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
muminat
3 years ago
11

1.How many moles of each element are in 0.0250 mol of K 2 Cr O 4? 2. How many moles of ammonium ions are in 4.50 mol of (N H 4 )

2 CO 3 ? With all the process to see where you get the answers please
Chemistry
1 answer:
noname [10]3 years ago
5 0

Answer:

1. 0.0500 moles K, 0.0250 moles Cr and 0.1000 moles O.

2. 9.00 moles ammonium ions are present.

Explanation:

1. In 1mol of K2CrO4 there are 2 moles of K, 1 mole of Cr and 4 moles of O.

The moles in 0.0250 moles K2CrO4 are:

0.0250mol * 2 = 0.0500 moles K

0.0250mol * 1 = 0.0250 moles Cr

0.0250mol * 4 = 0.1000 moles O

2. In 1 mole of (NH4)2CO3 there are 2 moles of ammonium ions, NH₄⁺.

In 4,50 moles are:

4.50 moles * 2 = 9.00 moles ammonium ions are present

You might be interested in
Which of the following statements is subjective? Van Gogh painted beautiful works of art. The planets revolve around the sun. Bl
mezya [45]
The "Van Gogh" one is subjective, because it expresses opinion and is not a true, hard fact. :)
4 0
4 years ago
Read 2 more answers
How many grams of RbOH are present in 35.0 mL of a 5.50 M RbOH solution?​
Ganezh [65]
I think 5.50 M x 35.0 mL x molar mass of RbOH = mass (g)
8 0
4 years ago
What is the difference between Electron Geometry and Molecular Geometry?
miskamm [114]

Answer:

Electron Geometry describes arrangement is electron groups & Molecular Geometry describes the arrangement of atoms

Explanation:

The picture above better explains it, hopefully this helps :)

8 0
3 years ago
Which of the following terms is a term that could refer to heterogeneous matter? a. element b. mixture c. compound d. solution
kupik [55]

Answer : b. mixture

<h3>Further explanation</h3>

Element and compound are included in pure substance where the composition is the same in each part

Elements are made up of 1 type of atom, while the compounds of 2 or more types of atoms , both can be represented in the form of chemical symbols

A mixture is a combination of substances. The properties of a substance in the mixture component are unchanged

The mixture can be a homogeneous mixture or a heterogeneous mixture

  • the homogeneous mixture if each part has the same composition
  • the heterogeneous mixture if each part has a different composition

Solution including into Homogeneous mixture, while suspension into a heterogeneous mixture

So a term that could refer to heterogeneous matter : b. mixture

6 0
3 years ago
5. Write a short explanation for why simple molecular substances have no electrical
scZoUnD [109]
Simple molecules have no overall charge, or charged particles that can separate, so simple molecular substances cannot conduct electricity, even when liquid or dissolved in water.
7 0
3 years ago
Other questions:
  • List facts of protons, electrons and neutrons
    8·1 answer
  • 24 what is the correct name for the compound cocl?
    15·2 answers
  • I need help with math! <br>4.8 pints = ___ galons<br>​
    14·1 answer
  • Bacterial digestion is an economical method of sewage treatment. in the reaction, given below, bacterial tissue is an intermedia
    7·1 answer
  • Wind is related to the movement of warm and cold air masses. Which kind of heat transfer does this represent?
    15·1 answer
  • The mitochondria is ____where
    8·1 answer
  • Example of gases collected through upward delivery​
    5·2 answers
  • 40. What is the mass of 3 moles of H 2 O
    15·1 answer
  • Ammonia, nh3, for fertilizer is made by causing hydrogen and nitrogen to react at high temperature and pressure. How many moles
    10·1 answer
  • What happens when two substances of different temperatures come in contact with each other?
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!