Homework Answers
Answer
By using the equation Q= m*c*deltaT
m= mass of metal=253.5 g ; q= heat = 26347 J; c= specific heat of metal
delta T= temperature change= 146.5-31.4=115.1 degree C
using in the equation and solving for c
26347=253.5*c*115.1
c=26347/(253.5*115.1)= 0.903 J/gC metal is aluminum
Add Answer to:
Identify an unknown metal by determining its specific heat capacity (Csp). It takes 26,347 J of...
The table lists the specific heat capacities of select substances. Substance Specific heat capacity (J/g °C)...
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 13.3 g. The temperature of the substance increases by 16.7 °C when 52.2 J of heat is added to the substance. What is the most likely identity of the substance? O lead O aluminum iron O copper water O silver
Question 4 of 8 > Substance lead Specific heat capacity (J/g °C) 0.128 0.235 0.385 silver...
Question 4 of 8 > Substance lead Specific heat capacity (J/g °C) 0.128 0.235 0.385 silver copper iron 0.449 aluminum 0.903 4.184 water An unknown substance has a mass of 18.9 g. The temperature of the substance increases by 18.3 °C when 81.3 J of heat is added to the substance. What is the most likely identity of the substance? O aluminum silver O water O copper
Part A To determine whether a shiny gold-colored rock is actually gold, a chemistry student decides...
Part A To determine whether a shiny gold-colored rock is actually gold, a chemistry student decides to measure its heat capacity. She first weighs the rock and finds it has a mass of 4.9 g. She then finds that upon absorption of 54.6 J of heat, the temperature of the rock rises from 25 °C to 58 C. Find the specific heat capacity of the substance composing the rock. Express the specific heat in joules per gram-Celsius to two significant...
29) Which of the following (with specific heat capacity provided) would show the smallest temperature change...
29) Which of the following (with specific heat capacity provided) would show the smallest temperature change upon gaining 200.0 J of heat? A) 50.0 g Fe, CFe= 0.449 Jg'C B) 50.0 g water, Cwater 4.18|123 J/g°C C) 25.0 g Pb, CPb= 0.128 J/g'C D) 250 g Ag, CAg- 0.235 J/g C E) 25.0 g granite, Cgranite 0.79 J/g°C
Specific heat J/(g·℃) The temperature of a sample of copper increased by 24.0
Specific heat J/(g·℃) The temperature of a sample of copper increased by 24.0 °C Substance when 255 J of heat was applied. SubstanceSpecific heat J/(g·℃)lead0.128silver0.235copper0.385iron0.449aluminum0.903What is the mass of the sample? m = _______ g
Given the table of specific heat values below, what is the identity of a 26.2 g...
Given the table of specific heat values below, what is the identity of a 26.2 g metal sample that increases by 8.5°C when 100.0 J of energy is absorbed? Element Specific Heat Au 0.128 Ag 0.235 Cu 0.385 Fe ΑΙ 0.903 O Fe Ο ΑΝ 0.449 O AU O AB None of these
The temperature of a sample of iron increased by 24.3 °C when 269 J of heat...
The temperature of a sample of iron increased by 24.3 °C when 269 J of heat was applied. What is the mass of the sample? Substance Specific heat J/(g · °C) lead 0.128 silver 0.235 copper 0.385 iron 0.449 aluminum 0.903
The temperature of a sample of silver increased by 22.5 °C when 263 J of heat...
The temperature of a sample of silver increased by 22.5 °C when 263 J of heat was applied. What is the mass of the sample? Substance lead silver copper iron aluminum Specific heat J/g °C) 0.128 0.235 0.385 0.449 0.903 m 8
L) Hone of the above 13) Consider the following specific heats of metals. 13) Metal Aluminum...
L) Hone of the above 13) Consider the following specific heats of metals. 13) Metal Aluminum Copper Gold Iron Silver Specific Heat I/g.°C) 0.903 0.385 0.128 0.449 0.235 If the same amount of heat is added to 50.0 g samples of each of the metals, which are all at the same temperature, which metal will reach the highest temperature? A) iron B) copper C) gold D) silver E) aluminum 14) In calculating the relationship between the amount of heat added...
Specific Heat Capacity A 21.5-g sample of an unknown metal is heated to 94.0°C and is...
Specific Heat Capacity A 21.5-g sample of an unknown metal is heated to 94.0°C and is placed in a insulated container containing 128 g of water at a temperature of 21.4°C. After the metal cools, the final temperature of the metal and water is 25.0°C. Calculate the specific heat capacity of the metal, assuming that no heat escapes to the surroundings. Heat loss=Heat gained. Specific Heat Capacity of water is 4.18 J/g/K in this temperature range. Submit Answer Incompatible units....
