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
daser333 [38]
3 years ago
13

Mole Conversion: How many atoms are in 0.830 moles of gold? ​

Chemistry
1 answer:
denis23 [38]3 years ago
6 0

Answer:

<h2>4.99 × 10²³ atoms</h2>

Explanation:

The number of atoms of gold can be found by using the formula

<h3>N = n × L</h3>

where n is the number of moles

N is the number of entities

L is the Avogadro's constant which is

6.02 × 10²³ entities

From the question we have

N = 0.83 × 6.02 × 10²³

We have the final answer as

<h3>4.99 × 10²³ atoms</h3>

Hope this helps you

You might be interested in
GOOD MORNING GUYS☕☕☕☕​
Vinvika [58]

Answer:

GOOD MORNING DIDI be happy

8 0
2 years ago
Read 2 more answers
Identify the hybridization of each carbon atom for the molecule above
ipn [44]

Carbons starting from the left end:

  1. sp²
  2. sp²
  3. sp²
  4. sp
  5. sp

Refer to the sketch attached.

<h3>Explanation</h3>

The hybridization of a carbon atom depends on the number of electron domains that it has.

Each chemical bond counts as one single electron domain. This is the case for all chemical bonds: single, double, or triple. Each lone pair also counts as one electron domain. However, lone pairs are seldom seen on carbon atoms.

Each carbon atom has four valence electrons. It can form up to four chemical bonds. As a result, a carbon atom can have up to four electron domains. It has a minimum of two electron domains, with either two double bonds or one single bond and one triple bond.

  • A carbon atom with four electron domains is sp³ hybridized;
  • A carbon atom with three electron domains is sp² hybridized;
  • A carbon atom with two electron domains is sp hybridized.

Starting from the left end (H₂C=CH-) of the molecule:

  • The first carbon has three electron domains: two C-H single bonds and one C=C double bond; It is sp² hybridized.
  • The second carbon has three electron domains: one C-H single bond, one C-C single bond, and one C=C double bond; it is sp² hybridized.
  • The third carbon has three electron domains: two C-C single bonds and one C=O double bond; it is sp² hybridized.
  • The fourth carbon has two electron domains: one C-C single bond and one C≡C triple bond; it is sp hybridized.
  • The fifth carbon has two electron domains: one C-H single bond and one C≡C triple bond; it is sp hybridized.

8 0
3 years ago
Consider the five balanced chemical reactions listed below, all using O2 as a reactant. Normally, O2 is an excess reagent for re
ad-work [718]

Answer: option E. None because in all the reactions O2 is in excess

Explanation:

7 0
3 years ago
Ca+HCI—&gt;CaCI2+H2, what is the reaction?
arsen [322]

Answer:

single replacement reaction

Explanation:

This is a kind of single replacement reaction where you switch either cations or anions. Here you switched Ca for H and produced Cacl2 and H2 gas by itself.

4 0
3 years ago
Read 2 more answers
What are some<br> double replacement reactions you see every day
Cerrena [4.2K]

Answer:

  • Sodium Bicarbonate (β-3) + Vinegar
  • Lead Nitrate + Potassium iodide

Explanation:

Baking Soda and vinegar cause an explosion, in which the bicarbonate and vinegar are replaced by nitrate (∨) and oxide (Ф.) When you combine lead nitrate (Δω) with potassium iron, you also see the ingredients you combined disappear, which shall cause a replace reaction

6 0
3 years ago
Other questions:
  • In your own words, give a summary of the history of the atom. Make sure to use names of models and the scientists associated wit
    7·1 answer
  • In 24.02g of carbon there are _blank_atoms of carbon?
    10·1 answer
  • HELP PLEASE!!!
    5·1 answer
  • The pH of an acidic solution is 2.11. What is [H⁺]
    5·2 answers
  • Need help urgently!!
    13·1 answer
  • The partial symbol for a particular ion is 26M2+ What are the number of electrons contained in one ion
    12·1 answer
  • 3. What do you call the total path covered by the moving body? *
    9·1 answer
  • I + I -----&gt; I2 + 146.3 kJ Is this reaction exothermic or endothermic?
    11·1 answer
  • Which of these actions would the cerebellum be in charge of?
    6·1 answer
  • 12)
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!