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
netineya [11]
3 years ago
11

A student has 5 mL of 0.300 M (NH4)2CrO4 solution. What is the concentration of NH4+ in this solution?

Chemistry
1 answer:
mixer [17]3 years ago
4 0
The answer is 0.600 M; but I don't know how to get to that answer.
You might be interested in
When PCl5 solidifies it forms PCl4+ cations and PCl6– anions. According to valence bond theory,
rewona [7]

Hey there!

No of hybrid orbitals , H = ( V +S - C + A ) / 2

Where H = no . of hybrid orbitals

V = Valence of the central atom = 5

S = No . of single valency atoms = 4

C = No . of cations = 1

A = No . of anions = 0

For PCl4 +

Plug the values we get H = ( 5+4-1+0) / 2

H =  4 ---> sp3 hybridization

sp3 hybrid orbitals are used by phosphorous in the PCl4+ cations

Answer C

Hope that helps!

3 0
3 years ago
Which of the following is a synthesis reaction?
nadezda [96]

Synthesis reaction is a reaction where two or more substances combine to form a new compound. <span>It is a reaction which releases energy in the form of heat and light. Therefore, it is an exothermic reaction. </span>From its the definition the correct answer is the third option where carbon dioxide and water combine to form carbonic acid. 

6 0
3 years ago
Read 2 more answers
Identify the type of chemical reaction of cobalt (III) fluoride
zysi [14]

The compound crystallizes in the aluminium trifluoride motif. Each fluoride is a doubly bridging ligand. The cobalt centers are octahedral.


CoF3 decomposes upon contact with water to give oxygen:


4 CoF3 + 2 H2O → 4 HF + 4 CoF2 + O2

It reacts with fluoride salts to give the anion [CoF6]3−, which is also features high-spin, octahedral cobalt(III) center.

4 0
3 years ago
A bond in which one atom contributes both bonding electrons to a covalentbond
yKpoI14uk [10]
<h3>Answer:</h3>

A coordinate bond

<h3>Explanation:</h3>
  • A chemical bond is a force of attraction between two or more atoms of elements.
  • Covalent bond is a type of chemical bond that occurs between non-metal atoms.
  • It occurs as a result of sharing of electrons between the non-metal atoms.
  • Atoms involved in covalent bond formation may contribute equally to the bond formation or the electrons shared may come form one of the atoms.
  • When the electrons shared in a covalent bond are derived from one atom, then the covalent bond is known as a coordinate bond.
4 0
3 years ago
Cloudy nights are often warmer than clear nights. Why is this so?
dsp73

Answer: B

Explanation: The clouds act almost like a lid. Think of it like when you put tin foil over food before it goes in the oven. so that even after it is removed from the heat the tin foil traps it causing it to stay warm.

4 0
3 years ago
Other questions:
  • What is the mass of 1 centimeter cubes of gold
    6·1 answer
  • Arsenic does not have any valence electrons in the 3D orbital because​
    12·1 answer
  • PLEASE HURRY!! ONLY ANSWER IF YOU KNOW FOR SURE
    8·1 answer
  • Which of the following is an oxidation half-reaction?
    5·1 answer
  • For the following questions, use a periodic table and your atomic calculations to find the unknown information about each isotop
    7·1 answer
  • A 30.2 mL aliquot of a 30.0 wt% aqueous KOH solution is diluted to 1.20 L to produce a 0.173 M KOH solution. Calculate the densi
    6·1 answer
  • Factors that limit a technological design are called constrains. But why?
    10·1 answer
  • Which force acts an an object to move it from rest or a constant, straight-line motion?
    6·1 answer
  • What volume of 0.20 M solution of HCI will be required to neutralize 10.0 mL of a 0.60 M
    14·1 answer
  • Zora wants to dissolve a solute in a solvent quickly. Which best describes what she should do?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!