Homework Answers
1) an electrolyte is a substance or a compound which dissolves in solutions to give ions . The electrolyte which gets dissolved in the solvent further divided into Cation and anion. Examples of electrolyte - sodium, calcium, potassium etc.
In the given question, taking example of NaCl--> NaCl dissolves in solution to give out Na+ and Cl- ions so it is an electrolyte.
Likewise HCl, Rb2SO4, KOH also dissolves in solution to give out there respective ions.
But argon is a Noble gas element which does not conduct electricity in water as it does not dissociate into ions.
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please circle the correct answer. don't worry about showing work. 1) of the species below, only_...
please circle the correct answer. don't worry about showing
work.
1) of the species below, only_ _ is not an electrolyte. A) HCI B) Rb2S04 C) Ar D) KOH E) NaCl 2) Aqueous potassium chloride will react with which one of the following in an exchange (metathesis) reaction? A) calcium nitrate B) sodium bromide C) lead nitrate D) barium nitrate E) sodium chloride 3) When aqueous solutions of are mixed, a precipitate forms. A) NiBr, and AgNO, B) Nal and...
please answer all questions and show work? Home assignment: Chapter 4: Aqueous Reactions and Solution Stoichiometry...
please answer all questions and show work?
Home assignment: Chapter 4: Aqueous Reactions and Solution Stoichiometry 17) An aliquot (28.7 ml.) of a KOH solution required 31.3 mL of 0.118 M HCl for neutralization. What mass (g) of KOH was in the original sample? A) 1.64 B) 7.28 C) 0.173 D) 0.207 E) 0.414 18) Which of the following would require the largest volume of 0.100 M sodium hydroxide solution for neutralization? A) 10,0 mL of 0.0500 M phosphoric acid...
m Stoichiometry #2 At Home Practice • Show all work using the factor label method •...
m Stoichiometry #2 At Home Practice • Show all work using the factor label method • Use units and label chemical formulas for all conversion factors • Report final answer with the correct number of slunificant figures, unit and chemical formula What volume, in L of 0.250 MKCI will completely react with 0.175 L of a 0.225 M Pb(NO,h solution based upon the following equation rrrrrrrr 2 KCl(aq) + Pb(NO3)(aq) → PbCI:(s) + 2 KNO3(aq) Show your work Final Answer...
QUESTIONS (Show your work) 1. 1, In a titration experiment, 0.250 M KOH is added from...
QUESTIONS (Show your work) 1. 1, In a titration experiment, 0.250 M KOH is added from a buret to 27.4 mL of a 0.154 M HSO, solution and reacts according to the equation: H;SO. (aq)- 2 KOH (aq) -- K.SO. (aq)+ 2 HO (aq) How many milliliters of potassium hydroxide solution have been added at the equivalence point (end point)? 2. In a titration experiment,, 0.375 M NaOH is added from a buret to 31.2 mL of a 0.482 M...
can you please show work? also pretend like i didnt even write anything on there 1....
can you please show work? also pretend like i didnt even write
anything on there
1. For questions 1-2 A) Write the molecular equation and balance the equation, B) Identify the precipitat that forms (if any) and C) Write the net ionic equation when the following aqueous solutions are mixed. 1. Sodium acetate and hydrochloric acid Chaco CH₂ Cook cag) molecular A) Nathan HCl(aq) Na Chat Hollow B) Nach Net: C) Nača) * O cant on - Nalles) + Mangan)...
3.355 M K2SO4 solution can be prepared by A) dilution of 500.0 mL of 1.00 MK2SO4...
3.355 M K2SO4 solution can be prepared by A) dilution of 500.0 mL of 1.00 MK2SO4 to 1.00 L B) dissolving 46.7 g of K2SO4 in water and diluting to 500.0 ml, then diluting 25.0 ml of this solution to a total volume of 500.0 mL C) dissolving 46.7 g of K2SO4 in water and diluting to a total volume of 250.0 mL D) dilution of 1.00 mL of 0.355 M K2SO4 to 1.00 L E) diluting 46.7 mL of...
please answer all questions and show work? 19) A 36,3 mL aliquot of 0.0529 MH,SO, (aq)...
please answer all questions and show work?
19) A 36,3 mL aliquot of 0.0529 MH,SO, (aq) is to be titrated with 0.0411 M NaOH(aq). What volume (ml) of base will it take to reach the equivalence point? A) 93.4 B) 46.7 C) 187 D) 1.92 E) 3.84 20) What volume (mL) of a concentrated solution of sodium hydroxide (6.00 M) must be diluted to 200.0 mL to make a 0.880 M solution of sodium hydroxide? A) 2.64 B) 176 C)...
4. You will conduct the two solvation reactions and three neutralization reactions in this experiment. In...
4. You will conduct the two solvation reactions and three neutralization reactions in this experiment. In the space provided below, write the balanced net ionic reaction equations from the descriptions. Use the table of thermodynamic data in your text (AHf(NaOH(s)= -425.61 kJ-mol) to calculate the molar enthalpy of the reactions. These will be the accepted values you will compare to the experimental values you calculate using data collected during the experiment. Part I: Solid sodium hydroxide is combined with water...
Experiment 11: Titration Pre-Lab Report Sheet Name Lab Section: Show your work for any calculations. 1....
Experiment 11: Titration Pre-Lab Report Sheet Name Lab Section: Show your work for any calculations. 1. Consider the reaction of sulfuric acid, H,SO., with sodium hydroxide, NaOH. H2SO (aq) + 2NaOH(aq) → 2 H2O(l) + Na:SO (aq) Suppose a beaker contains 35.0 ml of 0.175 MH SO. How many moles of NaOH are needed to react completely with the sulfuric acid? 2. In the titration of total acid with sodium hydroxide, NaOH, it was determined that 36,03 mL of 0.0980...
