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00+ Soso 10.10 SU 0.725 mol/l 2 mol Answer: 5. Water is added to 150.0 ml of 2.20 M KCl solution to decrease its...
A chemist started with a 0.64 mol L-1 aqueous glucose solution and added water followed by...
A chemist started with a 0.64 mol L-1 aqueous glucose solution and added water followed by stirring to obtain a final total volume of 142.53 mL. The resultant glucose concentration was 0.42 mol L-1. What was the volume of the initial glucose solution (in mL)?
the amount up oL 6- If 12.00 L of a 6.00 M HNO3 solution needs to...
the amount up oL 6- If 12.00 L of a 6.00 M HNO3 solution needs to be diluted to 0.750 M, what will be its final volume? 8- If 1.00 L of an LiOH solution is boiled down to 164 mL and its initial concentration is 0.00555 M, what is its final concentration? 10 How much water must be added to 1.55 L of 1.65 M Sc(NO3)3(aq) to reduce its concentration to 1.00 M? 8- What volume of 3.99 M...
3. If 200. mL of 0.60 M MgCl2(ag) is added to 40U, ms t tilled water,...
3. If 200. mL of 0.60 M MgCl2(ag) is added to 40U, ms t tilled water, what is the concentration of Mg2+(ag) and Cl-(aq) in the resulting solution? (Assume volumes are additive.) 15 20 2H [C (mol/L) [Mg] (mol/L) (A (A) 0.20 0.20 0.40 0.20 (C) 0.40 0.40 (D) 2.0 2.5 8 3@00 8. A sample of 25.0 mL of 0.120 M Ca(OH)2(aq) is titrated wit 0.150 M HCl(aq). What volume of HCl(aq) is needed to com pletely neutralize the...
Answer the following solution concentration questions How much water must be added to 40.0 g of...
Answer the following solution concentration questions How much water must be added to 40.0 g of CaCl, to produce a solution thatis 35.0% CaCl2? a. b. You can purchase hydrochloric acid in a concentrated form that is 36.0 % HCl by mass and that has a density of 1.20 g/mL. Describe exactly how to prepare 1.15 L of 0.500 M HCI from the concentrated solution
heading Harding 2 A Student added 49.6 mL of 0.73 M solution of HCl to a...
heading Harding 2 A Student added 49.6 mL of 0.73 M solution of HCl to a beaker. The student then added 50 mL of DI water to the beaker. The HCl was titrated with 1248 ml of 0.73 M N O solution without reaching the equivalence point. Answer questions 21 - 25 with this information 21. How many moles of HCl are in the initial solution? (3 pts) 22. What is the molarity of the initial HCl solution after adding...
1. The solubility of a gaseous solute in water is by an increase in pressure. Increased...
1. The solubility of a gaseous solute in water is by an increase in pressure. Increased decreased not affected 2. A supersaturated solution may be prepared by slowly cooling down a solution saturated at an elevated temperature. TRUE FALSE 3. A dilution is a solution made by adding a solvent to a supersaturated solution. TRUE FALSE 4. When sugar & water are mixed, a clear liquid results. In this scenario, the sugar is considered a Solute Solution Solvent All of...
Part A and Part B. Also question #3-post lab. (its circled) A. Molar Solubility and Solubility Product of Calcium Hydroxide Trial I Trial 3 Trial 2 25.0 1. Volume of saturated Ca(OH), solution (m...
Part A and Part B.
Also question #3-post lab. (its circled)
A. Molar Solubility and Solubility Product of Calcium Hydroxide Trial I Trial 3 Trial 2 25.0 1. Volume of saturated Ca(OH), solution (mL) 2. Concentration of standardized HCl solution (molU/L) 3. Buret reading, initial (mL 4. Buret reading, final (mL) 5. Volume of HCI added (mL) 6. Moles of HCI added (mol) 7. Moles of OH" in saturated solution (mol) 8. (OH1, equilibrium (mol/L) 9. (Ca2 ], equilibrium (mol/L)...
Determine how many mL of solution A(acetic acid-indicator solution) must be added to solution B (sodium...
Determine how many mL of solution A(acetic acid-indicator solution)
must be added to solution B (sodium acetate indicator solution) to
obtain a buffer solution that is equimolar in acetate and acetic
acid. You will need to refer to the Experimental Procedure,
partcularly the section on calculations, to answer this question.
Show all calculations.
of an indicator 2. Determine how many ml of solution A (acetic acid-indicator solution) must be added to solution B sodium acetate-indicator solution) to obtain a buffer...
Johnny wished to create a 0.300 M NaCl solution. Johnny only had 50.0 mL of water,...
Johnny wished to create a 0.300 M NaCl solution. Johnny only had 50.0 mL of water, however. To create his goal solution, Johnny knew he needed to know the molar mass of NaCl, which was [Select ] Next, to find the the number of moles of Naci he needed, Johnny simply multiplied the [Select] by the volume of water, in liters, which was [Select) L. Then, he calculated the number of grams of NaCl he needed taking this number of...
