Homework Answers
VOLUME 22.2-20.0=2.9mL
density=30.2/209=10.5g/mL
unknow metal is silver
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3. A student was given an unknown metal. The student determined that the mass of the...
Jordan obtains a silver metallic unknown. Jordan measure the mass of the metal to be 62.307...
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...
A student is determining the density of an unknown metal with a mass of 56.5 g....
A student is determining the density of an unknown metal with a mass of 56.5 g. The student partially fills a graduated cylinder with water and measures the volume of the water by itself as 54.8 mL. The student then adds the metal to the water and measures the new volume as 87.3 mL. What is the density, in g/mL, of the metal?
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)....
An irregular lump of an unknown metal has a measured density of 4.51 g/mL. The metal...
An irregular lump of an unknown metal has a measured density of 4.51 g/mL. The metal is heated to a temperature of 171 °C and placed in a graduated cylinder filled with 25.0 mL of water at 25.0 °C. After the system has reached thermal equilibrium, the volume in the cylinder is read at 30.2 mL, and the temperature is recorded as 47.7 °C. What is the specific heat of the unknown metal sample? Assume no heat is lost to...
An irregular lump of an unknown metal has a measured density of 3.84 g/mL. The metal...
An irregular lump of an unknown metal has a measured density of 3.84 g/mL. The metal is heated to a temperature of 161 °C and placed in a graduated cylinder filled with 25.0 mL of water at 25.0 °C. After the system has reached thermal equilibrium, the volume in the cylinder is read at 33.7 mL, and the temperature is recorded as 37.4 °C. What is the specific heat of the unknown metal sample? Assume no heat is lost to...
A 25.5 g sample of a metal was placed into water in a graduated cylinder. The...
A 25.5 g sample of a metal was placed into water in a graduated cylinder. The metal sank to the bottom, and the water level rose from 15.7 mL to 25.3 mL. What is the identity of the metal? Group of answer choices a. Silver (density = 10.49 g/cm3) b. Aluminum (density = 2.64 g/cm3) c. Lead (density = 11.34 g/cm3) d. Tin (density = 7.31 g/cm3)
The density experiment involves taking average mass and displaced volume measurements for multiple samples of metal....
The density experiment involves taking average mass and displaced volume measurements for multiple samples of metal. A student ascertained that the identity of their unknown metal was zinc (d 7.14 g/mL). However, upon consulting their teaching assistant, they learned that the true identity of the metal was copper (d = 8.96 g/mL). What error could the student have made when performing the experiment that would have led to the student's original conclusion? 7.
An irregular lump of an unknown metal has a measured density of 5.33 g/mL. The metal...
An irregular lump of an unknown metal has a measured density of 5.33 g/mL. The metal is heated to a temperature of 157 °C and placed in a graduated cylinder filled with 25.0 mL of water at 25.0°C. After the system has reached thermal equilibrium, the volume in the cylinder is read at 33.7 mL, and the temperature is recorded as 37.8 °C. What is the specific heat of the unknown metal sample? Assume no heat is lost to the...
An irregular lump of an unknown metal has a measured density of 5.92 g/mL. The metal...
An irregular lump of an unknown metal has a measured density of 5.92 g/mL. The metal is heated to a temperature of 191 °C and placed in a graduated cylinder filled with 25.0 mL of water at 25.0 °C. After the system has reached thermal equilibrium, the volume in the cylinder is read at 34.3 mL, and the temperature is recorded as 40.8 °C. What is the specific heat of the unknown metal sample? Assume no heat is lost to...
An irregular lump of an unknown metal has a measured density of 3.05 g/mL. The metal...
An irregular lump of an unknown metal has a measured density of 3.05 g/mL. The metal is heated to a temperature of 175 °C and placed in a graduated cylinder filled with 25.0 mL of water at 25.0 °C. After the system has reached thermal equilibrium, the volume in the cylinder is read at 31.4 mL, and the temperature is recorded as 43.8 °C. What is the specific heat of the unknown metal sample? Assume no heat is lost to...
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)....
The density experiment involves taking average mass and displaced volume measurements for multiple samples of metal. A student ascertained that the identity of their unknown metal was zinc (d 7.14 g/mL). However, upon consulting their teaching assistant, they learned that the true identity of the metal was copper (d = 8.96 g/mL). What error could the student have made when performing the experiment that would have led to the student's original conclusion? 7.
An irregular lump of an unknown metal has a measured density of 5.33 g/mL. The metal is heated to a temperature of 157 °C and placed in a graduated cylinder filled with 25.0 mL of water at 25.0°C. After the system has reached thermal equilibrium, the volume in the cylinder is read at 33.7 mL, and the temperature is recorded as 37.8 °C. What is the specific heat of the unknown metal sample? Assume no heat is lost to the...
An irregular lump of an unknown metal has a measured density of 5.92 g/mL. The metal is heated to a temperature of 191 °C and placed in a graduated cylinder filled with 25.0 mL of water at 25.0 °C. After the system has reached thermal equilibrium, the volume in the cylinder is read at 34.3 mL, and the temperature is recorded as 40.8 °C. What is the specific heat of the unknown metal sample? Assume no heat is lost to...
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