Use stoichiometry to set up the calculations. First, you'll need to find the chemical equation, then...
Use stoichiometry to set up the calculations. First, you'll need to find the chemical equation, then the molar relationship between the components (ratio), then set up dimensional analysis to solve for the mass of the component needed to make the desired solution.
For example, 100 mL of a solution that is 1M in sodium cation, using sodium chloride would need 5.844 g NaCl to produce M Na+ concentration.
1.) 100 mL of a solution that is 0.7 m in chloride anion, using magnesium chloride.
2.) 250 mL of a solution that is 0.34 m in sodium cation, using sodium sulfate decahydrate.
3.) 500 mL of a solution that is 0.25 m in sulfate anion, using sodium sulfate decahydrate.
*Please show all work*
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Use stoichiometry to set up the calculations. First, you'll need
to find the chemical equation, then...
Use the References to access important values if needed for this question. You need to make...
Use the References to access important values if needed for this question. You need to make an aqueous solution of 0.159 M sodium chloride for an experiment in lab, using a 125 ml volumetric flask. How much solid sodium chloride should you add? grams Submit Answer Retry Entire Group 8 more group attempts remaining Use the References to access important values if needed for this question. In the laboratory you dissolve 14.7 g of potassium sulfate in a volumetric flask...
All multiple parts to the same problem, thank you! :) Solution Stoichiometry: We need to make...
All multiple parts to the same problem, thank you! :)
Solution Stoichiometry: We need to make a 0.250 M sodium carbonate solution. We will use a 100.00 mL volumetric flask. How many grams of solid sodium carbonate should we add to the flask to make the solution? Use 105.99 as the molar mass, report correct sig figs, and use g as the unit. Solution Stoichiometry: We need to make a 0.200 M calcium chloride solution. We will use a 100.00...
can someone help me to answer questions # 2 and 3 ? thanks Fall 2019-Spring 2020...
can someone help me to answer questions # 2 and 3 ?
thanks
Fall 2019-Spring 2020 CHE 221/222 Laboratory Pre-Lab Reading 1. Use a solubility table and periodic table to complete the following table: Molar Mass (g/mol) 59.44 469.97 84.9947 143. 32 22.4898 107-868 Substance Is it Soluble in Water? yes YeS Yes NO Chemical Formula Nacl Aq No3 Na. NOs A4CI Nat Agt Cl- NO3- Sodium chloride Silver nitrate Sodium nitrate Silver chloride Sodium cation LS NO Yes yes...
i uploaded everything that was given. Where would I find the experiemental values? Complete the calcula...
i
uploaded everything that was given. Where would I find the
experiemental values?
Complete the calculation summary below. READ THE EXPERIMENTAL DISCUSSION FIRST! REPORT ALL ANSWERS TO THE CORRECT SIGNIFICANT FIGURES. SHOW CALCULATION SET-UP on the next page. PART B: Molarity Determination via Solution Stoichiometry 7.625 g Mass of Empty 50 mL Beaker 7.976 g Mass of Beaker and NaCl (final heating) Mass of NaCl Produced (Experimental Yield of NaCl) moles Moles of Na,CO, Consumed 0.00500 Liter Volume of Na,CO,...
1A)The compound magnesium bromide is a strong electrolyte. Write the reaction when solid magnesium bromide is...
1A)The compound magnesium bromide is a strong electrolyte. Write the reaction when solid magnesium bromide is put into water: 1B)The compound zinc sulfate is a strong electrolyte. Write the reaction when solid zinc sulfate is put into water 1C)The compound cobalt(II) chloride is a strong electrolyte. Write the reaction when solid cobalt(II) chlorideis put into water: 1D)You need to make an aqueous solution of 0.171 M potassium iodide for an experiment in lab, using a 300 mL volumetric flask. How...
using the procedure above complete the stoichiometry table Procedure In an oven-dried, 100 ml round bottom...
using the procedure above complete the stoichiometry
table
Procedure In an oven-dried, 100 ml round bottom flask containing magnetic stirring bar was added hydrobenzoin (1.0 8.4.7 mmol), anhydrous iron(III) chloride (0.3 g, 1.8 mmol), and anhydrous acetone (30 ml). The mixture was heated to reflux and stirred for 30 min. The reaction mixture was cooled tort and transferred to a separatory funnel containing 10% aq potassium carbonate (10 mL). Water (50 mL) was added and the aqueous solution was extracted...
Name (First and Last): Stoichiometry and Mass Relationships Report Pages Obtain values from the pictures found...
Name (First and Last): Stoichiometry and Mass Relationships Report Pages Obtain values from the pictures found in the procedure to complete the data table below A. Data: 65.62 + Mass beaker + NaCO3 + 66.62g 65.62g 2 Mass empty beaker 3 Mass Na:COs used 19. 4 Mass graduated cylinder + HCl(aq) 5 Mass empty graduated cylinder 12.689 4.41 g 8. 279 1 74.899 Mass HCl(aq) used 65.629 19 8.27 Total mass before rxn: beaker + Nazco, + HCl(aq) 65.623 8...
Problem Set 7 Stoichiometry Calculations Name: Date: Lab Section: General Instructions: Complete the following problems, Circle...
Problem Set 7 Stoichiometry Calculations Name: Date: Lab Section: General Instructions: Complete the following problems, Circle answers and show all work on separate sheet(s) of paper. 5 problems will be chosen randomly for assessing a score on this assignment. Assignment is due at the end of the lab period. 1.) 5.0 g of magnesium metal is burned in excess oxygen to produce magnesium oxide. (a) Write a balanced chemical equation for this reaction with the correct phases of all substances...
I need help with Goal #2 based on the prior to class calculations and the direction....
