1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
kipiarov [429]
1 year ago
11

a sample of gold required 2.1200j of heat to melt it from room temperature, 22.0 degrees celsius to its melting point, 1064.4 de

grees celsius. How many pounds of gold were in the sample?
Chemistry
1 answer:
ElenaW [278]1 year ago
7 0

Mass of Gold = 267.165 ×  0.01552494829

⇒ 4.1477228099

The amount of heat(q) required to raise m grams of a substance-specific C from T1 to T2 is given by

q=m C (T2-T1) ........1

Given : q= 2.1200 J

the initial temperature of gold, T1 = 22.0Celcius

the final temperature of gold, T2 = 1064.4Celcius

specific heat of gold = 0.131

putting values in eq 1:

⇒ 2.1200 = m × 0.131 × (1064.4-22)

⇒ 2.1200 = m × 0.131 × 1042.4

⇒ 2.1200 / 136.5544

⇒ 0.01552494829

Since 1g= 0.01552494829 Pounds

Mass of Gold = 267.165 ×  0.01552494829

⇒ 4.1477228099

Learn more about temperature here: brainly.com/question/11464844

#SPJ9

You might be interested in
6. Which atomic particle has a positive (+) charge?
m_a_m_a [10]

Answer:

lithum

Explanation:

5 0
3 years ago
Read 2 more answers
oxygen is a common oxidizing agent in nature. what change in the oxidation number of oxygen must occur if it is to be an oxidizi
Minchanka [31]

Answer is: the oxidation number of oxygen must decrease.

Oxidizing agent is element (substance) that gain electrons in chemical reaction.

For example, balanced chemical reaction: C + O₂ → CO₂.

Oxygen change oxidation number from 0 to oxidation number -2 (reduction) and carbon change from 0 to +4 (oxidation)

6 0
3 years ago
Ill make u scream without the e :)<br><br><br><br> get out of my lawn
Vesnalui [34]

Answer:

Yep, this is my new pick up line

Explanation:

5 0
2 years ago
Why would concentrated hydrochloric acid be a poor choice as the acid catalyst for the formation of cyclohexane by dehydration o
babunello [35]

Answer:

Chlorine ion will attack the carbocation and double bond will not be created

Explanation:

The use of concentrated hydrochloric acid wiill be a poor choice as the acid catalyst for the formation of cyclohexane by dehydration of cyclohexanol because of the following reasons:

1) There will be presence of chlorine ions and they will attack the carbocation to form a single bond.

2) The formation of double bond will not occur in the process.

Therefore, it is a poor choice to use concentrated hydrochloric acid as the acid catalyst for the formation of cyclohexane by dehydration of cyclohexanol.

6 0
4 years ago
✓7<br> Is it rational or irrational
Elden [556K]

Answer:

Irrational

Explanation:

:)

5 0
3 years ago
Read 2 more answers
Other questions:
  • How would the following solid substances be classified? The choices are metallic, ionic, or molecular. C6H12O6
    9·1 answer
  • What is the correct name for Na20?
    6·2 answers
  • 20.0m equals how many feet ? Round your answers to the nearest tenth.
    10·1 answer
  • What are the two main types of cells, and how do we classify them?
    8·2 answers
  • A chemical change occurs when a piece of wood?
    10·1 answer
  • Which of the following reactions would result in decreased entropy? (multiple choice)
    10·1 answer
  • A gas contained in a steel tank has a volume of 1.5 L at a temperature of 390 K. What will be the volume when the temperature ch
    14·1 answer
  • How many moles of MgCl2 are there in 342 g of the compound?
    12·2 answers
  • The world's largest importer of fish products is:
    13·1 answer
  • What charges would an atom of Cesium and Radium form based on the octet rule
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!