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
Travka [436]
3 years ago
13

The density of gold is 19.3 g/cm3. What is the volume of a 13 g gold nugget?

Chemistry
1 answer:
Bezzdna [24]3 years ago
8 0
Density = mass / volume
19.3 = 13 / m
m = 13 / 19.3
m = 0.67g

You might be interested in
What is the use of the crystallisation process?
ioda
  •  to obtain pure salt from seawater. 
  • in order to obtain pure crystals of a substance from an impure mixture. 
  • obtain pure alum crystals from an impure alum.

5 0
2 years ago
Read 2 more answers
A goldsmith melts 12.4 grams of gold to make a ring. The temperature of the gold rises from 26°C to 1064°C, and then the gold me
DiKsa [7]

Problem One

You will use both m * c * deltaT and H = m * heat of fusion.

Givens

m = 12.4 grams

c = 0.1291

t1 = 26oC

t2 = 1204

heat of fusion (H_f) = 63.5 J/grams.

Equation

H = m * c * deltaT + m * H_f

Solution

H = 12.4 * 0.1291 * (1063 - 26) + 12.4 * 63.5

H = 1660.1 + 787.4

H = 2447.5 or 2447.47 is the exact answer. I have to leave the rounding to you. I have no idea where to round it although I suspect 2450 would be right for 3 sig digs.

Problem Two

Formula and Givens

t1 = 14.5

t2 = 50.0

E = 5680

c = 4.186

m = ??

E = m c * deltaT

Solution

5680 = m * 4.186 * (50 - 14.5)

5680 = m * 4.186 * (35.5)

5680 = m * 148.603 * m

m = 5680 / 148.603

m = 38.22 grams That isn't very much. Be very sure you are working in joules. You'd leave that many grams in the kettle after drying it thoroughly.

m = 38.2 to 3 sig digs.

8 0
3 years ago
Read 2 more answers
Explain the differences between bronze and brass, and steel and cast iron. Which is best used for cooking wares?
Dennis_Churaev [7]

Answer:

Steel and cast iron

Explanation:

They are all metal but assuming that you are finding the best material for your pan i suggest going for steel or cast iron

8 0
2 years ago
Methyl phenolphthalein and litmus
Butoxors [25]

Answer:

Both are the indicators which helps to identity the acid and base

4 0
3 years ago
Read 2 more answers
Help help help plsss
Olin [163]

Answer:

4.58×10^3

3.72×10^7

Explanation:

3.8×10^2 =380

+ 4.2×10^3=4200

= 4580 = 4.58×10^3

8 0
2 years ago
Other questions:
  • Formula for Sodium Hydrogen Carbonate NaHCO3? or Na2HCO3?
    10·1 answer
  • On a container of chicken broth you notice the instructions to ""shake well before serving."" Which of the following best descri
    12·1 answer
  • What volume of 1.10 M SrCl2 is needed to prepare 525 mL of 5.00 mM SrCl2?
    8·1 answer
  • Which has a triangular fiber? <br> Wool <br> Silk <br> Cotton <br> Nylon
    12·1 answer
  • * I’ll give you BRAINLIST * ( have to get it right ) Joshua has learned that the human body is made up of many body systems that
    9·1 answer
  • The balloon Spirit of Freedom, flown around the world by American Steve Fossett in 2002, contained 550,000 cubic feet of helium.
    15·1 answer
  • The diagram shows an animal cell.
    11·2 answers
  • What is a valence electron ?
    8·2 answers
  • When a predator population increases what happens to the prey population? Increase Decrease Dies Stays the same
    9·1 answer
  • HELPPPPPP 30 POINTS Scientists are currently debating if a new epoch based on modern human activity should be added to the geolo
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!