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 13.3 g. The temperature of the substance increases by 16.7 °C when 52.2 J of heat is added to the substance. What is the most likely identity of the substance? O lead O aluminum iron O copper water O silver
Question 4 of 8 > Substance lead Specific heat capacity (J/g °C) 0.128 0.235 0.385 silver copper iron 0.449 aluminum 0.903 4.184 water An unknown substance has a mass of 18.9 g. The temperature of the substance increases by 18.3 °C when 81.3 J of heat is added to the substance. What is the most likely identity of the substance? O aluminum silver O water O copper
Part A To determine whether a shiny gold-colored rock is actually gold, a chemistry student decides to measure its heat capacity. She first weighs the rock and finds it has a mass of 4.9 g. She then finds that upon absorption of 54.6 J of heat, the temperature of the rock rises from 25 °C to 58 C. Find the specific heat capacity of the substance composing the rock. Express the specific heat in joules per gram-Celsius to two significant...
29) Which of the following (with specific heat capacity provided) would show the smallest temperature change upon gaining 200.0 J of heat? A) 50.0 g Fe, CFe= 0.449 Jg'C B) 50.0 g water, Cwater 4.18|123 J/g°C C) 25.0 g Pb, CPb= 0.128 J/g'C D) 250 g Ag, CAg- 0.235 J/g C E) 25.0 g granite, Cgranite 0.79 J/g°C
Given the table of specific heat values below, what is the identity of a 26.2 g metal sample that increases by 8.5°C when 100.0 J of energy is absorbed? Element Specific Heat Au 0.128 Ag 0.235 Cu 0.385 Fe ΑΙ 0.903 O Fe Ο ΑΝ 0.449 O AU O AB None of these
The temperature of a sample of silver increased by 22.5 °C when 263 J of heat was applied. What is the mass of the sample? Substance lead silver copper iron aluminum Specific heat J/g °C) 0.128 0.235 0.385 0.449 0.903 m 8
L) Hone of the above 13) Consider the following specific heats of metals. 13) Metal Aluminum Copper Gold Iron Silver Specific Heat I/g.°C) 0.903 0.385 0.128 0.449 0.235 If the same amount of heat is added to 50.0 g samples of each of the metals, which are all at the same temperature, which metal will reach the highest temperature? A) iron B) copper C) gold D) silver E) aluminum 14) In calculating the relationship between the amount of heat added...
Specific Heat Capacity A 21.5-g sample of an unknown metal is heated to 94.0°C and is placed in a insulated container containing 128 g of water at a temperature of 21.4°C. After the metal cools, the final temperature of the metal and water is 25.0°C. Calculate the specific heat capacity of the metal, assuming that no heat escapes to the surroundings. Heat loss=Heat gained. Specific Heat Capacity of water is 4.18 J/g/K in this temperature range. Submit Answer Incompatible units....
Most questions answered within 3 hours.
-
A fair 9-sided die is tossed. Find P(4
or at least 5). That is, find the...
asked 4 minutes ago -
Part of an ANOVA table is shown below.
Source of
Variation
Sum of
Squares
Degrees
of...
asked 15 minutes ago -
The activation energy for the decomposition of N2O4 is 57.2.
kJ/mol. If the rate constant for...
asked 26 minutes ago -
The structure and function of a neuron
Ion channels, ion flow, and membrane potential changes...
asked 25 minutes ago -
Calculate the pH of a 0.982 M solution of hydrogen sulfide (H2S)
Where: H2S (aq) ->...
asked 24 minutes ago -
The table shows population statistics for the ages of Best Actor
and Best Supporting Actor winners...
asked 28 minutes ago -
In the following table the activities with their precedence
sequence and expected time (days) are listed...
asked 40 minutes ago -
Suppose the local market for legal services has an upward
sloping supply curve, PL = 150...
asked 46 minutes ago -
1.) Sodium oxalate, Na2C2O4, in solution is oxidized to CO2(g)
by MnO−4 which is reduced to...
asked 48 minutes ago -
PLeases give your response to the following statements below!
1& 2 seperately
1. Bullying is a...
asked 47 minutes ago -
I need help convincing my wife that it is within reason I should
expect to spend...
asked 1 hour ago -
You need to make 100 ml of 2% glucose. To do this, you should
use 4...
asked 1 hour ago