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
Mazyrski [523]
2 years ago
12

How many atoms of gold (Au,196.97 g/mol) are in a gold nugget with a mass of 4.259?

Chemistry
1 answer:
AveGali [126]2 years ago
5 0

Mass of gold nugget = 4.259 g

Calculating the moles of gold from mass and molar mass:

4.259 g Au * \frac{1 mol Au}{196.97 g Au} = 0.0216 mol Au

Calculating the atoms of Au:

0.0216 mol Au * \frac{6.022 * 10^{23} atoms Au}{1 mol Au} = 1.3*10^{22} atoms Au

Therefore, 1.3 * 10^{22} atoms Au are present in a gold nugget with a mass of 4.259 g.

You might be interested in
Which of the following is always involved in a scientific inquiry?​
Oxana [17]

Answer:

I think the answer is coming up with questions based on observations and reasoning

8 0
2 years ago
Which laws can be combined to form the ideal gas law?
slava [35]

Option 3- Avogadro's, Charles's and Boyle's


6 0
3 years ago
. a large piece of jewelry has a mass of 132.6 g. a graduated cylinder initially contains 48.6 ml water. when the jewelry is sub
elena-s [515]

The large piece of jewelry  that has a mass of 132.6 g and when is submerged in a graduated cylinder that initially contains 48.6 ml water and the volume increases to 61.2 ml once the piece of jewelry is submerged, has a density of: 10.523 g/ml

To solve this problem the formulas and the procedures that we have to use  are:

  • v = v(f)-v(i)
  • d = m/v

Where:

  • d= density
  • m= mass
  • v= volume
  • v(f) = final volume
  • v(i) = initial volume

Information about the problem:

  • m = 132.6 g
  • v(i) = 48.6 ml
  • v(f) = 61.2 ml
  • v = ?
  • d =?

Applying the volume formula we get:

v = v(f)-v(i)

v = 61.2 ml - 48.6 ml

v = 12.6 ml

Applying the density  formula we get:

d = m/v

d = 132.6 g/12.6 ml

d = 10.523 g/ml

<h3>What is density?</h3>

It is a physical quantity that expresses the ratio of the body mass to the volume it occupies.

Learn more about density in: brainly.com/question/1354972

#SPJ4

3 0
1 year ago
IF CORRECT YOU WILL GET BRAINLIEST
Scorpion4ik [409]

Answer:

C 5 mol A; 6 mol B

Explanation:

eto po answer ko sana makatulong

3 0
2 years ago
Read 2 more answers
Alka-Seltzer is a solid mixture of two substances, sodium bicarbonate (NaHCO3) and citric acid (H3C6H5O7). The substances react
laiz [17]

1) List the reactants: sodium bicarbonate (NaHCO₃) and citric acid (H₃C₆H₅O₇).

Reactants undergo change during a chemical reaction.

2) List the products: water (H₂O), carbon dioxide (CO₂) and sodium citrate (Na₃C₆H₅O₇).

Products are the substances formed from chemical reactions.

3) The balanced chemical equation:

3NaHCO₃ + H₃C₆H₅O₇ → 3H₂O + 3CO₂ + Na₃C₆H₅O₇.

6 0
3 years ago
Other questions:
  • [TG.05]Which of these statements best explains why P waves arrive earlier than S waves at the seismic station?
    12·2 answers
  • 20 POINTS!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
    13·1 answer
  • Why are metals good conductors of heat and electricity?
    5·2 answers
  • When 45.8 g of K2CO3 react with excess HCI, 46.3 g of KCl are formed. Calculate the theoretical and % yields of
    15·1 answer
  • Round off or add zero to the following calculated answers to give a final answer with three significant figures: 3.528x10exponen
    5·1 answer
  • What are some similarities of solids and gases?
    9·2 answers
  • How many atoms are there in 5.8 mol of iron
    14·1 answer
  • A high energy state is not ideal for atoms, as a result, they form bonds with other atoms. In doing so, what happens to the ener
    8·1 answer
  • 4.515 x 10^24 atoms of purellium distinkamide is equal to ___ moles?<br><br> 7.5<br> 6.2<br> 19.2
    13·1 answer
  • What happens when an object has a density greater than that of the surrounding liquid?
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!