A 31.1 g wafer of pure gold, initially at 69.3 °C, is submerged into 64.2 g of water at 27.8 °C, in an insulated container.

Question

Question

A 31.1 g wafer of pure gold, initially at 69.3 °C, is submerged into 64.2 g of water at 27.8 °C, in an insulated container.

A 31.1 g wafer of pure gold, initially at 69.3 °C, is submerged into 64.2 g of water at 27.8 °C, in an insulated container. What the final temperature of both substances at thermal equilibrium?

science chemistry

Add a comment Improve this question Transcribed image text

Answer 1

Answer #1

m(water) = 64.2 g

T(water) = 27.8 oC

C(water) = 4.184 J/goC

m(gold) = 31.1 g

T(gold) = 69.3 oC

C(gold) = 0.129 J/goC

T = to be calculated

Let the final temperature be T oC

use:

heat lost by gold = heat gained by water

m(gold)*C(gold)*(T(gold)-T) = m(water)*C(water)*(T-T(water))

31.1*0.129*(69.3-T) = 64.2*4.184*(T-27.8)

4.0119*(69.3-T) = 268.6128*(T-27.8)

278.0247 - 4.0119*T = 268.6128*T - 7467.4358

T= 28.4107 oC

Answer: 28.4 oC

Add a comment

Answer 2

Similar Homework Help Questions

A 31.6 g wafer of pure gold initially at 69.8 ∘C is submerged into 64.2 g...

A 31.6 g wafer of pure gold initially at 69.8 ∘C is submerged into 64.2 g of water at 27.3 ∘C in an insulated container. What is the final temperature of both substances at thermal equilibrium? Express your answer using three significant figures.
A 31.7 g wafer of pure gold initially at 69.9°C is submerged into 63.0 g of water at 26.9 °C in an insulated container.

A 31.7 g wafer of pure gold initially at 69.9°C is submerged into 63.0 g of water at 26.9 °C in an insulated container. Part A What is the final temperature of both substances at thermal equilibrium?
A 31.6 g wafer of pure gold initially at 69.7 ∘C is submerged into 63.5 g of water at 27.1 ∘C in an insulated container....

A 31.6 g wafer of pure gold initially at 69.7 ∘C is submerged into 63.5 g of water at 27.1 ∘C in an insulated container. What is the final temperature of both substances at thermal equilibrium? Express your answer using three significant figures.

A 31.3 g wafer of pure gold initially at 69.9 ∘C is submerged into 63.6 g...

A 31.3 g wafer of pure gold initially at 69.9 ∘C is submerged into 63.6 g of water at 26.7 ∘C in an insulated container. What is the final temperature of both substances at thermal equilibrium?
we submerge a 32.5 g wafer of pure gold intially at 69.3 degrees C and a...

we submerge a 32.5 g wafer of pure gold intially at 69.3 degrees C and a 27.5 g ingot of pure silver at 72.4 degrees C into 1.00 kg of water at 27.8 degrees C in an insulated container. Determine the final temperature in degrees celcius of all the substances at thermal equilibrium.
A 31.7 g wafer of pure gold initially at 69.9 °C is submerged into 84.0 g...

A 31.7 g wafer of pure gold initially at 69.9 °C is submerged into 84.0 g of water at 27.1 °C in an insulated container. Part A What is the final temperature of both substances at thermal equilibrium? Express your answer using three significant figures. IVO AED ROO? Submit Request Answ

1. A 31.6 g wafer of pure gold initially at 69.4 ∘C is submerged into 63.8...

1. A 31.6 g wafer of pure gold initially at 69.4 ∘C is submerged into 63.8 g of water at 27.7 ∘C in an insulated container. What is the final temperature of both substances at thermal equilibrium? 2.Two substances, A and B, initially at different temperatures, come into contact and reach thermal equilibrium. The mass of substance A is 6.04 gand its initial temperature is 21.0 ∘C . The mass of substance B is 25.5 gand its initial temperature is...
A 2.58 g lead weight, initially at 10.4 ∘C, is submerged in 7.85 g of water...

A 2.58 g lead weight, initially at 10.4 ∘C, is submerged in 7.85 g of water at 52.3 ∘C in an insulated container. e What is the final temperature of both substances at thermal equilibrium?
A silver block, initially at 58.2 ?C, is submerged into 100.0 g of water at 25.0 ?C, in an insulated container. The fin...

A silver block, initially at 58.2 ?C, is submerged into 100.0 g of water at 25.0 ?C, in an insulated container. The final temperature of the mixture upon reaching thermal equilibrium is 27.6 ?C. -What is the mass of the silver block?

A 2.94 g lead weight, initially at 11.1 ∘C, is submerged in 7.72 g of water...

A 2.94 g lead weight, initially at 11.1 ∘C, is submerged in 7.72 g of water at 51.8 ∘C in an insulated container. What is the final temperature of both the weight and the water at thermal equilibrium?

A 31.1 g wafer of pure gold, initially at 69.3 °C, is submerged into 64.2 g of water at 27.8 °C, in an insulated container.

Homework Answers

Add Answer to:
A 31.1 g wafer of pure gold, initially at 69.3 °C, is submerged into 64.2 g of water at 27.8 °C, in an insulated container.

Post as a guest

Earn Coins

A 31.6 g wafer of pure gold initially at 69.8 ∘C is submerged into 64.2 g...

A 31.7 g wafer of pure gold initially at 69.9°C is submerged into 63.0 g of water at 26.9 °C in an insulated container.

A 31.6 g wafer of pure gold initially at 69.7 ∘C is submerged into 63.5 g of water at 27.1 ∘C in an insulated container....

A 31.3 g wafer of pure gold initially at 69.9 ∘C is submerged into 63.6 g...

we submerge a 32.5 g wafer of pure gold intially at 69.3 degrees C and a...

A 31.7 g wafer of pure gold initially at 69.9 °C is submerged into 84.0 g...

1. A 31.6 g wafer of pure gold initially at 69.4 ∘C is submerged into 63.8...

A 2.58 g lead weight, initially at 10.4 ∘C, is submerged in 7.85 g of water...

A silver block, initially at 58.2 ?C, is submerged into 100.0 g of water at 25.0 ?C, in an insulated container. The fin...

A 2.94 g lead weight, initially at 11.1 ∘C, is submerged in 7.72 g of water...

A 31.1 g wafer of pure gold, initially at 69.3 °C, is submerged into 64.2 g of water at 27.8 °C, in an insulated container.

Homework Answers

Add Answer to: A 31.1 g wafer of pure gold, initially at 69.3 °C, is submerged into 64.2 g of water at 27.8 °C, in an insulated container.

Post as a guest

Earn Coins

Add Answer to:
A 31.1 g wafer of pure gold, initially at 69.3 °C, is submerged into 64.2 g of water at 27.8 °C, in an insulated container.