Using your data from the experiment, calculate the initial moles of HCl that you started with....
Using your data from the experiment, calculate the initial moles of HCl that you started with. ( for this problem you will use your initial concentration of HCl and your 50 mL volume to solve).
| Trial 1 | trail 2 | |
| Mass of KHP (KC8H5O4) (g) | .29 g | .21 g |
| Moles of KHP | .000422 | .00422 |
| Moles of NaOH | .01M | .01M |
| Volume of NaOH | .0247 | .0222 |
| Molarity of NaOH | .0575 | .0464 |
| Average molarity of NaOH | .0516 M | |
Homework Answers
Number of mole s= molarity * volume
Average volume of NaOH = 0.0247 +0.022
= 0.02345 mlNaOH
mole of NaOH = molarity * volume in L
= 0.1* 0.02345/1000
= 2.345*10^-6 mole NaOH
The recation between HCl and NaOH is as follows:
HCl + NaOH= NaCl+ H2O
Therefore 2.345*10^-6 mole NaOH reacts with 2.345*10^-6 mole of HCl
Molarity = number of moles / volume in L
Here volume of HCl= 50 ml
0.050 L
Thus
Molarity = 2.345*10^-6 mole HCl/0.050 L
= 4.69*10^-5 M
Add Answer to:
Using your data from the experiment, calculate the initial moles
of HCl that you started with....
Using your data, calculate the moles and mass of acetylsalicylic acid in each tablet (molar mass ...
Using your data, calculate the moles and mass of acetylsalicylic
acid in each tablet (molar mass = 180.16 g/mol).
Data Concentration of NaOH 107 M Solutions Mass of Aspirin Tablet #11 Mass of Aspirin Tablet #21 Volume of NaOH mixed with Tablet #1 | Volume of NaOH mixed with tablet #2 Value .37 .36 50 mL 50 mL Standardization of HCl Trial #1 Value Mass of Na2CO3 .070 a Initial Volume of HCI in burettel 2.20 mL Volume of HCl...
Calculate the [HCL], [H3O+], pH, pOH and concentration of [OH-]. Data Table: Molarity of Standardized NaOH...
Calculate the [HCL], [H3O+], pH, pOH and concentration of
[OH-].
Data Table: Molarity of Standardized NaOH RM Trial 1 Data Trail 2 Trial Volume of HCI 25 ml - 25mL NaOH, Initial buret reading, ml NaOH, Final buret reading ml Volume of NaOH used (ml) 22.55 ml 22.35m! 2256 x 1?L 22.35x10L Volume of NaOH used (L) Measured pH at endpoint Moles of NaOH 435x16?mos 4.31x102015 4.35x10 2 4.31X10 mos Moles of HCI Molarity of HCI 1724M 1.74M 1.732M Average...
can you help with the balance equation and also the calculations at the bottom of the...
can you help with the balance equation and also the
calculations at the bottom of the sheet thank you
Experiment 17 Acid Base Reactions and Titration Report Sheet Name Section Number Provide the balanced equation for standardizing NaOH below. Table L. Standardization of NaOH Trial Trial 2 Trial 3 Initial mass of flask (g) 85.85 92.9285.80 Mass of flask with KHP (g) Initial buret reading of NaOH (mL) 11.87 19.21 4.21 Initial-buret-reading of NaOH (mL) Final buret reading of NaOH...
Questions: A. From the standardization data, calculate the molarity of the sodium hydroxide solution for each...
Questions:
A. From the standardization data, calculate the molarity of the
sodium hydroxide solution for each trail. Average the values and
enter the average in the Standardization Data Table.
B. From the equivalent mass data, calculate the equivalent mass
of the unknown acid for each trial. Average the values and enter
the average in the Equivalent Mass Data Table.
Acid-Base Titrations continued Standardization Data Table Trial 1 Trial 2 Trial 3 Mass KHP Final Volume, mL Initial Volume, ml Volume...
Concentration of HCL. Im suppose to use the number from the pervious problem to solve this...
Concentration of HCL. Im suppose to use the number from the
pervious problem to solve this one but im not sure how.
Calculations for Molarity of the Molarity. of Molarity of the NaOH Solution for each Run and the .35489 (204.9.fol.02 ) 210.079 wil net wa)(0242loose mobile 3533 g 204.22g/mol.02142) 10.081 milk Average= (.079+.082+.081/3 +0.081 mol/d Determination of the Concentration of an HCI Solution UNKNOWN NUMBER_1 Trail 1 Trail 2 1 10.ome Trail 3 10.0mL 10.0mL 0.00ML 0.00ML 0.00mL 12.0mL...
please type answer or fill in the blanks PLEASE UU ANITOUESTIONS EXPERIMENT 10 PRE-LABORATORY STANDARDIZATION OF...
please type answer or fill in the blanks PLEASE
UU ANITOUESTIONS EXPERIMENT 10 PRE-LABORATORY STANDARDIZATION OF A SODIUM HYDROXIDE SOLUTION NAME DATE 1. What is the purpose of this experiment? 2. A sample of KHP has a mass of 2.345 g is used for a titration, how many moles of KHP is this sample? 3. How many moles of NaOH would be needed to reach the endpoint of this titration with sample of KHP from the previous question? 4. If...
