(3) Explain whether the percent error suggests that too little HCL or too much HCL was...
(3) Explain whether the percent error suggests that too little HCL or too much HCL was added in your titrations.
experimental molarity of NaOH - 0.300 mol/L
actual molarity - 0.430 mol/L
((0.300 - 0.430)/0.430) x 100
percent error = -30.233%
Homework Answers
3) From the given data,
actual molarity = 0.430M
Experimental molarity = 0.300M
Hence, it is clear that experimental molarity is very less when compared to actual molarity.
Also we know that,
HCl + NaOH ----------> NaCl + H2O
From the equation,both the number of moles of HCl and NaOH are in same proportion.
So from experimental value of NaOH, it is clear that Too little HCl is added in the titration.
Add Answer to:
(3) Explain whether the percent error suggests that too little
HCL or too much HCL was...
1 and 2 please -755" 14-ANALYSIS OF SODA ASH EXERCISES 1. 28.92 mL of NaOH were...
1 and 2 please
-755" 14-ANALYSIS OF SODA ASH EXERCISES 1. 28.92 mL of NaOH were required to titrate 0.5982 g of KHP to the phenolphtha- lein end point. 22.41 mL of the same NaOH solution were needed to titrate 25.00 mL of the HCl solution to the phenolphthalein end point. If 34.62 mL of HCl solution were needed to titrate 0.5879 g of the soda ash sample, then what is the percent Na, co, in this soda ash sample?...
Experimental Data and Analysis: Molarity of HCl: 500 mL of 20M Molarity of NaOH: 51.0 ml...
Experimental Data and Analysis: Molarity of HCl: 500 mL of 20M Molarity of NaOH: 51.0 ml of 20 M Trial 1 Trial 2 35.5 22.5 221 T2. Maximum temperature (°C) T1, Minimum temperature (°C) AT (°C) p. Solution's Density V. Total Volume of the Reaction Mixture (mL) c. Solution's Heat Capacity 9. Heat of Neutralization (J) 1.04 g/mL 101.0 3.89 J/g.°C nHCl (mol) = MHCI X VL.HCI or moles of HCI Used (mol) = (Molarity of HCI) (Volume in L...
n dite by dispensing NaOH in in aliquots of -1ml ally and 1-2 drops once you...
n dite by dispensing NaOH in in aliquots of -1ml ally and 1-2 drops once you observe a vanishing observe a vanishing pink color very Make sure to take burett to take burette readings correctly to two places of decimal (XX. ). Very important to learn it will be asked in final exam Accuracy is important Compare both titrations - if the difference in molarity of HCl of the two trials is greater than 5%, perform a third trial for...
I found the PKa1 values through experiment could you show me how to get the percent...
I found the PKa1 values through experiment
could you show me how to get the percent errors and the
percent for organic acid contents
pretty much all the empty spaces. i have no idea where to
start
General Chemistry Il Laboratory / 10 points Experimental Data and Results Data Table 2: Titration of Acids in Juice MeasureNet Station No. N/A Juice Sample Apple Cranberry (Monoprotic) 24.9275 Mass of Sample (9) Diprotic) 24. 6864 Initial Buret Reading (mL) 0.00 0.00 Final...
Average 솨 Verify Hess's L Average ΔΗΝ + Average ΔΗs MR, calculated _ AN: To calculate AHR. calcu...
Average 솨 Verify Hess's L Average ΔΗΝ + Average ΔΗs MR, calculated _ AN: To calculate AHR. calculated take the sum of Average ΔΗΝ and A 4. from question 3. Compare this value to AHR. experimental from question 3. J/mol J/mol -J/mol _ J/mol as compared to ΔHR, experimental- experimental ween ΔΗR, calculated and your measured value ofdHR using the following formula IAHR.calculated- AHR,experimental l AHR,experimental % error 6. Calculate the percent error between your experimental value of AHR and...
Data Standard solution: NaOH concentration 0.25 M Volume of HCl used (Va) Initial NaOH buret reading...
Data Standard solution: NaOH concentration 0.25 M Volume of HCl used (Va) Initial NaOH buret reading Final NaOH buret reading Volume of NaOH used (Vb) Concentration of HCl (Ma) 10.00 ml 2.00 ml 16.10 ml 14.10 ml Determine the Molarity (concentration) of HCI using the data you collected and the titration formula. (The concentration of the NaOH used was 0.25M) Record your answer on your data form. United States Focus 17. It takes 75ml of a 2.5M HCl solution to...
