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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)....
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Need help with these questions?? Please help
Remove the drop suspended from a pipet tip by ... b. The finger used to control the delivery of liquid form a pipet is the ... c What should be done with the last bit of liquid remaining in the pipet after delivery? d. Most pipets are calibrated as TD 20 degree C. Define TD: what is its meaning regarding the volume of liquid a pipet delivers? Experimental Procedure, Part C.1. The density...
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Mass of Magnesium strip Use the length of your magnesium strip and the mass per m provided by your TA to calculate the mass of your magnesium strip. Make sure to convert so that your units match! Mass of magnesium strip Moles of magnesium used Convert the mass of each magnesium strip into moles using the molar mass. Moles of magnesium Moles of hydrogen produced (n) Use the mole ratio from the balanced chemical equation to convert the moles magnesium...
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Date: Trial 1Trial 2 90-9806 A Cylinder,gte-90.980 Mass graduated Mass graduated Cylinder+ Water, g Mass Water,g Mass Metal, g | 0시352101 5.2 Metal Temperature in test tube, °C Initial Water Temperature, C Calorimeter Water Temperature measure water temperature at I minute intervals Reading (1),oC Reading (2), C32.2. Reading (3), oe | 32 .국 | 3 2-6 Reading (4),°C Reading (5),°c | 32-6 | 32.5 | | Reading (6), °C | 32-Z 32,2 Maximum Water Temperature. °C Calculated Specific Heat, J...
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A. Density of water 10.0mL 30.0mL 500ml Mass of empty so ml cylinder 20.7779 20.7779 20.7779 Mass of cylinder + Water 31.314g 50.837g 70.5229 mass of water Density of sample DEM Merck Book Density at B. Accuracy and precision of Volumetric Devices Temperature of water Mass of empty Soml beaker Graduated 1 Pipet (100ml) 1 (10.00-4) 22.5°C | 30.4689 0819 | 40-3849 41. 1979 | 40.3909 h o. 978.140.3929 Mass of beaker + 10 mL of water T al Book...
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Jordan obtains a silver metallic unknown. Jordan measure the
mass of the metal to be 62.307 g. When the metal is placed in a
graduated cylinder that contains 22.3 mL of water, the new volume
is measured to be 29.1 mL.
a) calculate the change in volume of water in the graduated
cylinder.
b) calculate the density of the metal.
c) Jordan's teacher provides a list of possible unknowns.
Determine the identity of the unknown.
METAL DENSITY (g/mL)
lead 11.35...
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15. How many milliliters of glycerine (density =1.26 g/mL) will have a mass of 0.75 lb? a. 175 ml b. 62 mL c. 270 mL d. 400 mL e. none of the above Ne 16. What is the density of a cubic metal if it has a mass of 31.0 g and it measures 2.50 each side? a. 2.55 b. 12.4 c. 5.75 d. 1.98 e. none of the above 17. A metal with a mass of 5.75 g was...
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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...
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I need the density (g/mL) for the water column and the isopropyl
alcohol column. With math shown and included please! The question
requires me to show work. If possible, I would also like the
percent error's (with work shown) of the water and isopropyl
alcohol columns. Thank you!
Part 1: Volume and Density Measurements (Liquid) 1 Gather the graduated cylinder, distilled water, short stem pipet, and isopropyl alcohol. 2 Place the clean, dry, 25 ml graduated cylinder on the tared...
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1.
4. What property of water is responsible for water transport in
plants?
Question 4 options:
a. moderation of temperature
b. insulation
c. its versatility as a solvent
d. cohesion
5.
5. Which of the following explains what is happening when sodium
chloride dissolves in water?
Question 5 options:
a. Covalent bonds are breaking and re-forming.
b. More hydrogen bonds are forming between water molecules.
c. Sodium and chloride atoms are separating from one another
d. Hydration shells are...
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)....
Need help with these questions?? Please help
Remove the drop suspended from a pipet tip by ... b. The finger used to control the delivery of liquid form a pipet is the ... c What should be done with the last bit of liquid remaining in the pipet after delivery? d. Most pipets are calibrated as TD 20 degree C. Define TD: what is its meaning regarding the volume of liquid a pipet delivers? Experimental Procedure, Part C.1. The density...
Mass of Magnesium strip Use the length of your magnesium strip and the mass per m provided by your TA to calculate the mass of your magnesium strip. Make sure to convert so that your units match! Mass of magnesium strip Moles of magnesium used Convert the mass of each magnesium strip into moles using the molar mass. Moles of magnesium Moles of hydrogen produced (n) Use the mole ratio from the balanced chemical equation to convert the moles magnesium...
Date: Trial 1Trial 2 90-9806 A Cylinder,gte-90.980 Mass graduated Mass graduated Cylinder+ Water, g Mass Water,g Mass Metal, g | 0시352101 5.2 Metal Temperature in test tube, °C Initial Water Temperature, C Calorimeter Water Temperature measure water temperature at I minute intervals Reading (1),oC Reading (2), C32.2. Reading (3), oe | 32 .국 | 3 2-6 Reading (4),°C Reading (5),°c | 32-6 | 32.5 | | Reading (6), °C | 32-Z 32,2 Maximum Water Temperature. °C Calculated Specific Heat, J...
A. Density of water 10.0mL 30.0mL 500ml Mass of empty so ml cylinder 20.7779 20.7779 20.7779 Mass of cylinder + Water 31.314g 50.837g 70.5229 mass of water Density of sample DEM Merck Book Density at B. Accuracy and precision of Volumetric Devices Temperature of water Mass of empty Soml beaker Graduated 1 Pipet (100ml) 1 (10.00-4) 22.5°C | 30.4689 0819 | 40-3849 41. 1979 | 40.3909 h o. 978.140.3929 Mass of beaker + 10 mL of water T al Book...
15. How many milliliters of glycerine (density =1.26 g/mL) will have a mass of 0.75 lb? a. 175 ml b. 62 mL c. 270 mL d. 400 mL e. none of the above Ne 16. What is the density of a cubic metal if it has a mass of 31.0 g and it measures 2.50 each side? a. 2.55 b. 12.4 c. 5.75 d. 1.98 e. none of the above 17. A metal with a mass of 5.75 g was...
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...
I need the density (g/mL) for the water column and the isopropyl
alcohol column. With math shown and included please! The question
requires me to show work. If possible, I would also like the
percent error's (with work shown) of the water and isopropyl
alcohol columns. Thank you!
Part 1: Volume and Density Measurements (Liquid) 1 Gather the graduated cylinder, distilled water, short stem pipet, and isopropyl alcohol. 2 Place the clean, dry, 25 ml graduated cylinder on the tared...