A hot sample of unknown material is placed into a calorimeter containing 42.1 g of water at 22.0 °C. The final temperature of the water is 62.7 °C. The specific heat capacity of water is 4.184 J/g °C. What is the heat change for the water? Enter either a+ or - sign AND the magnitude. q,H,O (J) Enter

A hot sample of unknown material is placed into a calorimeter containing 42.1 g of water at 22.0 °C. The final temperature of the water is 62.7 °C. The specific heat capacity of water is 4.184 J/g °C. What is the heat change for the water? Enter either a+ or - sign AND the magnitude. q,H,O (J) Enter

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

Similar questions

1
Il Metro by T-Mobile 1:06 AM n 24% Question 15 of 35 Submit Specific Heat Capacity J/(g•°C) Metal Aluminum 0.90 Сopper 0.38 Iron 0.45 Magnesium 1.00 Silver 0.23 Tin 0.32 Titanium 0.52 A) Fe B) Sn C) Ag D) Cu Tap here or pull up for additional resources
A calorimeter contained 79.0 g of water at 15.91°C. A 105-g sample of iron at 65.26°C was placed in it, giving a final temperature of 18.88°C for the system. Calculate the heat capacity of the calorimeter. Specific heats are 4.184 J/g-°C for H2O and 0.444 J/g-°C for Fe. Heat capacity of the calorimeter =| J/°C
NW113AACE04-21 3. a hunk of metal-like substance was found in an archeological site. In an attempt to identify it, the metal was heated and placed in a calorimeter containing water and determined the specific heat of the metal. If the specific heat of the metal is 0.448 J/g °C, what is the approximate molar mass (atomic mass) and likely identity of the metal? (Hint: compare the molar mass (atomic mass) of metal that of metals in periodic table)
When 1.836 grams of sucrose (Molar mass 342.3 g/mol) is burned in a bomb calorimeter, the temperature of the calorimeter increases from 22.41°C to 26.63°C. If the heat capacity of the calorimeter is 4.900 kJ/°C, what is the heat of combustion of sucrose?
The table lists the specific heat capacities of select substances. Substance Specific heat capacity (J/g °C) lead 0.128 silver 0.235 copper 0.385 iron 0.449 aluminum 0.903 water 4.184 An unknown substance has a mass of 19.5 g.19.5 g. The temperature of the substance increases by 16.1 ∘C16.1⁢ ∘C when 73.8 J73.8 J of heat is added to the substance. What is the most likely identity of the substance?
A calorimeter contained 67.0 g of water at 15.93°C. A 110.-g sample of iron at 66.42°C was placed in it, giving a final temperature of 19.42°C for the system. Calculate the heat capacity of the calorimeter. Specific heats are 4.184 J/g-°C for H2O and 0.444 J/g-°C for Fe. Heat capacity of the calorimeter =
The table lists the specific heat capacities of select substances. Substance Specific heat capacity (J/g °C) lead 0.128 silver 0.235 copper 0.385 iron 0.449 aluminum 0.903 water 4.184 An unknown substance has a mass of 14.5 g.14.5 g. The temperature of the substance increases by 15.3 ∘C15.3 ∘C when 85.4 J85.4 J of heat is added to the substance.
11 /can you help me solve this
An 80.0 g sample of metal, initially at 96.0 °C, is placed into 150.0 g of water initially at 26.0 °C in a calorimeter. The final temperature of the water is 28.1 °C. What is the identity of the metal? (The specific heat of water is 4.18 J/g °C.) Metal Aluminum Copper Iron Magnesium Silver Tin Titanium Specific Heat Capacity J/(g•°C) 0.90 0.38 0.45 1.00 0.23 0.32 0.52 A) Fe B) Sn C) Ag D) Cu
A 5.00 g sample of an unknown substance was heated from 25.2 °C to 55.1 °C, requiring 133 J to do so. Calculate the specific heat of the substance and using the table below, identify the substance. Substance Specific Heat Capacity (J/g °C) H2O (l) 4.18 H2O (s) 2.03 Al (s) 0.89 Fe (s) 0.45 Hg (l) 0.14 C (s) 0.71
A 151.6-g sample of a metal at 74.7°C is added to 151.6 g at 15.9°C. The temperature of the water rises to 18.2°C. Calculate the specific heat capacity of the metal, assuming that all the heat lost by the metal is gained by the water. The specific heat capacity of water is 4.18 J/°C ⋅ g. Specific heat capacity = ________J/°C ⋅ g