44. For each determination calculate the number of moles of HCl and of Naon that were...
44. For each determination calculate the number of moles of HCl and of Naon that were present when you mixed 50.0 mL of 2.00M HCl with 51.0 mL of 2.00M NaOH, using Equation 5. determination 1 mol HCI determination 2 _mol HCI mol NaOH mol NaOH 5. For each determination, calculate the number of moles of NaOH that reacted when you mixed 51.0 mL of 2.00M NaOH with 50.0 mL of 2.00M HCl. determination 1 determination 2 6. For each...
1. Calculation tasks a) How much water and how much 12M HCl solution (M = 36.5g...
1. Calculation tasks a) How much water and how much 12M HCl solution (M = 36.5g / mol) should be used to prepare 70 ml of this acid solution? b) 3 ml of bromine (d = 3.1 g / cm) was used to carry out the bromination reaction of 3 g phenol. Give the equation for the reaction of phenol with molecular bromine. Calculate the stoichiometric efficiency of the reaction c) To 120 g of a 40% strength NaOH solution...
Acid / Base Titrations: Pre-Laboratory Assignment 1. Give at least two characteristics desirable in a primary...
Acid / Base Titrations: Pre-Laboratory Assignment 1. Give at least two characteristics desirable in a primary standard. 2. Define equivalence point and bitration end point. Do these two points in a titration occur when the same volume of titrant has been added? Explain. 3. A student standardized a NaOH solution using KHC.H.O.. Three different KHC.H.O. samples were dissolved in water and titrated with the same NaOH solution, each to a phenolphthalein end point. The pertinent reaction is: KHC3H404(aq) + NaOH(...
i need help on the second page: "calculate how many mols of HCL you used based...
i need help on the second page:
"calculate how many mols of HCL you used based on the volume
and molarity of the HCL"
and
"enthalpy of reaction" parts
Part B Heat of Reaction for HCl(aq) + NaOH (aq) NaCl (aq) + so H20 (1) Volume of 1.0 M HCl (ml) so 100 23.3 Volume of 1.0 M NaOH (ml) Mass of Solution (8) use 1.00 g/ml Ti solution (temp of HCl just before reaction) T solution (highest temp obtained)...
1 and 2 please
-755" 14-ANALYSIS OF SODA ASH EXERCISES 1. 28.92 mL of NaOH were required to titrate 0.5982 g of KHP to the phenolphtha- lein end point. 22.41 mL of the same NaOH solution were needed to titrate 25.00 mL of the HCl solution to the phenolphthalein end point. If 34.62 mL of HCl solution were needed to titrate 0.5879 g of the soda ash sample, then what is the percent Na, co, in this soda ash sample?...
Experimental Data and Analysis: Molarity of HCl: 500 mL of 20M Molarity of NaOH: 51.0 ml of 20 M Trial 1 Trial 2 35.5 22.5 221 T2. Maximum temperature (°C) T1, Minimum temperature (°C) AT (°C) p. Solution's Density V. Total Volume of the Reaction Mixture (mL) c. Solution's Heat Capacity 9. Heat of Neutralization (J) 1.04 g/mL 101.0 3.89 J/g.°C nHCl (mol) = MHCI X VL.HCI or moles of HCI Used (mol) = (Molarity of HCI) (Volume in L...
n dite by dispensing NaOH in in aliquots of -1ml ally and 1-2 drops once you observe a vanishing observe a vanishing pink color very Make sure to take burett to take burette readings correctly to two places of decimal (XX. ). Very important to learn it will be asked in final exam Accuracy is important Compare both titrations - if the difference in molarity of HCl of the two trials is greater than 5%, perform a third trial for...
I found the PKa1 values through experiment
could you show me how to get the percent errors and the
percent for organic acid contents
pretty much all the empty spaces. i have no idea where to
start
General Chemistry Il Laboratory / 10 points Experimental Data and Results Data Table 2: Titration of Acids in Juice MeasureNet Station No. N/A Juice Sample Apple Cranberry (Monoprotic) 24.9275 Mass of Sample (9) Diprotic) 24. 6864 Initial Buret Reading (mL) 0.00 0.00 Final...