I need help with Goal #2 based on the prior to class
calculations and the direction.
Goal #2: Measure the pH of a monoprotic acids and its conjugate base Your group will be assigned one of the following conjugate acid/base pairs: a. HCI (1.0 M) - NaCI (58.44 g/mol) 6 Formic Acid (1.0 M) - Sodium Formate (68.01 g/mol) c. Propionic Acid (1.0 M) - Sodium Propanoate (96.06 g/mol) d. Ammonium Chloride (53.49 g/mol)-Ammonia (1.0 M) PRIOR TO CLASS Calculate...
TITRATION: I did the first page, but I need help with the rest; I'm lost. I...
TITRATION: I did the first page, but I need help with the rest;
I'm lost. I uploaded the first page because you need to reference
is for the preceding questions.
Pre-Lab Assignment: Titration (Week 11) Name: Group: Chapter 8 Section 7 in your lecture textbook covers the calculations needed for this week's lab. They are very similar to calculations we covered in Chapter 7. Complete the following before coming to lab. It will be GRADED! Given the balanced equation: HBraq)...
Use the References to access important values if needed for this question. You need to make an aqueous solution of 0.159 M sodium chloride for an experiment in lab, using a 125 ml volumetric flask. How much solid sodium chloride should you add? grams Submit Answer Retry Entire Group 8 more group attempts remaining Use the References to access important values if needed for this question. In the laboratory you dissolve 14.7 g of potassium sulfate in a volumetric flask...
All multiple parts to the same problem, thank you! :)
Solution Stoichiometry: We need to make a 0.250 M sodium carbonate solution. We will use a 100.00 mL volumetric flask. How many grams of solid sodium carbonate should we add to the flask to make the solution? Use 105.99 as the molar mass, report correct sig figs, and use g as the unit. Solution Stoichiometry: We need to make a 0.200 M calcium chloride solution. We will use a 100.00...
can someone help me to answer questions # 2 and 3 ?
thanks
Fall 2019-Spring 2020 CHE 221/222 Laboratory Pre-Lab Reading 1. Use a solubility table and periodic table to complete the following table: Molar Mass (g/mol) 59.44 469.97 84.9947 143. 32 22.4898 107-868 Substance Is it Soluble in Water? yes YeS Yes NO Chemical Formula Nacl Aq No3 Na. NOs A4CI Nat Agt Cl- NO3- Sodium chloride Silver nitrate Sodium nitrate Silver chloride Sodium cation LS NO Yes yes...
i
uploaded everything that was given. Where would I find the
experiemental values?
Complete the calculation summary below. READ THE EXPERIMENTAL DISCUSSION FIRST! REPORT ALL ANSWERS TO THE CORRECT SIGNIFICANT FIGURES. SHOW CALCULATION SET-UP on the next page. PART B: Molarity Determination via Solution Stoichiometry 7.625 g Mass of Empty 50 mL Beaker 7.976 g Mass of Beaker and NaCl (final heating) Mass of NaCl Produced (Experimental Yield of NaCl) moles Moles of Na,CO, Consumed 0.00500 Liter Volume of Na,CO,...
using the procedure above complete the stoichiometry
table
Procedure In an oven-dried, 100 ml round bottom flask containing magnetic stirring bar was added hydrobenzoin (1.0 8.4.7 mmol), anhydrous iron(III) chloride (0.3 g, 1.8 mmol), and anhydrous acetone (30 ml). The mixture was heated to reflux and stirred for 30 min. The reaction mixture was cooled tort and transferred to a separatory funnel containing 10% aq potassium carbonate (10 mL). Water (50 mL) was added and the aqueous solution was extracted...
Name (First and Last): Stoichiometry and Mass Relationships Report Pages Obtain values from the pictures found in the procedure to complete the data table below A. Data: 65.62 + Mass beaker + NaCO3 + 66.62g 65.62g 2 Mass empty beaker 3 Mass Na:COs used 19. 4 Mass graduated cylinder + HCl(aq) 5 Mass empty graduated cylinder 12.689 4.41 g 8. 279 1 74.899 Mass HCl(aq) used 65.629 19 8.27 Total mass before rxn: beaker + Nazco, + HCl(aq) 65.623 8...
Problem Set 7 Stoichiometry Calculations Name: Date: Lab Section: General Instructions: Complete the following problems, Circle answers and show all work on separate sheet(s) of paper. 5 problems will be chosen randomly for assessing a score on this assignment. Assignment is due at the end of the lab period. 1.) 5.0 g of magnesium metal is burned in excess oxygen to produce magnesium oxide. (a) Write a balanced chemical equation for this reaction with the correct phases of all substances...
I need help with Goal #2 based on the prior to class
calculations and the direction.
Goal #2: Measure the pH of a monoprotic acids and its conjugate base Your group will be assigned one of the following conjugate acid/base pairs: a. HCI (1.0 M) - NaCI (58.44 g/mol) 6 Formic Acid (1.0 M) - Sodium Formate (68.01 g/mol) c. Propionic Acid (1.0 M) - Sodium Propanoate (96.06 g/mol) d. Ammonium Chloride (53.49 g/mol)-Ammonia (1.0 M) PRIOR TO CLASS Calculate...
TITRATION: I did the first page, but I need help with the rest;
I'm lost. I uploaded the first page because you need to reference
is for the preceding questions.
Pre-Lab Assignment: Titration (Week 11) Name: Group: Chapter 8 Section 7 in your lecture textbook covers the calculations needed for this week's lab. They are very similar to calculations we covered in Chapter 7. Complete the following before coming to lab. It will be GRADED! Given the balanced equation: HBraq)...
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