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plz help im struggling 6. (15 pts) You have a sample that is a mixture of Na.Co, solid with NaCl solid. You dissolv...
Solution Worksheet Name 1.12.5 g of NaCl is dissolved in enough water to make 0,683 L...
Solution Worksheet Name 1.12.5 g of NaCl is dissolved in enough water to make 0,683 L of solution: a. What is the molarity of the solution? b. How many moles of Nail are contained in 0.0100 L of the above solution? What volume (L) of this NaCl solution would contain 0.150 moles of NaCl? 2. 255 g of NHCl is dissolved in enough water to make 7500 ml of solution What is the molarity of the solution b. How many...
6. A 1.500 g sample of a mixture of solid Na PO, 12H.O mixed with NaCl,...
6. A 1.500 g sample of a mixture of solid Na PO, 12H.O mixed with NaCl, was dissolved in water, reacted with aqueous 1 M SrCl, and 0.520 g Sr.(PO), precipitate was collected and dried to a constant mass. If the reagent tests demonstrated that Na PO:12H.O was the limiting reactant in the precipitation reaction, calculate the mass percent of Na PO, 12H 0 in the original sample. a. How many moles of Sr,(PO), were produced? b. What is the...
9. What is the hydroxide-ion concentration in a solution formed by combining 200 mL of 0.16 M HCl with 300. mL of 0...
9. What is the hydroxide-ion concentration in a solution formed by combining 200 mL of 0.16 M HCl with 300. mL of 0.091 M NaOH at 25°C? HCl(aq) + NaOH(aq) + NaCl(aq) + H2O(1) 10. What is the pH of a solution prepared by dissolving 0.241 L of HCl(g), measured at STP, in enough water such that the total volume of the solution is 2.00 L? (R = 0.0821 L.atm/(K.mol)) (Use gas law equation to calculate Mole of HCl dissolved...
Hello, I have been struggling with this problem on my homework. Determine the oxidation state for...
Hello, I have been struggling with this problem on my
homework.
Determine the oxidation state for each atom in the following compounds: (7 pts) HPO4-2 Н Cl2 Ci Na2SO4 Na 3. I have a stock solution that is 11.5 M NaCl(aq). I want to prepare 250.0 mL of a solution that has a final concentration of 0.755 M. How many mL of the stock solution should I measure? (5 pts) 4. What is the molarity of a solution made by...
Please print.) 7. (10 pts) If 0.1800 g of impure soda ash (Na2CO) is titrated with...
Please print.) 7. (10 pts) If 0.1800 g of impure soda ash (Na2CO) is titrated with 15.66 mL of 0.1082 M HCl (see reaction below), Na CO3(aq) + 2 HCl(aq) → 2 NaCl(aq) + H2O(l) + CO2(g) what is the percent purity of the soda ash? (10 pts) Soft drink bottles are made of polyethylene terephthalate (PET), a polymer composed of carbon, hydrogen. and oxygen. If 1.9022 g PET is burned in oxygen it produces 0.6585 g H20 and 4.0216...
Given the data below, how many grams of NaCl would you expect to be formed in...
Given the data below, how many grams of NaCl would you expect to be formed in the reaction of excess HCl with the Na,CO3? The molar mass of sodium carbonate is 105.989 g/mol and the molar mass of sodium chloride is 58.443 g/mol. 83.000 mass of empty beaker (g) mass of beaker plus Na2CO3 (9) mass of Na2CO3 (9) 85.250 2.250 Select one: O a. 2.481 g O b. 3.308 g O c.4.962 g O d. 1.241 g You added...
help with all 6 questions please Question 24 1 pts An isotonic solution of NaCl is...
help with all 6 questions please
Question 24 1 pts An isotonic solution of NaCl is 0.90% w/v. Suppose you start with a teaspoon (5.69 g) of NaCl and dissolve it in water. How many total mL would the solution need to be to be isotonic? Give to at least two significant figures? Question 25 1 pts A soft drink has a pH of 2. What will be the concentration of Ht? Give the exact number, without the unit. I...
5. A 3.5 L sample of a 5.8 M NaCl solution is diluted to 55L. What...
5. A 3.5 L sample of a 5.8 M NaCl solution is diluted to 55L. What is the molarity of the diluted solution? 6. Consider the reaction: K Slaq) + Co(NO3)2 (aq) → 2KNO3(aq) + Cos) What volume of 0.225 M K S solution is required to completely react with 175 mL of 0.115 M CO(NO3)2? 7. For each reaction, identify the Bronsted-Lowry acid, the Bronsted-Lowry base, the conjugate acid and the conjugate base a. Hl(aq) + H2O → H30*...
Assume you dissolve 0.367 g of the weak acid benzoic acid, CH3CO2H, in enough water to...
Assume you dissolve 0.367 g of the weak acid benzoic acid, CH3CO2H, in enough water to make 1.00 x 102 mL of solution and then titrate the solution with 0.101 M NaOH. K, for benzoic acid = 6.3 x 10-5) CH, CO,H(aq) + OH- (aq) = CH,CO, - (aq) + H20(0) a. What was the pH of the original benzoic acid solution? pt pl pH = pt b. What are the concentrations of all of the following ions at the...