What volume (in mL) of 0.100 M barium hydroxide, Ba(OH)b, is needed to completely neutralize 25.0...
What volume (in mL) of 0.100 M barium hydroxide, Ba(OH)b, is needed to completely neutralize 25.0 mL of 1. 0.100 M hydrochloric acid, HCI? (A) 12.5 mL (C) 50.0 ml What are the Bronsted-Lowry bases in this reaction? (B) 250 mL (D) 75.0 mL 2. NH,(aq) + H2O(l) 근 NH'(aq) + OH-(hq) (B) HO and NH4 D) NH. and OH (A) NH and OH (C) NH, and H.O 3. What is the conenration of hydroxide ion in 0.015 M HCI(aq)...
please circle the correct answer. don't worry about showing
work.
1) of the species below, only_ _ is not an electrolyte. A) HCI B) Rb2S04 C) Ar D) KOH E) NaCl 2) Aqueous potassium chloride will react with which one of the following in an exchange (metathesis) reaction? A) calcium nitrate B) sodium bromide C) lead nitrate D) barium nitrate E) sodium chloride 3) When aqueous solutions of are mixed, a precipitate forms. A) NiBr, and AgNO, B) Nal and...
please answer all questions and show work?
Home assignment: Chapter 4: Aqueous Reactions and Solution Stoichiometry 17) An aliquot (28.7 ml.) of a KOH solution required 31.3 mL of 0.118 M HCl for neutralization. What mass (g) of KOH was in the original sample? A) 1.64 B) 7.28 C) 0.173 D) 0.207 E) 0.414 18) Which of the following would require the largest volume of 0.100 M sodium hydroxide solution for neutralization? A) 10,0 mL of 0.0500 M phosphoric acid...
m Stoichiometry #2 At Home Practice • Show all work using the factor label method • Use units and label chemical formulas for all conversion factors • Report final answer with the correct number of slunificant figures, unit and chemical formula What volume, in L of 0.250 MKCI will completely react with 0.175 L of a 0.225 M Pb(NO,h solution based upon the following equation rrrrrrrr 2 KCl(aq) + Pb(NO3)(aq) → PbCI:(s) + 2 KNO3(aq) Show your work Final Answer...
QUESTIONS (Show your work) 1. 1, In a titration experiment, 0.250 M KOH is added from a buret to 27.4 mL of a 0.154 M HSO, solution and reacts according to the equation: H;SO. (aq)- 2 KOH (aq) -- K.SO. (aq)+ 2 HO (aq) How many milliliters of potassium hydroxide solution have been added at the equivalence point (end point)? 2. In a titration experiment,, 0.375 M NaOH is added from a buret to 31.2 mL of a 0.482 M...
can you please show work? also pretend like i didnt even write
anything on there
1. For questions 1-2 A) Write the molecular equation and balance the equation, B) Identify the precipitat that forms (if any) and C) Write the net ionic equation when the following aqueous solutions are mixed. 1. Sodium acetate and hydrochloric acid Chaco CH₂ Cook cag) molecular A) Nathan HCl(aq) Na Chat Hollow B) Nach Net: C) Nača) * O cant on - Nalles) + Mangan)...
3.355 M K2SO4 solution can be prepared by A) dilution of 500.0 mL of 1.00 MK2SO4 to 1.00 L B) dissolving 46.7 g of K2SO4 in water and diluting to 500.0 ml, then diluting 25.0 ml of this solution to a total volume of 500.0 mL C) dissolving 46.7 g of K2SO4 in water and diluting to a total volume of 250.0 mL D) dilution of 1.00 mL of 0.355 M K2SO4 to 1.00 L E) diluting 46.7 mL of...
please answer all questions and show work?
19) A 36,3 mL aliquot of 0.0529 MH,SO, (aq) is to be titrated with 0.0411 M NaOH(aq). What volume (ml) of base will it take to reach the equivalence point? A) 93.4 B) 46.7 C) 187 D) 1.92 E) 3.84 20) What volume (mL) of a concentrated solution of sodium hydroxide (6.00 M) must be diluted to 200.0 mL to make a 0.880 M solution of sodium hydroxide? A) 2.64 B) 176 C)...
4. You will conduct the two solvation reactions and three neutralization reactions in this experiment. In the space provided below, write the balanced net ionic reaction equations from the descriptions. Use the table of thermodynamic data in your text (AHf(NaOH(s)= -425.61 kJ-mol) to calculate the molar enthalpy of the reactions. These will be the accepted values you will compare to the experimental values you calculate using data collected during the experiment. Part I: Solid sodium hydroxide is combined with water...
Experiment 11: Titration Pre-Lab Report Sheet Name Lab Section: Show your work for any calculations. 1. Consider the reaction of sulfuric acid, H,SO., with sodium hydroxide, NaOH. H2SO (aq) + 2NaOH(aq) → 2 H2O(l) + Na:SO (aq) Suppose a beaker contains 35.0 ml of 0.175 MH SO. How many moles of NaOH are needed to react completely with the sulfuric acid? 2. In the titration of total acid with sodium hydroxide, NaOH, it was determined that 36,03 mL of 0.0980...
What volume (in mL) of 0.100 M barium hydroxide, Ba(OH)b, is needed to completely neutralize 25.0 mL of 1. 0.100 M hydrochloric acid, HCI? (A) 12.5 mL (C) 50.0 ml What are the Bronsted-Lowry bases in this reaction? (B) 250 mL (D) 75.0 mL 2. NH,(aq) + H2O(l) 근 NH'(aq) + OH-(hq) (B) HO and NH4 D) NH. and OH (A) NH and OH (C) NH, and H.O 3. What is the conenration of hydroxide ion in 0.015 M HCI(aq)...
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