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
taurus [48]
3 years ago
15

PLEASE HELP ME! Determine the number of atoms in 4.27 g gold.

Chemistry
1 answer:
solmaris [256]3 years ago
6 0

This can be done with some simple dimensional analysis. First you convert your gram of gold into moles of gold There are 196.97 grams of gold for every one mole of gold so you divide 4.27 by 196.67 to get 0.0217 moles of gold. You then multiply the moles of gold by Avogadro's number, 6.02 X 10^23. Avogadro's number indicates the number of atoms in one mole. Therefore, there are 1.307 X 10^22 atoms in 4.27 grams of gold.  

You might be interested in
Explain why hydrogen will form an ionic bond with fluorine but only forms covalent bonds with carbon
vaieri [72.5K]

A fluorine atom has seven valence electrons. ... Carbon will then have five valence electrons (its four and the one its sharing with fluorine). Covalently sharing two electrons is also known as a “single bond.” Carbon will have to form four single bonds with four different fluorine atoms to fill its octet.

4 0
3 years ago
Read 2 more answers
PLEASE ANSWER ASAP- In the solid state, how does Water compare to Neon and Argon? Why do you think they act differently?
alekssr [168]
Neon and Argon are known as the noble gases. This means that there inert and don’t typically react. The noble gases have full outer shells and therefore satisfy the octet rule. Hydrogen, on the other hand, must lose an electron to become stable. That is why it reacts.
3 0
3 years ago
For work to be done on an object:
Mazyrski [523]

Answer:

The object has to move a distance when a force is applied to it

Explanation:

For work to be done on a body the force applied must move the body through a particular distance.

  Work done  = Force x distance  

If no distance is moved by the force, no work is done.

Also, the angle between the force and the distance must be 0 to do the maximum work on the body.

8 0
3 years ago
1. List the seasons from longest to shortest, including the number of days in each season.
GenaCL600 [577]
Search it up bro it’s on the internet lol
4 0
3 years ago
All the members of this family (inner transition metals) are both ______________ and _____________.
avanturin [10]

Answer:

The actinides and the lanthanides

3 0
3 years ago
Read 2 more answers
Other questions:
  • A binary compound created by reaction of nitrogen and an unknown element E contains 30.46% N and 69.54% E by mass. If the formul
    13·1 answer
  • Help cure the stupid by answering this also will give crown if right
    10·2 answers
  • Write a balanced equation for the reaction between sulphuric acid and potassium hydroxide
    11·1 answer
  • As a chemical reaction occurs, the thermometer in the container records an increase in temperature. What is true of the reaction
    9·2 answers
  • ASAP MULTIPLE CHOICE
    7·1 answer
  • !!15 points!!! Antifreeze is added to a car's radiator to protect it. Which of the following
    6·1 answer
  • Compare the way that frogs breathe when they are tadpoles with the way frogs breathe when they are adults.
    7·2 answers
  • Is mercury chloride ionic or covalent
    15·1 answer
  • How do you find the oxidation numbers for H3PO4
    5·1 answer
  • What are communication skills??
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!