Data the experiment Record For the lab report, attach this data sheet (signed by your TA) to your...
please write out calculations for each box missing an answer
data the experiment Record For the lab report, attach this data sheet (signed by your TA) to your calculations page. REPORT ALL VALUES TO AT LEAST THREE SIGNIFICANT FIGURES. READ YOUR BURETTE TO THE NEAREST 0.05 mL increment. for on this sheet. Do your calculations on a separate piece of paper. Part One-Standardization of a NaOH solution of approximately 0.1 M. Trial 1 | Trial 2 | Trial 3 Mass...
Calculate and enter the molarity of your three HCl standardization trials using the volume of standardized...
Calculate and enter the molarity of your
three HCl standardization trials using the volume of standardized
NaOH solution required for each and the average molarity of the
NaOH solution from the standardization trials with KHP. You should
report 3 significant figures, e.g. 0.488 M.
I need to find the average molarity of my NaOH to solve this,
but I am unsure on how to solve for it. It had a concentration of
0.1 M. Thank you!
Scoring Scheme: 3-3-2-1. Calculate...
I MAINLY NEED HELP ON TABLES PLS HELP THANK YOU Materials: NaOH MW = 40 g/mL,...
I MAINLY NEED HELP ON TABLES
PLS HELP THANK YOU
Materials: NaOH MW = 40 g/mL, KHP - potassium hydrogen phthalate, KHC2H4O4, MW = 204.23 g/mol. Acetic acid, HC2H302, MW = 60.05 g/mol Part 1: Standardization of NaOH Assume 0.951 g of KHP is weighed and transferred to a 250 mL Erlenmeyer flask. Approximately 50 mL water is added to dissolve the KHP. Note that the exact volume of water is not important because you only need to know the...
moles of oxalix acid moles/molarity of NaOH average molarity volume/molarity of hcl used average molarity NAME...
moles of oxalix acid
moles/molarity of NaOH
average molarity
volume/molarity of hcl used
average molarity
NAME SECTION DATA SHEET LOCKER A CTOR Write a balanced equation for the reaction between H.CO. and NaOH: 90.33/mol 0.878 0836 TRIAL NUMBER a. Mass of oxalic acid used (g) b. Final Buret reading (ml.] c. Initial Buret reading (ml] d. Volume of NaOH used (b-c) Moles of oxalic acid used f. Moles of NaOH used (2 xe) g. Molarity of NaOH (f/d/1000) Average Molarity...
Using your data, calculate the moles and mass of acetylsalicylic
acid in each tablet (molar mass = 180.16 g/mol).
Data Concentration of NaOH 107 M Solutions Mass of Aspirin Tablet #11 Mass of Aspirin Tablet #21 Volume of NaOH mixed with Tablet #1 | Volume of NaOH mixed with tablet #2 Value .37 .36 50 mL 50 mL Standardization of HCl Trial #1 Value Mass of Na2CO3 .070 a Initial Volume of HCI in burettel 2.20 mL Volume of HCl...
Calculate the [HCL], [H3O+], pH, pOH and concentration of
[OH-].
Data Table: Molarity of Standardized NaOH RM Trial 1 Data Trail 2 Trial Volume of HCI 25 ml - 25mL NaOH, Initial buret reading, ml NaOH, Final buret reading ml Volume of NaOH used (ml) 22.55 ml 22.35m! 2256 x 1?L 22.35x10L Volume of NaOH used (L) Measured pH at endpoint Moles of NaOH 435x16?mos 4.31x102015 4.35x10 2 4.31X10 mos Moles of HCI Molarity of HCI 1724M 1.74M 1.732M Average...
can you help with the balance equation and also the
calculations at the bottom of the sheet thank you
Experiment 17 Acid Base Reactions and Titration Report Sheet Name Section Number Provide the balanced equation for standardizing NaOH below. Table L. Standardization of NaOH Trial Trial 2 Trial 3 Initial mass of flask (g) 85.85 92.9285.80 Mass of flask with KHP (g) Initial buret reading of NaOH (mL) 11.87 19.21 4.21 Initial-buret-reading of NaOH (mL) Final buret reading of NaOH...
Questions:
A. From the standardization data, calculate the molarity of the
sodium hydroxide solution for each trail. Average the values and
enter the average in the Standardization Data Table.
B. From the equivalent mass data, calculate the equivalent mass
of the unknown acid for each trial. Average the values and enter
the average in the Equivalent Mass Data Table.
