Homework Answers
Mass of KHT = 1.0134 g
Molar mass of KMT ( KC4H6O8)
= 39 + (4x12) + (1x6) + (8x16)
= 221 g/mol
Moles of KMT = given mass / molar mass
= 1.0134/221
= 0.0045 moles
As, KHT 
K+ + HT-
So moles and concentration of KHT = moles and concentration of K+ = moles and concentration of HT-
![2 0.03498L/5665°c /332.5 l - moles = 0.0045 =10.1286 volume 0.03498 ksp= [kt] [HT] = (0-286] (0.1286] AGE-RT ln kop a 0.0165](http://img.homeworklib.com/questions/ebd320b0-d06f-11eb-819f-11e4b028d059.png?x-oss-process=image/resize,w_560)
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1. Mass of KHT 1.0134 g 2. Molar Mass of KHT (KCHO) 3. Moles of KHT*...
Exact mass of sodium bicarbonate: 2.110g Molar mass of sodium bicarbonate: 84.007 g/mol Molar mas...
Exact mass of sodium bicarbonate: 2.110g
Molar mass of sodium bicarbonate: 84.007 g/mol
Molar mass of sodium acetate: 82.034 g/mol
After you have recorded and any other glassware you have used. All waste can go down the sink. the mass of the beaker after the reaction, you may rinse out the beaker 10. CALCULATIONS: a) Rewrite the balanced chemical equation here Calculate the theoretical amount of sodium acetate that should be formed in the reaction (follow steps 1-3 below). b)...
calculate the number of moles of BaF2 in a 10.0g sample Experiment 9 Molar Mass of...
calculate the number of moles of BaF2 in a 10.0g sample
Experiment 9 Molar Mass of a Volatile Liquid 75 Date: Name: Experiment 9 Molar Mass of a Volatile Liquid Questions and Problems (May be assigned before or after the experiment, depending on your instructor.) (Show all calculations where appropriate.) 1. Show your work and convert: a) 25.0°C to K b ) 300 K to °C c) 750 torr to mm Hg KERST 25B 300-C+273.15 Ke 298.15 -273.15 24.85=0 d)...
How do you solve Part D. Calculations (Moles of vapor, mass of vapor, and molar mass...
How do you solve Part D.
Calculations (Moles of vapor, mass of vapor, and molar mass of
vapor)
3. a. The following data were recorded in determining the molar mass of a volatile liquid following the Experimental Procedure of this experiment. Complete the table for analysis. (See Report Sheet.) Record calculated values with the correct number of significant figures. Calculation Zone 74.722 Part D.1 98.7 74.921_ Part D.2 A. Preparing the Sample 1. Mass of dry flask, foil, and rubber...
1. Complete the table below. #of moles Substance Mass (g) Molar mass (g/mol) a. Aspirin tablet (CoH&O) b. Woode...
1. Complete the table below. #of moles Substance Mass (g) Molar mass (g/mol) a. Aspirin tablet (CoH&O) b. Wooden stick (CH2O) 0.325 14.482 c. Copper wire (Cu) 1.809 Show work below. a. b. с.
Table 2: Sugar (Sucrose) Data Mass of unchewed gum (g) Mass of chewed gum (g) Mass...
Table 2: Sugar (Sucrose) Data Mass of unchewed gum (g) Mass of chewed gum (g) Mass of sugar (g) Percent of sugar in gum 5.4 3 2.4 4400 Post-Lab Questions 1. What is the percent sugar? Show your calculations. 2. What is the molar mass of sugar (sucrose, C12H22011)? Show your calculations. 3. Convert the mass of dissolved sugar to moles. Show your calculations. 4. Convert the moles of sugar to molecules of sugar. Show your calculations.
D. MORE PRACTICE... Molar mass (g/mol) of moles 1. Complete the table below. Substance Mass® 2....
D. MORE PRACTICE... Molar mass (g/mol) of moles 1. Complete the table below. Substance Mass® 2. Aspirin tablet (C4H4O) 0.325 b. Wooden stick LCH:0) 14.482 c. Copper wire (Cu) 1.809 Show work below. 2. A substance has a mass of 90.10 grams and contains 3.02 x 10" molecules. Which of the 3 substances in the chart above is it? Explain. 165 3. Find the % composition of each element in aspirin.
D. MORE PRACTICE... 1. Complete the table below. Massm m # moles Substance Mass (g) Molar...
D. MORE PRACTICE... 1. Complete the table below. Massm m # moles Substance Mass (g) Molar mass (g/mol) of moles a. Aspirin tablet C.H.O.) 0.325 b. Wooden stick | (CHO) 14.482 c. Copper wire (Cu) Show work below. 1.809 2. A substance has a mass of 90.10 grams and contains 3.02 x 10 molecules. Which of the 3 substances in the chart above is it? Explain. 0 2 3 Fird noo or mores find mm mass per ind look at...
1) For the following determine the molecular weight and the molar mass. Round all mass to two decimal points. (5) S...
1) For the following determine the molecular weight and the molar mass. Round all mass to two decimal points. (5) Substance Melecular weight am Molar mass (g) LiP MON ZASO, Nichek) nitrate Irell) phosphate For the following mole calculations use dimensional analysis, showing the canceling of the units, and retain in your answer the number of significant figures in the measurements that is initially given to you. 2) Convert the following mass values to moles or mole values to masses....
im not sure if run 1 is correct. can someone help me with run 2? thanks...
im not sure if run 1 is correct. can someone help me with run
2? thanks
Name: Partner(s) Name Date: Part A: Molar Solubility and Ksp of Calcium Hydroxide Molarity of standardized HCl solution (mol/L): 0.050 44 RUN 1 RUN 2 Initial buret reading (mL) 0.00 0.00 Volume of HCl added at equivalence point (mL) 192 19.4 Volume of HCI added at equivalence point (L) og 10.194 10.875 mol 10-05) Moles of HCI added at equivalence point Moles of OH...
