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1. Determine how many moles of potassium dichromate (K₂Cr₂O₂) are required to make 250 mL of a 0.10 M solution. I mul -10 Mx 25 298.1818 7.35 M 1,36M 250MLX 1000 X 2. If 220mL of a 12.0M HCI solution is diluted to 1000mL, what will be the concentration of the new solution? 10 M 207.1818

1. Determine how many moles of potassium dichromate (K₂Cr₂O₂) are required to make 250 mL of a 0.10 M solution. I mul -10 Mx 25 298.1818 7.35 M 1,36M 250MLX 1000 X 2. If 220mL of a 12.0M HCI solution is diluted to 1000mL, what will be the concentration of the new solution? 10 M 207.1818

Introductory Chemistry: An Active Learning Approach
Introductory Chemistry: An Active Learning Approach
6th Edition
ISBN:9781305079250
Author:Mark S. Cracolice, Ed Peters
Publisher:Mark S. Cracolice, Ed Peters
Chapter16: Solutions
Section: Chapter Questions
Problem 24E
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Are these correct? The top page of the second paper is the second problem.
Vocabulary: SOLUTIONS, MIXTURES AND CONCENTRATION REVIEW GUIDE CHEMISTRY Hydrogen Bonding Solvent-saute dissolves and becomes Substance Supersaturated-ncrease concernation Equations to Use: Unsaturated-<ss amont of SOLLTE Molality part solution to total Colligative Properties depend on the concetration but not identity Molecules more from %mass = grams solute Grams solution PRACTICE: M₁V₁=M₂V₂ AT = K m n (for freezing or boiling point changes) Molarity = moles Liter Molality = kilograms Mol Liter ку of solute or solvent higher concetration to lower e once tratti on of solut - Solute - Substance dissolved - Solution - end product of soluk for gene - Saturated - mat amount - Molarity-concetration more = solutepper Lolution Mass Percent Students are responsible for all unit conversions, including metric unit conversions. 1,36M 10 M 1. Determine how many moles of potassium dichromate (K₂Cr₂O₂) are required to make 250 mL of a 0.10 M solution. I mul -10 Mx 25 298,1818 7.35 M 250ML X 1000 X 2. If 220mL of a 12.0M HCI solution is diluted to 1000mL, what will be the concentration of the new solution? 207.1818
Transcribed Image Text:Vocabulary: SOLUTIONS, MIXTURES AND CONCENTRATION REVIEW GUIDE CHEMISTRY Hydrogen Bonding Solvent-saute dissolves and becomes Substance Supersaturated-ncrease concernation Equations to Use: Unsaturated-<ss amont of SOLLTE Molality part solution to total Colligative Properties depend on the concetration but not identity Molecules more from %mass = grams solute Grams solution PRACTICE: M₁V₁=M₂V₂ AT = K m n (for freezing or boiling point changes) Molarity = moles Liter Molality = kilograms Mol Liter ку of solute or solvent higher concetration to lower e once tratti on of solut - Solute - Substance dissolved - Solution - end product of soluk for gene - Saturated - mat amount - Molarity-concetration more = solutepper Lolution Mass Percent Students are responsible for all unit conversions, including metric unit conversions. 1,36M 10 M 1. Determine how many moles of potassium dichromate (K₂Cr₂O₂) are required to make 250 mL of a 0.10 M solution. I mul -10 Mx 25 298,1818 7.35 M 250ML X 1000 X 2. If 220mL of a 12.0M HCI solution is diluted to 1000mL, what will be the concentration of the new solution? 207.1818
(12.0 MIC1000ML) = 220 M. L 220 ML) zzd concetration = 54.54 M 3. How many grams of methanol (CH3OH) are needed to make 10 L of aqueous 4.0M methanol solution? 4.0 x 4.0 M 10L grams solte grams solution 99 7.90 4. What is the mass % of a solution made by mixing 75 mL of ethanol with water to produce a total volume of 500 mL? Hint: Start by looking up the densities of ethanol and water. 997 789 .4 grams 99700 75 1.786 + 500 x 100 54199.3.1. 1.786
Transcribed Image Text:(12.0 MIC1000ML) = 220 M. L 220 ML) zzd concetration = 54.54 M 3. How many grams of methanol (CH3OH) are needed to make 10 L of aqueous 4.0M methanol solution? 4.0 x 4.0 M 10L grams solte grams solution 99 7.90 4. What is the mass % of a solution made by mixing 75 mL of ethanol with water to produce a total volume of 500 mL? Hint: Start by looking up the densities of ethanol and water. 997 789 .4 grams 99700 75 1.786 + 500 x 100 54199.3.1. 1.786
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