A glass contains 250.0 g of warm water at 78.0°C. A piece of gold at 2.30°C is placed in the water. The final temperature reached by this system is 76.9°C. What was the mass of gold? The specifi c heat of water is 4.184 J/g °C, and that of gold is 0.129 J/g °C. 117 51 g

A glass contains 250.0 g of warm water at 78.0°C. A piece of gold at 2.30°C is placed in the water. The final temperature reached by this system is 76.9°C. What was the mass of gold? The specifi c heat of water is 4.184 J/g °C, and that of gold is 0.129 J/g °C. 117 51 g

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

See similar textbooks

Related questions

Q: In the laboratory a student uses a "coffee cup" calorimeter to determine the specific heat of a…

Q: If 1101 J of heat is available, what is the mass in grams of iron (specific heat = 0.450 J/g•°C)…

A: HEAT ENERGY: When the atoms present in a compound which can be a solid, liquid or a gaseous molecule…

Q: a block of metal weighing 65 grams was heated to 100.0 C. The warm metal was quickly transferred to…

A: Weight of metal block = 65 g Initial temperature of metal = 100 0 C Weight of water = 75 g Initial…

Q: In the laboratory a student finds that it takes 710 Joules to increase the temperature of 10.7 grams…

A: Given :- Mass of water = 10.7 g Initial temperature = 22.0°C Final temperature = 39.2°C Heat…

Q: A chunck of lead at 91.7 degrees celcius was added to 200.0 g of water at 15.5 celcius. the specific…

A: Given:Specific heat of water = 4.18 J/goCspecific heat of lead = 0.129 J/goCInitial Temperature of…

Q: A 205 g sample of gold at some temperature was added to 22.3 g of water. The initial water…

A: Since the temperature of the water is increased, water has received heat and gold has emitted heat.…

Q: The specific heat of a certain type of cooking oil is 1.75 J/(g.°C). How much heat energy is needed…

A: The objective of this question is to calculate the amount of heat energy required to raise the…

Q: 3. We all know that the hood of a car gets extremely hot in the summertime when a bright sun is…

A: Mass of iron (m) = 22.8 × 0.4536 = 10.3421 kg or 10342.1 g Specific heat capacity of iron (s) = 0.45…

Q: What is the specific heat of a piece of metal (in J/g°C) if 55.00 g of the metal releases 272 J of…

A: Q = m . s . (T1 - T2) Where, Q = heat released in J m = Mass of metal in g s = specific heat of…

Q: In the laboratory a student uses a "coffee cup" calorimeter to determine the specific heat of a…

A: The heat is related to mass, temperature change, and specific heat of a substance as: q=mc∆T

Q: A chemist heats the block of copper, then places the metal sample in a cup of oil at 25.00 C instead…

A: Since the final temperature of oil will be same as that of copper block as they reached equilibrium…

Q: A 37.15 gram sample of copper (specific heat, 0.385 J/g•°C) with an initial temperature of 95.8°C is…

A: We know that, according to the law of conservation of heat energy, energy gained or loss by the…

Q: In the laboratory a student uses a "coffee cup" calorimeter to determine the specific heat of a…

A: Mass of chromium, m1 = 18.5 g Mass of water, m2 = 81.3 g Temperature of chromium, T = 98.04 °C…

Q: A 55-gram aluminum spoon (specific heat 0.88 J/g°C) at 54°C is placed in 150 mL of coffee at 105°C…

Q: A chemist heats the block of silver as shown in the interactive, then places the metal sample in a…

A: Since, the mass and temperature of silver after being heated is not given. We can assume a…

Q: Suppose you heat a metal object with a mass of 30.0 g to 95.5 °C and transfer it to a calorimeter…

A: Given information is as follows: The mass of the metal = 30 g The initial temperature of the metal =…

Q: A 15.0 gram lead ball at 25.0°C was heated with 40.5 joules of heat. Given the specific heat of lead…

A: The change in temperature of the lead ball can be calculated by equation (1). where q is the heat…

Q: How many grams of water at 17 °C must be mixed with 180 g (about 6 oz) of coffee at 96 °C so that…

Q: In the laboratory a student finds that it takes 1Joules to increase the temperature of 13.3 grams of…

Q: In the laboratory a student uses a "coffee cup" calorimeter to determine the specific heat of a…

Q: A 46.5-g sample of copper at 99.9 °C is dropped into a beaker containing 149 g of water at 18.3 °C.…

Q: In the lab, a cube of wood has a mass of 35.8 grams and its temperature rises from 20.3oC to 79.5oC…

A: Given: The mass of wood, (m)=35.8 g The initial temperature, (Ti)=20.3oC The finaal temperature,…

Q: gold bar of unknown amount absorbs 1.09 kJ of heat and raises its temperature from 5.3 °C to 72.2…

A: Heat absorbed, q = mCs∆T ∆T = T2 - T1 T1 = Initial temperature T2 = Final temperature m = Mass of…

Q: A 58.28 gram sample of a material with a specific heat of 1.971 J/g•°C is heated from 21.3°C by…

Q: A 15.75-g piece of iron absorbs 1086.75 joules of heat energy, and its temperature changes from 25°C…

Q: A 5.0-g sample of a metal increases in temperature from 20.0C to 22.0C when it absorbs 9.6 J of…

Q: 79.8 grams of a metal that is at temperature 92.39 oC is placed in 186.3 mL of water at 19.79 oC.…

A: Here use thermal equilibrium concept. Here final temperature is 24.68 degree celcius, So metal…

Q: How much heat is required to raise the temperature of a gold earring from 25.0°C to 30.0°C? The…

A: To solve this problem we will use the formula Q = m • C • ∆T Where, Q = heat required m = mass…

Q: A 133.5 g piece of copper (specific heat 0.380 J/g•°C) is heated and then placed into 400.0 g of…

A: According to law of conservation of energy, Heat released by the copper = Heat absorbed by water.