1. The molar solubility of Ce(OH), is 5.2 x 10*Mat 25 °c. Calculate K for Ce(OH),...
1. The molar solubility of Ce(OH), is 5.2 x 10*Mat 25 °c. Calculate K for Ce(OH), 2. Calculate the solubility of Be(10.), in moles/L and g/L. K -1.57x 10 3. Will a precipitate of Ag.PO, form if 35 ml of 0.00725 M ARNO, is added to 165 ml of 0.0583 M Na,PO,? Show work. Ksp = 8.89 x 10" for Ag, PO, 4. Calculate the concentration of Bain solution from Ba.(PO), Ksp -6.0 x 10" for Ba,(PO), 5. a) NaOH...
Exact mass of sodium bicarbonate: 2.110g
Molar mass of sodium bicarbonate: 84.007 g/mol
Molar mass of sodium acetate: 82.034 g/mol
After you have recorded and any other glassware you have used. All waste can go down the sink. the mass of the beaker after the reaction, you may rinse out the beaker 10. CALCULATIONS: a) Rewrite the balanced chemical equation here Calculate the theoretical amount of sodium acetate that should be formed in the reaction (follow steps 1-3 below). b)...
calculate the number of moles of BaF2 in a 10.0g sample
Experiment 9 Molar Mass of a Volatile Liquid 75 Date: Name: Experiment 9 Molar Mass of a Volatile Liquid Questions and Problems (May be assigned before or after the experiment, depending on your instructor.) (Show all calculations where appropriate.) 1. Show your work and convert: a) 25.0°C to K b ) 300 K to °C c) 750 torr to mm Hg KERST 25B 300-C+273.15 Ke 298.15 -273.15 24.85=0 d)...
How do you solve Part D.
Calculations (Moles of vapor, mass of vapor, and molar mass of
vapor)
3. a. The following data were recorded in determining the molar mass of a volatile liquid following the Experimental Procedure of this experiment. Complete the table for analysis. (See Report Sheet.) Record calculated values with the correct number of significant figures. Calculation Zone 74.722 Part D.1 98.7 74.921_ Part D.2 A. Preparing the Sample 1. Mass of dry flask, foil, and rubber...
1. Complete the table below. #of moles Substance Mass (g) Molar mass (g/mol) a. Aspirin tablet (CoH&O) b. Wooden stick (CH2O) 0.325 14.482 c. Copper wire (Cu) 1.809 Show work below. a. b. с.
Table 2: Sugar (Sucrose) Data Mass of unchewed gum (g) Mass of chewed gum (g) Mass of sugar (g) Percent of sugar in gum 5.4 3 2.4 4400 Post-Lab Questions 1. What is the percent sugar? Show your calculations. 2. What is the molar mass of sugar (sucrose, C12H22011)? Show your calculations. 3. Convert the mass of dissolved sugar to moles. Show your calculations. 4. Convert the moles of sugar to molecules of sugar. Show your calculations.
D. MORE PRACTICE... Molar mass (g/mol) of moles 1. Complete the table below. Substance Mass® 2. Aspirin tablet (C4H4O) 0.325 b. Wooden stick LCH:0) 14.482 c. Copper wire (Cu) 1.809 Show work below. 2. A substance has a mass of 90.10 grams and contains 3.02 x 10" molecules. Which of the 3 substances in the chart above is it? Explain. 165 3. Find the % composition of each element in aspirin.
D. MORE PRACTICE... 1. Complete the table below. Massm m # moles Substance Mass (g) Molar mass (g/mol) of moles a. Aspirin tablet C.H.O.) 0.325 b. Wooden stick | (CHO) 14.482 c. Copper wire (Cu) Show work below. 1.809 2. A substance has a mass of 90.10 grams and contains 3.02 x 10 molecules. Which of the 3 substances in the chart above is it? Explain. 0 2 3 Fird noo or mores find mm mass per ind look at...
1) For the following determine the molecular weight and the molar mass. Round all mass to two decimal points. (5) Substance Melecular weight am Molar mass (g) LiP MON ZASO, Nichek) nitrate Irell) phosphate For the following mole calculations use dimensional analysis, showing the canceling of the units, and retain in your answer the number of significant figures in the measurements that is initially given to you. 2) Convert the following mass values to moles or mole values to masses....
im not sure if run 1 is correct. can someone help me with run
2? thanks
Name: Partner(s) Name Date: Part A: Molar Solubility and Ksp of Calcium Hydroxide Molarity of standardized HCl solution (mol/L): 0.050 44 RUN 1 RUN 2 Initial buret reading (mL) 0.00 0.00 Volume of HCl added at equivalence point (mL) 192 19.4 Volume of HCI added at equivalence point (L) og 10.194 10.875 mol 10-05) Moles of HCI added at equivalence point Moles of OH...
1. The molar solubility of Ce(OH), is 5.2 x 10*Mat 25 °c. Calculate K for Ce(OH), 2. Calculate the solubility of Be(10.), in moles/L and g/L. K -1.57x 10 3. Will a precipitate of Ag.PO, form if 35 ml of 0.00725 M ARNO, is added to 165 ml of 0.0583 M Na,PO,? Show work. Ksp = 8.89 x 10" for Ag, PO, 4. Calculate the concentration of Bain solution from Ba.(PO), Ksp -6.0 x 10" for Ba,(PO), 5. a) NaOH...
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