The set up: In this exercise, weighed samples of a solid unknown containing NaCl and NaHCO3...
The set up:
In this exercise, weighed samples of a solid unknown containing
NaCl and NaHCO3 react with hydrochloric acid. The volume
of the CO2 liberated by the reaction in the gas phase is
measured with a gas collection syringe. From the volume we can
calculate the number of moles of CO2 in the gas phase
using the ideal gas approximation.
Since the CO2 is generated in an aqueous environment
(aqueous HCl), some CO2 will dissolve in the liquid
phase....
Solution Worksheet Name 1.12.5 g of NaCl is dissolved in enough water to make 0,683 L of solution: a. What is the molarity of the solution? b. How many moles of Nail are contained in 0.0100 L of the above solution? What volume (L) of this NaCl solution would contain 0.150 moles of NaCl? 2. 255 g of NHCl is dissolved in enough water to make 7500 ml of solution What is the molarity of the solution b. How many...
6. A 1.500 g sample of a mixture of solid Na PO, 12H.O mixed with NaCl, was dissolved in water, reacted with aqueous 1 M SrCl, and 0.520 g Sr.(PO), precipitate was collected and dried to a constant mass. If the reagent tests demonstrated that Na PO:12H.O was the limiting reactant in the precipitation reaction, calculate the mass percent of Na PO, 12H 0 in the original sample. a. How many moles of Sr,(PO), were produced? b. What is the...
9. What is the hydroxide-ion concentration in a solution formed by combining 200 mL of 0.16 M HCl with 300. mL of 0.091 M NaOH at 25°C? HCl(aq) + NaOH(aq) + NaCl(aq) + H2O(1) 10. What is the pH of a solution prepared by dissolving 0.241 L of HCl(g), measured at STP, in enough water such that the total volume of the solution is 2.00 L? (R = 0.0821 L.atm/(K.mol)) (Use gas law equation to calculate Mole of HCl dissolved...
Hello, I have been struggling with this problem on my
homework.
Determine the oxidation state for each atom in the following compounds: (7 pts) HPO4-2 Н Cl2 Ci Na2SO4 Na 3. I have a stock solution that is 11.5 M NaCl(aq). I want to prepare 250.0 mL of a solution that has a final concentration of 0.755 M. How many mL of the stock solution should I measure? (5 pts) 4. What is the molarity of a solution made by...
Please print.) 7. (10 pts) If 0.1800 g of impure soda ash (Na2CO) is titrated with 15.66 mL of 0.1082 M HCl (see reaction below), Na CO3(aq) + 2 HCl(aq) → 2 NaCl(aq) + H2O(l) + CO2(g) what is the percent purity of the soda ash? (10 pts) Soft drink bottles are made of polyethylene terephthalate (PET), a polymer composed of carbon, hydrogen. and oxygen. If 1.9022 g PET is burned in oxygen it produces 0.6585 g H20 and 4.0216...
Given the data below, how many grams of NaCl would you expect to be formed in the reaction of excess HCl with the Na,CO3? The molar mass of sodium carbonate is 105.989 g/mol and the molar mass of sodium chloride is 58.443 g/mol. 83.000 mass of empty beaker (g) mass of beaker plus Na2CO3 (9) mass of Na2CO3 (9) 85.250 2.250 Select one: O a. 2.481 g O b. 3.308 g O c.4.962 g O d. 1.241 g You added...
help with all 6 questions please
Question 24 1 pts An isotonic solution of NaCl is 0.90% w/v. Suppose you start with a teaspoon (5.69 g) of NaCl and dissolve it in water. How many total mL would the solution need to be to be isotonic? Give to at least two significant figures? Question 25 1 pts A soft drink has a pH of 2. What will be the concentration of Ht? Give the exact number, without the unit. I...
5. A 3.5 L sample of a 5.8 M NaCl solution is diluted to 55L. What is the molarity of the diluted solution? 6. Consider the reaction: K Slaq) + Co(NO3)2 (aq) → 2KNO3(aq) + Cos) What volume of 0.225 M K S solution is required to completely react with 175 mL of 0.115 M CO(NO3)2? 7. For each reaction, identify the Bronsted-Lowry acid, the Bronsted-Lowry base, the conjugate acid and the conjugate base a. Hl(aq) + H2O → H30*...
Assume you dissolve 0.367 g of the weak acid benzoic acid, CH3CO2H, in enough water to make 1.00 x 102 mL of solution and then titrate the solution with 0.101 M NaOH. K, for benzoic acid = 6.3 x 10-5) CH, CO,H(aq) + OH- (aq) = CH,CO, - (aq) + H20(0) a. What was the pH of the original benzoic acid solution? pt pl pH = pt b. What are the concentrations of all of the following ions at the...
The set up:
In this exercise, weighed samples of a solid unknown containing
NaCl and NaHCO3 react with hydrochloric acid. The volume
of the CO2 liberated by the reaction in the gas phase is
measured with a gas collection syringe. From the volume we can
calculate the number of moles of CO2 in the gas phase
using the ideal gas approximation.
Since the CO2 is generated in an aqueous environment
(aqueous HCl), some CO2 will dissolve in the liquid
phase....
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Attribute
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Sample Value
Sample Value
Sample Value
pirate_num
11
22
43
54
pirate_lname
James...
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