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2. In attempting to calculate the density of chloroform, CHCl3, Riley determines the following densities: 1.30...
at 15.0°C 20.0°C, 22.0°C, 25.0°C, Post-Laboratory Questions 1. Write down the values for the density of...
at 15.0°C 20.0°C, 22.0°C, 25.0°C, Post-Laboratory Questions 1. Write down the values for the density of water at 15.0°C, 20. and 28.0°C. a. Compare the values of the density of water at the above temp temperature affect density? If so, state how. Explain your rease Fat the above temperatures. Does b. Would temperature be a significant source of error for this experiment? Explain your reasoning. 2. In attempting to calculate the density of chloroform, CHCl3, Riley determines the following densities:...
Ana lab a student determines the density of a metal object by measuring its mass on...
Ana lab a student determines the density of a metal object by
measuring its mass on a balance and its volume by displacement in a
graduated cylinder
In the lab, a student determines the density of a metal object by measuring its mass on a balance and its volume by displacement in a graduated cylinder. The data collected by the student is shown. mass of object: 46.675 g volume of water in cylinder before object submersed: 29.79 mL volume of...
In the lab, a student determines the density of a metal object by measuring its mass...
In the lab, a student determines the density of a metal object by measuring its mass on a balance and its volume by displacement in a graduated cylinder. The data collected by the student is shown. mass of object: 42.231 g volume of water in cylinder before object submersed: 28.01 mL volume of water + object in cylinder: 34.39 mL Calculate the density of the object. d = g/mL Based on the recorded volume data, and assuming that the student...
Given the following information, calculate the density in g/mL of an irregular solid. Mass of weighing...
Given the following information, calculate the density in g/mL of an irregular solid. Mass of weighing vessel 1.005g Mass of solid + weighing vessel 9.441g Volume of liquid in graduated cylinder 3.45 mL Volume of liquid in graduated cylinder + volume of solid 5.15 mL
ACTIVITY ACTIVITY 2 A Determining the Densities of Solutions 1. Weigh an empty 50-ml graduated cylinder....
ACTIVITY ACTIVITY 2 A Determining the Densities of Solutions 1. Weigh an empty 50-ml graduated cylinder. Record the mass in Data Table 2. 2. Add 5 mL of water (0% sucrose) to the 50-ml graduated cylinder. Use the pipet to add or remove small quantities of liquid so that the water is exactly at the 5-mL mark. 3. Record the Mass of Solution + Graduated Cylinder in Data Table 2. 4. Add more water until the cylinder contains 10 mL...
Q3) A drug compound for anticancer treatment, Platinol has a base structure of Pt(NH3)2Cl2. A var...
Q3) A drug compound for anticancer treatment, Platinol has a base structure of Pt(NH3)2Cl2. A variant form of the drug has the formula Pt2(NH3)4Cl3. For the variant form, calculate the mass percent of platinum. hint: Molar masses used Pt 195.084g/mol, N 14.0067g/mol, H 1.008g/mol, and Cl 35.453 g/mol. Q4) When Barium (density is 3.5 g/mL) reacts with sulfur (density is 2.04 g/mL) to form barium sulfide, each barium atom reacts with one sulfur atom. The mass ratio of barium to...
4. Suppose that a student performed the experiment and calculations perfectly as directed except that, unknown...
4. Suppose that a student performed the experiment and calculations perfectly as directed except that, unknown to the student, the balance was not zeroed but weighed 0.100 g too high throughout the experiment. Would the calculated val- ue for the density of the unknown liquid be correct? That is, would it be equal to, higher than, or lower than the true value. Explain your answer in clear and correct English. 16 LABORATORY EXPERIMENTS IN GENERAL CHEMISTRY ed in question 4...
A student obtained the following data when he performed Part 2 of the experiement. Calculate the...
A student obtained the following data when he performed Part 2
of the experiement. Calculate the volume of dry hydrogen gas at
STP.
volume of gas in inverted graduated cylinder 42.6 ml
barometer reading 749.3 Torr
water temperature 19.6 degrees Celsius
thanks!
Perlment to t of btained the following data when he performed Part 2 of the , suden en e late the volu on Ca en fagulate the volume of dry hydrogen gas at STP. experiment yolume of gas...