Acid-Base Titrations continued Standardization Data Table Trial 1 Trial 2 Trial 3 Mass KHP Final Volume, mL Initial Volume, ml Volume...
Concentration of HCL. Im suppose to use the number from the
pervious problem to solve this one but im not sure how.
Calculations for Molarity of the Molarity. of Molarity of the NaOH Solution for each Run and the .35489 (204.9.fol.02 ) 210.079 wil net wa)(0242loose mobile 3533 g 204.22g/mol.02142) 10.081 milk Average= (.079+.082+.081/3 +0.081 mol/d Determination of the Concentration of an HCI Solution UNKNOWN NUMBER_1 Trail 1 Trail 2 1 10.ome Trail 3 10.0mL 10.0mL 0.00ML 0.00ML 0.00mL 12.0mL...
please type answer or fill in the blanks PLEASE
UU ANITOUESTIONS EXPERIMENT 10 PRE-LABORATORY STANDARDIZATION OF A SODIUM HYDROXIDE SOLUTION NAME DATE 1. What is the purpose of this experiment? 2. A sample of KHP has a mass of 2.345 g is used for a titration, how many moles of KHP is this sample? 3. How many moles of NaOH would be needed to reach the endpoint of this titration with sample of KHP from the previous question? 4. If...
please write out calculations for each box missing an answer
data the experiment Record For the lab report, attach this data sheet (signed by your TA) to your calculations page. REPORT ALL VALUES TO AT LEAST THREE SIGNIFICANT FIGURES. READ YOUR BURETTE TO THE NEAREST 0.05 mL increment. for on this sheet. Do your calculations on a separate piece of paper. Part One-Standardization of a NaOH solution of approximately 0.1 M. Trial 1 | Trial 2 | Trial 3 Mass...
Calculate and enter the molarity of your
three HCl standardization trials using the volume of standardized
NaOH solution required for each and the average molarity of the
NaOH solution from the standardization trials with KHP. You should
report 3 significant figures, e.g. 0.488 M.
I need to find the average molarity of my NaOH to solve this,
but I am unsure on how to solve for it. It had a concentration of
0.1 M. Thank you!
Scoring Scheme: 3-3-2-1. Calculate...
I MAINLY NEED HELP ON TABLES
PLS HELP THANK YOU
Materials: NaOH MW = 40 g/mL, KHP - potassium hydrogen phthalate, KHC2H4O4, MW = 204.23 g/mol. Acetic acid, HC2H302, MW = 60.05 g/mol Part 1: Standardization of NaOH Assume 0.951 g of KHP is weighed and transferred to a 250 mL Erlenmeyer flask. Approximately 50 mL water is added to dissolve the KHP. Note that the exact volume of water is not important because you only need to know the...
moles of oxalix acid
moles/molarity of NaOH
average molarity
volume/molarity of hcl used
average molarity
NAME SECTION DATA SHEET LOCKER A CTOR Write a balanced equation for the reaction between H.CO. and NaOH: 90.33/mol 0.878 0836 TRIAL NUMBER a. Mass of oxalic acid used (g) b. Final Buret reading (ml.] c. Initial Buret reading (ml] d. Volume of NaOH used (b-c) Moles of oxalic acid used f. Moles of NaOH used (2 xe) g. Molarity of NaOH (f/d/1000) Average Molarity...
Most questions answered within 3 hours.
-
Where is the error in this code sequence?
String s1 = "Hello";
String s2 = "ello";...
asked 10 months ago -
Financial data for Joel de Paris, Inc., for last year
follow:
Joel de Paris, Inc.
Balance...
asked 10 months ago -
Consider this reaction:
Al2(SO4)3 (aq)+ BaCl3
(aq) Al2Cl6 (aq)- +
3BaSO4(s) . What is the...
asked 10 months ago -
Suppose that Savneet is considering increasing her
recent random sample from 20 car rentals to 40...
asked 10 months ago -
Trucks arrive at an unloading terminal at an average rate of 120
per hour.
Trucks arrive...
asked 10 months ago -
Why are methanol and ethanol completely soluble in water while
octanol is not very little soluble....
asked 10 months ago -
A facilities manager at a university reads in a research report
that the mean amount of...
asked 10 months ago -
When the CuSO4 is rehydrated by adding water to the anhydrous
compound, is this an endothermic...
asked 10 months ago -
A ray of sunlight is passing from diamond into crown glass; the
angle of incidence is...
asked 10 months ago -
A block of mass 0.249 kg is placed on top of a light, vertical
spring of...
asked 10 months ago -
how do the kidneys compensate in the presences of acidosis
a) trigger hyperventilate
b) reserve acid...
asked 10 months ago -
Question 501 pts
The rental rate of capital to the firm increases. Which of the
following...
asked 10 months ago