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
mr_godi [17]
3 years ago
14

If you use 19 mL of 0.100 M KMnO4, how many moles have you used? The answer has to be in four decimal places (do not forget the

leading zero). No scientific notation.
How much 5.0 M H2SO4 needs to be used to make 152 mL of 1.0 M? Round answer to nearest whole number and omit units.
Chemistry
1 answer:
Scorpion4ik [409]3 years ago
3 0
1)

Volume = 19 / 1000 = 0.019 L

n = M * V

n = 0.100 * 0.019

n = 0.0019 moles
__________________________

2)

 M₁ * V₁ = M₂* V₂

5.0 * V₁ = 1.0 * 152

5.0 V₁ = 152

V₁ = 152 / 5.0

V₁ = 30.4 mL
______________________________________

<span>hope this helps!</span>
You might be interested in
Tell me a hypothesis for the corrosion experiment for iron nails?
Nastasia [14]
The more acidic the substance is, the more the iron nails will corrode (this obviously depends on what your experiment is but hope this helped in some way)
5 0
3 years ago
Kjnlnkljnljknjnjjnjnjnjnjnnjnj
My name is Ann [436]
Lajdhskskdhskhdksnsjsndjs
6 0
3 years ago
Three principal models of isostasy are used: 1. The Airy–Heiskanen model – where different topographic heights are accommodated
miss Akunina [59]

Answer:

the answer is B

Explanation:

8 0
3 years ago
Which of the following is a type of electromagnetic radiation?
emmasim [6.3K]
A type of electromagnetic radiation would be electromagnetic waves
6 0
3 years ago
Read 2 more answers
Describe the pattern of the lewis dot structure of the first 18 elements
posledela

Explanation: Lewis dot structures are the structures which represent the valence electrons of an atom. The dots in the structure are considered as the valence electrons.

First 18 elements of the periodic table are Hydrogen(H), Helium (He), Lithium (Li), Beryllium (Be), Boron (B), Carbon (C), Nitrogen (N), Oxygen (O), Fluorine (F), Neon(Ne), Sodium (Na), Magnesium (Mg), Aluminium (Al), Silicon (Si), Phosphorous (P), Sulfur (S), Chlorine (Cl) and Argon(Ar).

The valence electrons are the electrons which are present in the outermost shell of an atom. The electronic configuration of the elements are:

Hydrogen (H) = 1s^1 ; Valence electrons = 1

Helium (He) = 1s^2 ; Valence electrons = 2

Lithium (Li) = 1s^22s^1 ; Valence electrons = 1

Beryllium (Be) = 1s^22s^2 ; Valence electrons = 2

Boron (B) = 1s^22s^22p^1 ; Valence electrons = 3

Carbon (C) = 1s^22s^22p^2 ; Valence electrons = 4

Nitrogen (N) = 1s^22s^22p^3 ; Valence electrons = 5

Oxygen (O) = 1s^22s^22p^4 ; Valence electrons = 6

Fluorine (F) = 1s^22s^22p^5 ; Valence electrons = 7

Neon (Ne) = 1s^22s^22p^6 ; Valence electrons = 8

Sodium (Na) = 1s^22s^22p^63s^1 ; Valence electrons = 1

Magnesium (Mg) = 1s^22s^22p^63s^2 ; Valence electrons = 2

Aluminium (Al) = 1s^22s^22p^63s^23p^1 ; Valence electrons = 3

Silicon (Si) = 1s^22s^22p^63s^23p^2 ; Valence electrons = 4

Phosphorous (P) = 1s^22s^22p^63s^23p^3 ; Valence electrons = 5

Sulfur (S) = 1s^22s^22p^63s^23p^4 ; Valence electrons = 6

Chlorine(Cl) = 1s^22s^22p^63s^23p^5 ; Valence electrons = 7

Argon (Ar) = 1s^22s^22p^63s^23p^6 ; Valence electrons = 8

  • Elements hydrogen and helium belong to period 1 of the period table, so the lewis dot structures will have maximum of 2 electrons
  • Elements from lithium to neon belong to period 2 and the lewis dot structures will have maximum of 8 electrons.
  • Elements from sodium and argon belong to the period 3 of the periodic table, and will have maximum of 8 electrons in their lewis dot structures.

Lewis dot structures are attached below.

6 0
3 years ago
Other questions:
  • Complete the equation Fe + HOH = ?
    13·2 answers
  • An I.V. infusion order is received for Lidocaine 2 g in 250 ml of 0.9% NaCl to be infused at 3 mg/min. What will the flow rate b
    6·1 answer
  • You are on an alien planet where the names for substances and the units of measures are very unfamiliar.
    14·1 answer
  • Is A B C or D I need help
    6·1 answer
  • The following chemical equation is unbalanced. When the equation is balanced, what is the coefficient for pure calcium (Ca)? A.
    9·2 answers
  • How is hyperglycaemia related to diabetes
    11·1 answer
  • In some places timber companies remove all the trees from entire hillside when they are harvesting logs and farmers till the soi
    14·1 answer
  • What is the relative humidity of the air when the dry-bulb temperature is 4°C and the dewpoint is -4°C?
    12·1 answer
  • How can you use the Periodic Table of Elements to help you find information about specific elements? PLZZZ HELP MEEEEEE!!!!
    8·1 answer
  • What is the main purpose of the nervous system?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!