, molality, percent by volume and percent by mass(STEM GC11PPIIId-f-111) Instructional Materials: 1. Bayquen, A, V, Pena, Gardee (2016). Senior High School General Chemistry 2, Phoenix Publishing House, Inc. Quezon City. d Values: Academic proficiency and Critical thinking anoL be Directions: the letter that corresponds to the correct answer. olor lo sanM Pre-assessment 1. A solution contains 28% phosphoric acid by mass. This means that: A.)100 ml of this solution contains 28 g of phosphoric acid B. 1 ml of this solution contains 28 g of phosphoric acid C. 1 L of this solution contains 28 mL of phosphoric acid D. 1Lof this solution has a mass of 28 g diod ns 2. Calculate the concentration in % (wt/wt) of a solution containing 20.0 g of NaCl dissolved in 250.0 g of H2O. C. 8.00% (m/m) D. 8.25% (m/m) 3. What is the concentration in % (m/v) of a NaCl solution prepared by dissolving 9.3g of biozigeg A. 6.76% (m/m) B. 7.41% (m/m) NaCl in a sufficient amount of water to give 350 mL of solution? C. 37.6% (m/v) D. 2.66 (m/v) A. 3,26% (m/v) B. 0.455% (m/v) 4. Calculate the grams of NaOH present in 5.0 mL of a 1.0% (m/v) NaOH solution. A. C. 0.50 g D. 1.0 g A.0.050 g B. 0.10 g 5. How many grams of NaOH are there in 500.0 mL of a 0.175 M NAOH solution?A. C. 114 g D. 0.00219 g A. 14 g B. 3.50 g LUG A9 IoU I 201c DAICS bo INTRODUCTION caborr wil olom vd Activity 1: Solution Vocabulary Direction: Form the scrambled letters into words that are associated with a solution. CONCENTRATION SOLVENT CONCENTRATED Refer to the words listed below. m Tsluoineg s to eslom 1. TNACROOITNENC 2. TNVELOS 3. ANERDNCTTOCE 4. ISLOTNUo omsi02.1029SOLUTION 5. TULSOBILIY 6. ITULDE i0lo elom 7. TIVUIANETQTA o:- SOLUBILITY QUANTITATIVE
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