Homework Answers
Answer: A) Since side 2 (2M NaCl) has higher concentration than side 1 (1M NaCl), after t0 water will move from side 1 to side 2 till both the solution acquire equal concentrations. After long time the level of side 2 will be increases.
Answer: B) Yes
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2. Consider the following experimental apparatus, where a glass chamber is separated by a rigid glass...
TOT wOUTO NO. Stick-off Plata (metal 6mm or glass 12 mm thick) Apparatus: Balance Readable to...
TOT wOUTO NO. Stick-off Plata (metal 6mm or glass 12 mm thick) Apparatus: Balance Readable to 0.1 kg) compacting bar (1.8 +/- 0.1 kg) Vibrator (Frequency 70000 vibrations / min.) Container Trial No 1 Trial No 2 Trial No. 3 Mix 1 20% GGBS TRUE Sourso of Mix Time of Concrete Production Elapsed Time: Slump Form: a. True b. Shoar c. Collapse Slump Value SP I Slump value + SP Temperature of Frosh Concreto Weight of Dry Empty Container Weight...
Indicate whether the following experimental mistake will increase, decrease, or have no effect on the calculated...
Indicate whether the following experimental mistake will increase, decrease, or have no effect on the calculated value of R. A student completed the experiment without waiting for the test tube to cool after heating. Select ALL of the correct answers. a. All measurements should be made at the same temperature. b. The volume measured from the beaker will be high. c. The measured temperature is room temperature. d. The calculated value of Ris low. e. The calculated value of Ris...
i need help with this lab report effects of temperture/ enzyme concetration/ and pH on enzyme...
i
need help with this lab report effects of temperture/ enzyme
concetration/ and pH on enzyme activity
those are the experemint paper and results
Exercise 5: Factors Effecting Enzyme Activity A. Testing the Effect of Temperature on Enzyme Activity The purpose of this exercise is to determine the effect of temperature on enzyme activity Materials Large plastic bin Reaction chamber with rubber stopper and tube to bom 50 mL graduated cylinder beliet o bs Filter paper mot o r.com Liver...
Please answer the following questions/fill in the data tables based on the following experiment. EXPERIMENTAL PROCEDURE:...
Please answer the following questions/fill in the data tables based on the following experiment. EXPERIMENTAL PROCEDURE: Place sodium hydroxide (2.500 g) in a 100 mL Erlenmeyer flask and add water (25.0 mL) and ethanol (20.0 mL). Add a magnetic stirrer bar and stir until all the NaOH has dissolved. To a second reaction vessel, add benzaldehyde (2.650 g, 0.025 mol) and acetone (0.725 g, 0.0125 mol). Add approximately half of the aldehyde-ketone solution to the sodium hydroxide solution, and stir...
i uploaded everything that was given. Where would I find the experiemental values? Complete the calcula...
i
uploaded everything that was given. Where would I find the
experiemental values?
Complete the calculation summary below. READ THE EXPERIMENTAL DISCUSSION FIRST! REPORT ALL ANSWERS TO THE CORRECT SIGNIFICANT FIGURES. SHOW CALCULATION SET-UP on the next page. PART B: Molarity Determination via Solution Stoichiometry 7.625 g Mass of Empty 50 mL Beaker 7.976 g Mass of Beaker and NaCl (final heating) Mass of NaCl Produced (Experimental Yield of NaCl) moles Moles of Na,CO, Consumed 0.00500 Liter Volume of Na,CO,...
Calculation required for Q. 2: Calculation of mass of CaCO3 sample for analysis.
calculation required for Q. 2: Calculation of mass of CaCO3
sample for analysis.
solid calcium carbhotae samples, calcium bicarbonate, CalHCO), i abo prscn. 1. In some calciunm for its reaction with hydrochloric acid. (og) 2 Experimental Procedure, Part A.2a. Complete the calculation required to appear on the Report Sheet (here and Report Sheet). 3. a. Experimental Procedure, Part A.3b. Explain how a water-filled graduated cylinder is inverted in a pan of water. b. Experimental Procedure, Part A.4. What is the...
Please answer all the blanks (volume if H2 and everything in analysis). TIA! Data 5 1...
Please answer all the blanks (volume if H2 and
everything in analysis). TIA!
Data 5 1 oong 0.00 10.5ml 2 o.olag 0.00 11.0 Trial 3 o.org 0.00 12.00 o Daag o.albg 0.00 10.0 ml 11.5ml Mass of Mg (g) Initial volume of Syringe (mL) Final volume of Syringe (mL) Volume of H (mL) Barometric pressure (torr) Ambient temperature (°C) Vapor pressure of H2O (torr) 779.314har 23. Oi 21.0 forr TA.314tar 23.0c 179.3 14ton 23.0¢ 779.314 ton 23.0c 779.31472 23.0c 21.0...
need help with questions EXPERIMENT 9: ELECTROLYSIS AND AVOGADRO'S NUMBER QUESTIONS 1. What solution is used...
need help with questions
EXPERIMENT 9: ELECTROLYSIS AND AVOGADRO'S NUMBER QUESTIONS 1. What solution is used in the apparatus for this experiment? a. Would anything else work? b. If so, what are some examples? 2. What gas forms at the cathode in this experiment? 3. What gas forms at the anode in this experiment? 4. How is the temperature of each of the gases determined? EXPERIMENT ELECTROLYSIS & AVOGADRO'S NUMBER UUUUUUUUUUU INTRODUCTION Electrolysis is the process of causing a chemical...
With the data given, help on the calculations please - Tes Name Determination of the Gas...