Average 솨 Verify Hess's L Average ΔΗΝ + Average ΔΗs MR, calculated _ AN: To calculate AHR. calculated take the sum of Average ΔΗΝ and A 4. from question 3. Compare this value to AHR. experimental from question 3. J/mol J/mol -J/mol _ J/mol as compared to ΔHR, experimental- experimental ween ΔΗR, calculated and your measured value ofdHR using the following formula IAHR.calculated- AHR,experimental l AHR,experimental % error 6. Calculate the percent error between your experimental value of AHR and...
Data Standard solution: NaOH concentration 0.25 M Volume of HCl used (Va) Initial NaOH buret reading Final NaOH buret reading Volume of NaOH used (Vb) Concentration of HCl (Ma) 10.00 ml 2.00 ml 16.10 ml 14.10 ml Determine the Molarity (concentration) of HCI using the data you collected and the titration formula. (The concentration of the NaOH used was 0.25M) Record your answer on your data form. United States Focus 17. It takes 75ml of a 2.5M HCl solution to...
44. For each determination calculate the number of moles of HCl and of Naon that were present when you mixed 50.0 mL of 2.00M HCl with 51.0 mL of 2.00M NaOH, using Equation 5. determination 1 mol HCI determination 2 _mol HCI mol NaOH mol NaOH 5. For each determination, calculate the number of moles of NaOH that reacted when you mixed 51.0 mL of 2.00M NaOH with 50.0 mL of 2.00M HCl. determination 1 determination 2 6. For each...
1. Calculation tasks a) How much water and how much 12M HCl solution (M = 36.5g / mol) should be used to prepare 70 ml of this acid solution? b) 3 ml of bromine (d = 3.1 g / cm) was used to carry out the bromination reaction of 3 g phenol. Give the equation for the reaction of phenol with molecular bromine. Calculate the stoichiometric efficiency of the reaction c) To 120 g of a 40% strength NaOH solution...
Acid / Base Titrations: Pre-Laboratory Assignment 1. Give at least two characteristics desirable in a primary standard. 2. Define equivalence point and bitration end point. Do these two points in a titration occur when the same volume of titrant has been added? Explain. 3. A student standardized a NaOH solution using KHC.H.O.. Three different KHC.H.O. samples were dissolved in water and titrated with the same NaOH solution, each to a phenolphthalein end point. The pertinent reaction is: KHC3H404(aq) + NaOH(...
i need help on the second page:
"calculate how many mols of HCL you used based on the volume
and molarity of the HCL"
and
"enthalpy of reaction" parts
Part B Heat of Reaction for HCl(aq) + NaOH (aq) NaCl (aq) + so H20 (1) Volume of 1.0 M HCl (ml) so 100 23.3 Volume of 1.0 M NaOH (ml) Mass of Solution (8) use 1.00 g/ml Ti solution (temp of HCl just before reaction) T solution (highest temp obtained)...
Most questions answered within 3 hours.
-
The primary side of a transformer has 935 turns and is connected
to 118 Volts A/C....
asked 31 seconds ago -
One mole of oxygen gas is at a pressure of 5.90 atm and a
temperature of...
asked 2 minutes ago -
This must be done in Java and it must contain a public static
void (string []args)...
asked 3 minutes ago -
An economy has a Cobb–Douglas production function:
Y=Kα(LE)1−αY=Kα(LE)1−α
The economy has a capital share of 0.30,...
asked 18 minutes ago -
60.0 mL of a silver chlorate solution with a concentration of
0.654 M is mixed with...
asked 23 minutes ago -
Asked if he has any regrets about the way he's handled the
coronavirus crisis so far,...
asked 35 minutes ago -
True or False?
Considering a door as a rigid body. Its angular motion happens
in a...
asked 38 minutes ago -
In
IUPAC naming, do we concider the prefix in alphabatizing?
In other words do we look...
asked 43 minutes ago -
If a trust has income required to be distributed of $11,500,
other amounts paid or required...
asked 59 minutes ago -
The degree of ionization of a weak acid
____________________.
Select all that are True.
a) varies...
asked 59 minutes ago -
Cereal for Breakfast. A cereal company claims
70% of Americans start the day with cereal for...
asked 1 hour ago -
An elevator has a placard stating that the maximum capacity is
2400 lblong dash15 passengers. So,...
asked 1 hour ago