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general chemistry I lab manual
c) A metal sample has a mass of 7.56 g. The...
i) Asmall crystal has a mass of 7.03 mg The dimensions of the crystal are 3.80...
i) Asmall crystal has a mass of 7.03 mg The dimensions of the crystal are 3.80 mm x 2.95 mm x 1.70 mm. What is the density of the solid in g/cm"? LAB VII. PRACTICE PROBLEMS NAME: SECTION: PART B. CHAPTER 2 PROBLEMS 1) Isotopes a) Fill in the blanks to complete the table. Symbol Z A N of protons (p) N° of electrons (c) Nº neutrons (n) 10 AG 15 b) Copper has two naturally occurring isotopes: 69.17% of...
Chemistry problem: Suppose you have an unknown metal cylinder that has length: 52.4 mm, and diameter:...
Chemistry problem: Suppose you have an unknown metal cylinder that has length: 52.4 mm, and diameter: 10.4 mm measured by a caliper. And, the mass of the unknown metal cylinder is 39.8380 g. Then suppose it was placed into a 25 mL graduated cylinder filled with 10mL of water where the solid cylinder is completely submerged in the water and the new water level should be < 25mL. What could approximately or possibly be the final volume of water after...
A student measured a mass of a metal bar as 57.21 g. The student filled a...
A student measured a mass of a metal bar as 57.21 g. The student filled a graduated cylinder with water and determined the volume of water to be 48.60 ml Then the student placed the metal bar into the graduated cylinder and determined the new volume to be 53.70 mL Calculate the density of the metal and identify its name from the choices that appear in Table 1.2. A chemist has a 9.50 ml, sample of rubbing alcohol (isopropyl alcohol)....
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...
General Chemistry I Southern California University of Health Sciences Perform the following conversions. Make sure your...
General Chemistry I Southern California University of Health Sciences Perform the following conversions. Make sure your answer has the correct number of significant digits. 6. a) 5.00 mm to cm 66.3 m2 to mL b) c) 71.63 g/cm' to mg/dm General Chemistry I Southern California University of Health Sciences Liguid Unknown Results Unknown #: Trial 1: Density Mass Trial 2: Density Mass Trial 3: Density Mass Average density of liquid unknown Questions 1. If, unknown to you, your pipette was...
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...
Chemistry I Laboratory Manual, 2019 Revision Questions: 1) What mass of KHP would you need in...
Chemistry I Laboratory Manual, 2019 Revision Questions: 1) What mass of KHP would you need in order to use titrate it? would you need in order to use 35.00 mL of 0.500 M NaOH to 2) A student weighs out 1.051 g of impure KHP, dissolves the sample in deionized water and titrates it with 0.1101 M NaOH solution. If the titration requires 26.10 mL of the NaOH solution, and none of the impurities react with NaOH, what is the...
What is molar mass of KHP Chemistry I Laboratory Manual, 2017 Revision Acid/Base Titrations Pre-Lab Date:...
What is molar mass of KHP
Chemistry I Laboratory Manual, 2017 Revision Acid/Base Titrations Pre-Lab Date: Name 1 ) What is the molar mass of KHP? 2) If a student weighs out 0.500 g of KHP and titrates it with sodium hydroxide solution, what is the molarity of the sodium hydroxide solution if it takes 31.21 ml. of it to titrate the KHP 3) It takes 26.61 mL of 0.228 M sodium hydroxide solution to titrate 10.00 mL of sulfuric...
105 Chemistry I Laboratory Manual, 2017 Revision Questions: 1) What mass of KHP would you need in order to use 3...
105 Chemistry I Laboratory Manual, 2017 Revision Questions: 1) What mass of KHP would you need in order to use 35.00 mL of 0.400 M NaOH to titrate it? 2) A student weighs out 1,000 g of impure KHP, dissolves the sample in deionized water and titrates it with 0.1101 M NaOH solution. If the titration requires 22.10 mL of the NaOH solution, and none of the impurities react with NaOH, what is the percent KHP in the sample?
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: 44.701 g volume of water in cylinder before object submersed: 29.47 ml volume of water + object in cylinder: 35.33 mL Calculate the density of the object. d= g/mL Based on the recorded volume data, and assuming that the student used...
i) Asmall crystal has a mass of 7.03 mg The dimensions of the crystal are 3.80 mm x 2.95 mm x 1.70 mm. What is the density of the solid in g/cm"? LAB VII. PRACTICE PROBLEMS NAME: SECTION: PART B. CHAPTER 2 PROBLEMS 1) Isotopes a) Fill in the blanks to complete the table. Symbol Z A N of protons (p) N° of electrons (c) Nº neutrons (n) 10 AG 15 b) Copper has two naturally occurring isotopes: 69.17% of...
A student measured a mass of a metal bar as 57.21 g. The student filled a graduated cylinder with water and determined the volume of water to be 48.60 ml Then the student placed the metal bar into the graduated cylinder and determined the new volume to be 53.70 mL Calculate the density of the metal and identify its name from the choices that appear in Table 1.2. A chemist has a 9.50 ml, sample of rubbing alcohol (isopropyl alcohol)....
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...
General Chemistry I Southern California University of Health Sciences Perform the following conversions. Make sure your answer has the correct number of significant digits. 6. a) 5.00 mm to cm 66.3 m2 to mL b) c) 71.63 g/cm' to mg/dm General Chemistry I Southern California University of Health Sciences Liguid Unknown Results Unknown #: Trial 1: Density Mass Trial 2: Density Mass Trial 3: Density Mass Average density of liquid unknown Questions 1. If, unknown to you, your pipette was...
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...
Chemistry I Laboratory Manual, 2019 Revision Questions: 1) What mass of KHP would you need in order to use titrate it? would you need in order to use 35.00 mL of 0.500 M NaOH to 2) A student weighs out 1.051 g of impure KHP, dissolves the sample in deionized water and titrates it with 0.1101 M NaOH solution. If the titration requires 26.10 mL of the NaOH solution, and none of the impurities react with NaOH, what is the...
What is molar mass of KHP
Chemistry I Laboratory Manual, 2017 Revision Acid/Base Titrations Pre-Lab Date: Name 1 ) What is the molar mass of KHP? 2) If a student weighs out 0.500 g of KHP and titrates it with sodium hydroxide solution, what is the molarity of the sodium hydroxide solution if it takes 31.21 ml. of it to titrate the KHP 3) It takes 26.61 mL of 0.228 M sodium hydroxide solution to titrate 10.00 mL of sulfuric...
105 Chemistry I Laboratory Manual, 2017 Revision Questions: 1) What mass of KHP would you need in order to use 35.00 mL of 0.400 M NaOH to titrate it? 2) A student weighs out 1,000 g of impure KHP, dissolves the sample in deionized water and titrates it with 0.1101 M NaOH solution. If the titration requires 22.10 mL of the NaOH solution, and none of the impurities react with NaOH, what is the percent KHP in the sample?
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: 44.701 g volume of water in cylinder before object submersed: 29.47 ml volume of water + object in cylinder: 35.33 mL Calculate the density of the object. d= g/mL Based on the recorded volume data, and assuming that the student used...
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