Q: A student measures the following data regarding the heat of fusion of ice: 24.8 g ice at 0.0°C is…

A: Given: Heat capacity of calorimeter = 15.4 J/oC Initial temperature of calorimeter and water = 21.5…

Q: A 46.0-g sample of copper at 99.2 °℃ is dropped into a beaker containing 159 g of water at 18.9 °C.…

Q: A 25.0g piece of aluminum sits in a room and cools. It loses 4300.0 J of heat. If the initial…

Q: 55.0 g sample of nickel (specific heat = 0.433 J/g°C) at 100.0°C is added to 65.0 g of water at…

Q: An unknown substance has a mass of 25.9 g. The temperature of the substance increases from 28.7 °C…

A: Mass of Unknown (m) =25.9 g Change in Temperature (ΔT) = 42.9°C - 28.7°C = 14.2 °C Heat added (q) =…

Q: An unknown hot metal at 122.41°C with a mass of 53.37g was mixed with 28.15g of water at an initial…

A: We have to calculate the specific heat of the unknown metal.

Q: In the laboratory a student uses a "coffee cup" calorimeter to determine the specific heat of a…

A: When titanium metal at high temperature is dropped in water at lower temperature, titanium will lose…

Question

A glass contains 250.0 g of warm water at 78.0°C. A piece of gold at 2.30°C is placed in the water. The fi nal temperature reached by this
system is 76.9°C. What was the mass of gold? The specifi c heat of water is 4.184 J/g °C, and that of gold is 0.129 J/g °C.
O 117.54 g
O 115.55 g
119.56 g
123.89 g

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.

Similar questions

An unknown substance has a mass of 22.5 g. The temperature of the substance increases from 27.9 °C to 45.1 °C when 90.9 J of heat is added to the substance. The table lists the specific heats of select substances. Substance lead silver copper iron aluminum water G B Specific heat [J/(g- °C)] 0.128 0.235 0.385 0.449 0.903 4.184 H MacBook Air N 1 What is the most likely identity of the unknown substance? O aluminum silver D iron water O lead O copper O 2.30 P
A sample of water (84 grams) had a temperature change of 6.0 ℃. What was the heat change of this sample? (q = m c ΔT, c = 4.18 J/ g ℃)
105 mL of H2 O is initially at room temperature (22.0° C). A chilled steel rod at 2.0° C is placed in the water. If the final temperature of the system is 21.3 °C, what is the mass of the steel bar? Specific heat of water = 4.18 J/g.°C Specific heat of steel = 0.452 J/g.°C
An unknown hot metal at 107.03°C with a mass of 48.67g was mixed with 37.99g of water at an initial temperature of 13.65°C. A final temperature (for both water and metal) of 26.53°C was reached. In units of J/(g°C), what is the specific heat of the unknown metal?
If 501 J of heat is available, what is the mass in grams of iron (specific heat = 0.450 J/g °C) that can be heated from 22.5 °C to 120.0 °C?
A beaker contained 67.27 g of water at 19.84°C. A 89.96-g sample of metal at 67.86°C was placed in it, giving a final temperature of 37.52°C for the system. Calculate the specific heat of the metal. Specific heat is 4.184 J/g/°C for H2O. Round your answer to 2 decimal places.
A piece of metal weighing 146.7 g was heated from 32.0 °C to 56.2 °C. If the amount of heat needed was 1363.3 J, calculate the specific heat of the metal. What is the identity of the metal? 20 Specific Heats of Selected Metals Smetal, J/g-°C Metal 0.901 Smetal, J/g-°C 0.449 Metal Al Fe Cu 0.384 Ni 0.444 Si 0.711 Sn 0.226 Zn 0.389 Mn 1.02
Aluminum and iron samples, each weighing 2 kg, absorb 11.5 kJ of heat. Which material would have the greatest change in temperature? Considering that aluminum has a specific heat capacity of 0.89 J/g K) and iron has 0.45 J/g K.
A 5.0 g sample of water starting at 59.4°C loses 439 J of energy in the form of heat. What is the final temperature of the water after this heat loss? The specific heat for water is 4.18 J/(g.°C). Temperature = °C
A 146.3g piece of iron (specific heat = 0.449 J/g°C) is heated with a flame and dropped into a coffe cup calorimeter containing 450.0 g of water. the water (specific heat = 4.18 J/g°C) in the calorimeter increases from 20.3°C to 32.0°C. what was the initial temperature of iron?
The temperature of the cooling water as it leaves the hot engine of an automobile is 240 °F. After it passes through the radiator it has a temperature of 175 °F. Calculate the amount of heat transferred from the engine to the surroundings by 10 grams of water with a specific heat of 4.184 J/g °C.
A chemist heats the block of copper as shown in the interactive, then places the metal sample in a cup of oil at 25.00 °C instead of a cup of water. The temperature of the oil increases to 26.31 °C. Calculate the mass of oil in the cup. The specific heat of copper is 0.387 J/g °C and the specific heat of oil is 1.74 J/g. °C. moil = y TOOLS