With the data given, help on the calculations please
- Tes Name Determination of the Gas Constant, R, and the Purity of KCIO, Data Unknown number or letter Mass of test tube and iron (IIT) oxide 44.5928 Mass of test tube, iron (III) oxide and sample 44.979 8 Mass of test tube and contents after heating 44.8488 Volume of water displaced Barometric pressure 976 mbar Temperature of water temperature of O, 23 Vapor pressure of water at this temperature 21.068_mm...
Experimental technique 5. [1pt] Which of the following statements are true for this experiment? E.g., enter...
Experimental technique
5. [1pt]
Which of the following statements are true for this experiment?
E.g., enter AB. If none are true, enter N. You have 4
tries.
Everyone must wear safety glasses.
For each launch angle, the projectile range is measured for one
speed setting.
Never look into the barrel of the launcher when it is
loaded.
The launch angle θ measured using the plumb line is the angle of
the launcher with respect to the vertical.
The projectile is...
TOT wOUTO NO. Stick-off Plata (metal 6mm or glass 12 mm thick) Apparatus: Balance Readable to 0.1 kg) compacting bar (1.8 +/- 0.1 kg) Vibrator (Frequency 70000 vibrations / min.) Container Trial No 1 Trial No 2 Trial No. 3 Mix 1 20% GGBS TRUE Sourso of Mix Time of Concrete Production Elapsed Time: Slump Form: a. True b. Shoar c. Collapse Slump Value SP I Slump value + SP Temperature of Frosh Concreto Weight of Dry Empty Container Weight...
Indicate whether the following experimental mistake will increase, decrease, or have no effect on the calculated value of R. A student completed the experiment without waiting for the test tube to cool after heating. Select ALL of the correct answers. a. All measurements should be made at the same temperature. b. The volume measured from the beaker will be high. c. The measured temperature is room temperature. d. The calculated value of Ris low. e. The calculated value of Ris...
i
need help with this lab report effects of temperture/ enzyme
concetration/ and pH on enzyme activity
those are the experemint paper and results
Exercise 5: Factors Effecting Enzyme Activity A. Testing the Effect of Temperature on Enzyme Activity The purpose of this exercise is to determine the effect of temperature on enzyme activity Materials Large plastic bin Reaction chamber with rubber stopper and tube to bom 50 mL graduated cylinder beliet o bs Filter paper mot o r.com Liver...
i
uploaded everything that was given. Where would I find the
experiemental values?
Complete the calculation summary below. READ THE EXPERIMENTAL DISCUSSION FIRST! REPORT ALL ANSWERS TO THE CORRECT SIGNIFICANT FIGURES. SHOW CALCULATION SET-UP on the next page. PART B: Molarity Determination via Solution Stoichiometry 7.625 g Mass of Empty 50 mL Beaker 7.976 g Mass of Beaker and NaCl (final heating) Mass of NaCl Produced (Experimental Yield of NaCl) moles Moles of Na,CO, Consumed 0.00500 Liter Volume of Na,CO,...
calculation required for Q. 2: Calculation of mass of CaCO3
sample for analysis.
solid calcium carbhotae samples, calcium bicarbonate, CalHCO), i abo prscn. 1. In some calciunm for its reaction with hydrochloric acid. (og) 2 Experimental Procedure, Part A.2a. Complete the calculation required to appear on the Report Sheet (here and Report Sheet). 3. a. Experimental Procedure, Part A.3b. Explain how a water-filled graduated cylinder is inverted in a pan of water. b. Experimental Procedure, Part A.4. What is the...
Please answer all the blanks (volume if H2 and
everything in analysis). TIA!
Data 5 1 oong 0.00 10.5ml 2 o.olag 0.00 11.0 Trial 3 o.org 0.00 12.00 o Daag o.albg 0.00 10.0 ml 11.5ml Mass of Mg (g) Initial volume of Syringe (mL) Final volume of Syringe (mL) Volume of H (mL) Barometric pressure (torr) Ambient temperature (°C) Vapor pressure of H2O (torr) 779.314har 23. Oi 21.0 forr TA.314tar 23.0c 179.3 14ton 23.0¢ 779.314 ton 23.0c 779.31472 23.0c 21.0...
need help with questions
EXPERIMENT 9: ELECTROLYSIS AND AVOGADRO'S NUMBER QUESTIONS 1. What solution is used in the apparatus for this experiment? a. Would anything else work? b. If so, what are some examples? 2. What gas forms at the cathode in this experiment? 3. What gas forms at the anode in this experiment? 4. How is the temperature of each of the gases determined? EXPERIMENT ELECTROLYSIS & AVOGADRO'S NUMBER UUUUUUUUUUU INTRODUCTION Electrolysis is the process of causing a chemical...
With the data given, help on the calculations please
- Tes Name Determination of the Gas Constant, R, and the Purity of KCIO, Data Unknown number or letter Mass of test tube and iron (IIT) oxide 44.5928 Mass of test tube, iron (III) oxide and sample 44.979 8 Mass of test tube and contents after heating 44.8488 Volume of water displaced Barometric pressure 976 mbar Temperature of water temperature of O, 23 Vapor pressure of water at this temperature 21.068_mm...
Experimental technique
5. [1pt]
Which of the following statements are true for this experiment?
E.g., enter AB. If none are true, enter N. You have 4
tries.
Everyone must wear safety glasses.
For each launch angle, the projectile range is measured for one
speed setting.
Never look into the barrel of the launcher when it is
loaded.
The launch angle θ measured using the plumb line is the angle of
the launcher with respect to the vertical.
The projectile is...
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