5 Calculate the following from the given values (3 points each A and B) A) A...
5 Calculate the following from the given values (3 points each A and B) A) A solution has a pH- 4.85 measured by using a phi meter (Use a scientific calculator for answering a) a) What is the hydrogen ion concentration in this solution [H'] b) What is the pOH of this solution? b) Is this solution acidic, basic or neutral? (B) A laboratory solution has a concentration of hydrogen ions as H-1.0x 10-10 mol/L a. What is the pH...
DATA SHEET: LAB IV Measurements and Density Determination 14. Volume of metal piece 2 by water...
DATA SHEET: LAB IV Measurements and Density Determination 14. Volume of metal piece 2 by water displacement: 19.8ml (calculate) 15. Initial volume of water in graduated cylinder: 10.5 mL 16. Volume of water and metal piece 3: 40.6 ml 17. Volume of metal piece 3 by water displacement: 30.ImL (calculate) PART D. Quantitative and Empirical Skills Density - Mass/Volume 18. Densities of metal pieces 1, 2 and 3: .918g/ml 10l1g/mL .997 (calculate for each metal piece) 9 19. Average density...
at 15.0°C 20.0°C, 22.0°C, 25.0°C, Post-Laboratory Questions 1. Write down the values for the density of water at 15.0°C, 20. and 28.0°C. a. Compare the values of the density of water at the above temp temperature affect density? If so, state how. Explain your rease Fat the above temperatures. Does b. Would temperature be a significant source of error for this experiment? Explain your reasoning. 2. In attempting to calculate the density of chloroform, CHCl3, Riley determines the following densities:...
Ana lab a student determines the density of a metal object by
measuring its mass on a balance and its volume by displacement in a
graduated cylinder
In the lab, a student determines the density of a metal object by measuring its mass on a balance and its volume by displacement in a graduated cylinder. The data collected by the student is shown. mass of object: 46.675 g volume of water in cylinder before object submersed: 29.79 mL volume of...
In the lab, a student determines the density of a metal object by measuring its mass on a balance and its volume by displacement in a graduated cylinder. The data collected by the student is shown. mass of object: 42.231 g volume of water in cylinder before object submersed: 28.01 mL volume of water + object in cylinder: 34.39 mL Calculate the density of the object. d = g/mL Based on the recorded volume data, and assuming that the student...
ACTIVITY ACTIVITY 2 A Determining the Densities of Solutions 1. Weigh an empty 50-ml graduated cylinder. Record the mass in Data Table 2. 2. Add 5 mL of water (0% sucrose) to the 50-ml graduated cylinder. Use the pipet to add or remove small quantities of liquid so that the water is exactly at the 5-mL mark. 3. Record the Mass of Solution + Graduated Cylinder in Data Table 2. 4. Add more water until the cylinder contains 10 mL...
4. Suppose that a student performed the experiment and calculations perfectly as directed except that, unknown to the student, the balance was not zeroed but weighed 0.100 g too high throughout the experiment. Would the calculated val- ue for the density of the unknown liquid be correct? That is, would it be equal to, higher than, or lower than the true value. Explain your answer in clear and correct English. 16 LABORATORY EXPERIMENTS IN GENERAL CHEMISTRY ed in question 4...
A student obtained the following data when he performed Part 2
of the experiement. Calculate the volume of dry hydrogen gas at
STP.
volume of gas in inverted graduated cylinder 42.6 ml
barometer reading 749.3 Torr
water temperature 19.6 degrees Celsius
thanks!
Perlment to t of btained the following data when he performed Part 2 of the , suden en e late the volu on Ca en fagulate the volume of dry hydrogen gas at STP. experiment yolume of gas...
5 Calculate the following from the given values (3 points each A and B) A) A solution has a pH- 4.85 measured by using a phi meter (Use a scientific calculator for answering a) a) What is the hydrogen ion concentration in this solution [H'] b) What is the pOH of this solution? b) Is this solution acidic, basic or neutral? (B) A laboratory solution has a concentration of hydrogen ions as H-1.0x 10-10 mol/L a. What is the pH...
DATA SHEET: LAB IV Measurements and Density Determination 14. Volume of metal piece 2 by water displacement: 19.8ml (calculate) 15. Initial volume of water in graduated cylinder: 10.5 mL 16. Volume of water and metal piece 3: 40.6 ml 17. Volume of metal piece 3 by water displacement: 30.ImL (calculate) PART D. Quantitative and Empirical Skills Density - Mass/Volume 18. Densities of metal pieces 1, 2 and 3: .918g/ml 10l1g/mL .997 (calculate for each metal piece) 9 19. Average density...
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