logging in or signing up Concentrations grazianir Download Post to : URL : Related Presentations : Share Add to Flag Embed Email Send to Blogs and Networks Add to Channel Uploaded from authorPOINT lite Insert YouTube videos in PowerPont slides with aS Desktop Copy embed code: (To copy code, click on the text box) Embed: URL: Thumbnail: WordPress Embed Customize Embed The presentation is successfully added In Your Favorites. Views: 129 Category: Entertainment License: All Rights Reserved Like it (0) Dislike it (0) Added: January 14, 2010 This Presentation is Public Favorites: 0 Presentation Description No description available. Comments Posting comment... Premium member Presentation Transcript Concentration : Concentration Qualitative vs. Quantitative : Qualitative vs. Quantitative Qualitative – describes without measurements Saturation – unsaturated, saturated, supersaturated Concentration – concentrated, dilute Qualitative vs. Quantitative : Qualitative vs. Quantitative Quantitative – describes with numbers and measurements % concentration – grams of solute in 100 g of solution. Solubility – grams of solute in 100 g of water Molarity – moles of solute in liters of solution Concentration Terms : Concentration Terms Molarity is moles of solute divided by liters of solution. Solutions are diluted by adding solvent. A concentrated solution has a larger amount of solute than a dilute solution of the same volume. Practice Problem #1 : Practice Problem #1 0.541 moles of C12H22O22 is dissolved in water to make 0.223 L of solution. What is the molarity of this solution? Practice Problem # 2 : Practice Problem # 2 16.3 g of NaCl is dissolved in water to make 1.75 L of solution. What is the molarity of this solution? Convert Grams to Moles using the Molar Mass Practice Problem #2 Continued : Practice Problem #2 Continued 16.3 g of NaCl is dissolved in water to make 1.75 L of solution. What is the molarity of this solution? Practice Problem # 3 : Practice Problem # 3 Solid CaCl2 was added to water to make a 1.70 M CaCl2 solution. Its volume is 0.450 L. What mass of CaCl2 was added? Practice Problem # 4 : Practice Problem # 4 How many moles of solute are needed to make 2.66 L of a 1.99 M C12H22O11 solution? Practice Problem # 5 : Practice Problem # 5 You need to make a 1.50 M solution using 48.0 g of NaCl. What volume of solution does this make? Practice Problem # 8 : Practice Problem # 8 1.63 mol of NaOH in 1.63 L of solution has the same molarity as 17 mol of HCl in 17 L of solution. Explain. Although there is more moles of HCl there is also more solution. Dividing moles by liters of both solutions give you 1.00 M. Dilution : Dilution Adding solvent to make the solute to spread out in the solution. Solution is less concentrated. Diluting Acid : Diluting Acid Mixing water with acid is exothermic Gives off heat Sometimes very much heat Can be dangerous Always add acid to water!!!! Dilution : Dilution Use this equation: M1 V1 = M2 V2 Dilutions : Dilutions In a dilution problem the two volumes must have the same unit. Moles of solute divided by liters of solution is molarity. An aqueous solution can be made more dilute by adding water. Practice Problem # 9 : Practice Problem # 9 A chemist needs to prepare 500.0 mL of 1.50 M HCl from a concentrated solution of 12.0 M HCl. What volume of concentrated acid is needed? M1 V1 = M2 V2 Practice Problem # 10 : Practice Problem # 10 A chemist measures out 75.0 mL of 6.0 M HNO3 and adds it to enough water to make 1.0 L of solution. What is the molarity of the new solution? M1 V1 = M2 V2 Practice Problem # 11 : Practice Problem # 11 If the vat made 1100 gallons of vinegar with a concentration of 16%, what volume of vinegar can be made to sell at 5%? M1 V1 = M2 V2 You do not have the permission to view this presentation. In order to view it, please contact the author of the presentation.
Concentrations grazianir Download Post to : URL : Related Presentations : Share Add to Flag Embed Email Send to Blogs and Networks Add to Channel Uploaded from authorPOINT lite Insert YouTube videos in PowerPont slides with aS Desktop Copy embed code: (To copy code, click on the text box) Embed: URL: Thumbnail: WordPress Embed Customize Embed The presentation is successfully added In Your Favorites. Views: 129 Category: Entertainment License: All Rights Reserved Like it (0) Dislike it (0) Added: January 14, 2010 This Presentation is Public Favorites: 0 Presentation Description No description available. Comments Posting comment... Premium member Presentation Transcript Concentration : Concentration Qualitative vs. Quantitative : Qualitative vs. Quantitative Qualitative – describes without measurements Saturation – unsaturated, saturated, supersaturated Concentration – concentrated, dilute Qualitative vs. Quantitative : Qualitative vs. Quantitative Quantitative – describes with numbers and measurements % concentration – grams of solute in 100 g of solution. Solubility – grams of solute in 100 g of water Molarity – moles of solute in liters of solution Concentration Terms : Concentration Terms Molarity is moles of solute divided by liters of solution. Solutions are diluted by adding solvent. A concentrated solution has a larger amount of solute than a dilute solution of the same volume. Practice Problem #1 : Practice Problem #1 0.541 moles of C12H22O22 is dissolved in water to make 0.223 L of solution. What is the molarity of this solution? Practice Problem # 2 : Practice Problem # 2 16.3 g of NaCl is dissolved in water to make 1.75 L of solution. What is the molarity of this solution? Convert Grams to Moles using the Molar Mass Practice Problem #2 Continued : Practice Problem #2 Continued 16.3 g of NaCl is dissolved in water to make 1.75 L of solution. What is the molarity of this solution? Practice Problem # 3 : Practice Problem # 3 Solid CaCl2 was added to water to make a 1.70 M CaCl2 solution. Its volume is 0.450 L. What mass of CaCl2 was added? Practice Problem # 4 : Practice Problem # 4 How many moles of solute are needed to make 2.66 L of a 1.99 M C12H22O11 solution? Practice Problem # 5 : Practice Problem # 5 You need to make a 1.50 M solution using 48.0 g of NaCl. What volume of solution does this make? Practice Problem # 8 : Practice Problem # 8 1.63 mol of NaOH in 1.63 L of solution has the same molarity as 17 mol of HCl in 17 L of solution. Explain. Although there is more moles of HCl there is also more solution. Dividing moles by liters of both solutions give you 1.00 M. Dilution : Dilution Adding solvent to make the solute to spread out in the solution. Solution is less concentrated. Diluting Acid : Diluting Acid Mixing water with acid is exothermic Gives off heat Sometimes very much heat Can be dangerous Always add acid to water!!!! Dilution : Dilution Use this equation: M1 V1 = M2 V2 Dilutions : Dilutions In a dilution problem the two volumes must have the same unit. Moles of solute divided by liters of solution is molarity. An aqueous solution can be made more dilute by adding water. Practice Problem # 9 : Practice Problem # 9 A chemist needs to prepare 500.0 mL of 1.50 M HCl from a concentrated solution of 12.0 M HCl. What volume of concentrated acid is needed? M1 V1 = M2 V2 Practice Problem # 10 : Practice Problem # 10 A chemist measures out 75.0 mL of 6.0 M HNO3 and adds it to enough water to make 1.0 L of solution. What is the molarity of the new solution? M1 V1 = M2 V2 Practice Problem # 11 : Practice Problem # 11 If the vat made 1100 gallons of vinegar with a concentration of 16%, what volume of vinegar can be made to sell at 5%? M1 V1 = M2 V2