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]
3 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]3 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
A screw has 4 threads per centimeter and a circumference of 2 centimeters. The mechanical advantage of the screw is?
sashaice [31]
<span>The answer is 8. Hope this help!!!

</span>
3 0
3 years ago
Read 2 more answers
What is the daughter nucleus (nuclide) produced when 227th undergoes alpha decay?
Elina [12.6K]

Answer: -

²²³Ra is the daughter nuclide produced when ²²⁷Th undergoes alpha decay

Explanation: -

When alpha decay occurs, the mass number of the parent decreases by 4 and the atomic number decreases by 2.

Mass number of ²²⁷Th =227

Atomic number of ²²⁷Th = 90

Mass number of daughter = 227 - 4 = 223

Atomic number of daughter = 90 - 2 = 88

88 is the atomic number of Ra Radium.

Thus the daughter is ²²³Ra

6 0
3 years ago
Which is a homogeneous mixture
klemol [59]
A homogeneous mixture is a mixture that is mixed so well together that you cannot see the different components that make up the mixture as the ingredients will not separate out, even over time.  
3 0
3 years ago
Read 2 more answers
Give an example of a mutation and explain how it could affect an organism?<br> Your answer
ella [17]

Answer:

A mutation is a heritable change in the genetic material of an individual. The change can be large or small. Large changes involve the loss, addition, duplication, or rearrangement of whole chromosomes or chromosome segments. Mutations can affect an organism by changing its physical characteristics (or phenotype) or it can impact the way DNA codes the genetic information (genotype). When mutations occur they can cause termination (death) of an organism or they can be partially lethal.

Explanation:

8 0
3 years ago
What are the physical properties used by scientists to describe all matter?
DerKrebs [107]
The physical properties used by scientists to describe all matter, sight, smell, taste, color, texture, mass, weight, volume, and density.
5 0
3 years ago
Other questions:
  • If I have 6 moles of a gas at a pressure of 5.8 atm and a volume of 12 liters, what
    9·1 answer
  • In a system when energy is transformed from one form to another
    5·1 answer
  • Which is the metric root for length?<br> a. gram<br> b. liter<br> c. meter<br> d. second
    5·1 answer
  • What is the freezing point of a solution of 0.500 mol of sucros in 500.0 mL of water?
    13·1 answer
  • If 16 mol of oxygen were reacted with excess hydrogen gas, how many moles of water would be produced?
    9·2 answers
  • Roland is measuring a physical property of an object. He records the measurement:
    5·1 answer
  • Which represents a balanced nuclear equation?
    13·1 answer
  • This is the chemical formula for carvone (the chemical that gives spearmint its flavor): An organic chemist has determined by me
    11·1 answer
  • While Cameron is intensely working out, his muscles begin to get sore and start to burn. What type of cellular
    6·1 answer
  • Question 1
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!