Please answer and explain all! Thank you! You have a 250.-mL sample of 1.250 M acetic...
Please answer and explain all! Thank you!
You have a 250.-mL sample of 1.250 M acetic acid (K_a = 1.8 times 10^-5). Assuming no volume change, how much NaOH must be added to make the best buffer? A) 6.25 g B) 12.5 g C) 16.3 g D) 21.3 g E) none of these A solution contains 0.500 M HA (K_a = 1.0 times 10^-8) and 0.432 M NaA. What is the [H^+] after 0.10 mole of HCl is added to...
the amount up oL 6- If 12.00 L of a 6.00 M HNO3 solution needs to be diluted to 0.750 M, what will be its final volume? 8- If 1.00 L of an LiOH solution is boiled down to 164 mL and its initial concentration is 0.00555 M, what is its final concentration? 10 How much water must be added to 1.55 L of 1.65 M Sc(NO3)3(aq) to reduce its concentration to 1.00 M? 8- What volume of 3.99 M...
3. If 200. mL of 0.60 M MgCl2(ag) is added to 40U, ms t tilled water, what is the concentration of Mg2+(ag) and Cl-(aq) in the resulting solution? (Assume volumes are additive.) 15 20 2H [C (mol/L) [Mg] (mol/L) (A (A) 0.20 0.20 0.40 0.20 (C) 0.40 0.40 (D) 2.0 2.5 8 3@00 8. A sample of 25.0 mL of 0.120 M Ca(OH)2(aq) is titrated wit 0.150 M HCl(aq). What volume of HCl(aq) is needed to com pletely neutralize the...
Answer the following solution concentration questions How much water must be added to 40.0 g of CaCl, to produce a solution thatis 35.0% CaCl2? a. b. You can purchase hydrochloric acid in a concentrated form that is 36.0 % HCl by mass and that has a density of 1.20 g/mL. Describe exactly how to prepare 1.15 L of 0.500 M HCI from the concentrated solution
heading Harding 2 A Student added 49.6 mL of 0.73 M solution of HCl to a beaker. The student then added 50 mL of DI water to the beaker. The HCl was titrated with 1248 ml of 0.73 M N O solution without reaching the equivalence point. Answer questions 21 - 25 with this information 21. How many moles of HCl are in the initial solution? (3 pts) 22. What is the molarity of the initial HCl solution after adding...
1. The solubility of a gaseous solute in water is by an increase in pressure. Increased decreased not affected 2. A supersaturated solution may be prepared by slowly cooling down a solution saturated at an elevated temperature. TRUE FALSE 3. A dilution is a solution made by adding a solvent to a supersaturated solution. TRUE FALSE 4. When sugar & water are mixed, a clear liquid results. In this scenario, the sugar is considered a Solute Solution Solvent All of...
Part A and Part B.
Also question #3-post lab. (its circled)
A. Molar Solubility and Solubility Product of Calcium Hydroxide Trial I Trial 3 Trial 2 25.0 1. Volume of saturated Ca(OH), solution (mL) 2. Concentration of standardized HCl solution (molU/L) 3. Buret reading, initial (mL 4. Buret reading, final (mL) 5. Volume of HCI added (mL) 6. Moles of HCI added (mol) 7. Moles of OH" in saturated solution (mol) 8. (OH1, equilibrium (mol/L) 9. (Ca2 ], equilibrium (mol/L)...
Determine how many mL of solution A(acetic acid-indicator solution)
must be added to solution B (sodium acetate indicator solution) to
obtain a buffer solution that is equimolar in acetate and acetic
acid. You will need to refer to the Experimental Procedure,
partcularly the section on calculations, to answer this question.
Show all calculations.
of an indicator 2. Determine how many ml of solution A (acetic acid-indicator solution) must be added to solution B sodium acetate-indicator solution) to obtain a buffer...
Johnny wished to create a 0.300 M NaCl solution. Johnny only had 50.0 mL of water, however. To create his goal solution, Johnny knew he needed to know the molar mass of NaCl, which was [Select ] Next, to find the the number of moles of Naci he needed, Johnny simply multiplied the [Select] by the volume of water, in liters, which was [Select) L. Then, he calculated the number of grams of NaCl he needed taking this number of...
Please answer and explain all! Thank you!
You have a 250.-mL sample of 1.250 M acetic acid (K_a = 1.8 times 10^-5). Assuming no volume change, how much NaOH must be added to make the best buffer? A) 6.25 g B) 12.5 g C) 16.3 g D) 21.3 g E) none of these A solution contains 0.500 M HA (K_a = 1.0 times 10^-8) and 0.432 M NaA. What is the [H^+] after 0.10 mole of HCl is added to...
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