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
maw [93]
3 years ago
13

How to calculate moles​

Chemistry
1 answer:
Alex Ar [27]3 years ago
3 0

Answer:

Moles = Mass / Mr

Moles = Concentration x Volume

Explanation:

Moles can be worked out in several ways depending on the information you are given. Some of the equations containing moles are:

Moles = Mass / Mr

Moles = Concentration x Volume

You might be interested in
Ions Types of Ions Cation Anion 1. H+ 2.O-2 3.Ba2+ 4.Br- 5.Hg2+ 6.Li+ 7.Ca2+ 8.F- 9.S-2 10.Fe3+
fiasKO [112]

Explanation:

The species with a positive charge over it, which means lack of electrons are called cations. Whereas the species with negative over it, meaning it has an excess of electrons with it are called anions.

From the list given the cations are

H+, Ba2+, Hg2+, Li+, Ca2+ and Fe2+

Whereas anions from the list are

O-2, Br-5, F-, S-2.

A Combination of cation and anions make an ionic compound in which cation is written first and then anion.

6 0
3 years ago
The image shows the formation of a fault-block mountain.
marissa [1.9K]

1. Two parallel normal faults form.

4. The hanging wall on the left slides down relative to the footwall.

5. The hanging wall on the right slides down relative to the footwall.

7 0
3 years ago
Read 2 more answers
A 40-lb container of peat moss measures 14× 20× 30 in. A 40-lb container of topsoil has a volume of 1.9 gal. Calculate the avera
Viktor [21]

The average density of the peat moss in units of g/cm³ is 2.52 g/cm³

<h3>How to convert 40 lb to grams (g)</h3>

We'lol begin by converting 40 lb to grams (g). This can be obtained as follow:

1 lb = 453.592 g

Therefore,

40 lb = (40 × 453.592) / 1 lb

40 lb = 18143.68 g

<h3>How to convert 1.9 gal to cm³</h3>

We can convert 1.9 gal to cm³ as follow:

1 gal = 3785.41 cm³

Therefore,

1.9 gal = (1.9 gal × 3785.41 cm³) / 1 gal

1.9 gal = 7192.279 cm³

<h3>How to determine the density </h3>

The density can be obtained as follow:

  • Mass = 18143.68 g
  • Volume = 7192.279 cm³
  • Density =?

Density = mass / volume

Density = 18143.68 / 7192.279

Density = 2.52 g/cm³

Learn more about density:

brainly.com/question/952755

#SPJ1

8 0
2 years ago
Nitrogen (N2) and hydrogen (H2) react to form ammonia (NH3). Consider a mixture of six nitrogen molecules and six hydrogen molec
Nezavi [6.7K]

Answer:

a)  No molecules of hydrogen

b) four molecules of ammonia

c) four left molecules of nitrogen.

Explanation:

The balanced reaction between nitrogen and hydrogen molecules to give ammonia molecules is:

N_{2}(g)+3H_{2}(g) -->2NH_{3}

Thus one molecule of nitrogen will react with three molecules of hydrogen to give two molecules of ammonia.

We have six molecules of each nitrogen and hydrogen in the closed container and they undergo complete reaction it means the limiting reagent is hydrogen. For six molecules of nitrogen, eighteen molecules of hydrogen will be required.

So six molecules of hydrogen will react with two molecules of nitrogen to give four molecules of ammonia.

The product mixture will have

a) No molecules of hydrogen

b) four molecules of ammonia

c) four left molecules of nitrogen.

7 0
3 years ago
A tau lepton decays into an electron, an electron antineutrino and a tau neutrino. Write out this reaction in symbolic (equation
Dmitry [639]

Answer:

.

Explanation:

hhidhwvagaue hrurifv3v2vd

5 0
3 years ago
Other questions:
  • In 1897, Joseph Thomson discovered that atoms contained electrons. He proposed a change in the atomic theory of that time, and t
    12·1 answer
  • Which chemical is least likely to undergo a chemical reaction
    9·1 answer
  • Why are hydrogen ions and hydroxide ions omitted from the net reaction for the hydrolysis of water?
    6·2 answers
  • The pressure of a mixture of nitrogen, carbon dioxide, and oxygen is 300 kPa. What is the partial pressure of oxygen if the part
    7·1 answer
  • A microscope containing two or more lenses is an
    6·1 answer
  • When table salt is placed in water and stirred it dissolves and a clear liquid is obtained. This process is a
    12·1 answer
  • A tank has 1.90 mols of Nz gas under a pressure of 4.972 atm at 31.8 °C.
    15·2 answers
  • What is a force is needed to stop a child form slipping on ice
    14·1 answer
  • How many atoms of Neon are in 65.0 L of Neon gas?
    8·2 answers
  • WILL MARK BRAINLIEST IF YOU ANSWER EVERY QUESTION!!!!
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!