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
Anon25 [30]
3 years ago
8

What is the molarity of a solution composed

Chemistry
1 answer:
Neporo4naja [7]3 years ago
7 0

Answer:

0.0845 M

Explanation:

First we <u>convert 4.27 grams of potassium iodide into moles</u>, using its <em>molar mass</em>:

  • Molar Mass of KI = 166 g/mol
  • 4.27 g ÷ 166 g/mol = 0.0257 mol

Now we <u>calculate the molarity of the solution</u>, using <em>the number of moles and the given volume</em>:

  • Molarity = moles / liters
  • Molarity = 0.0257 mol / 0.304 L = 0.0845 M
You might be interested in
Who is considered the founder of the periodic table of the elements?
nata0808 [166]

Answer:

Dmitry Mendeleev

Explanation:

Around 1869 a Russian scientist, Dmitry Mendeleev formed what is now known as the periodic table or chart. The Mendeleevian periodic table was based on the atomic weights of elements using the periodic law. The periodic law states that "chemical properties of elements are a periodic function of their atomic weights".

The modern periodic table was re-stated by Henry Moseley in the 1900s. He changed the basis of the periodic law to atomic masses.

7 0
3 years ago
How is an isotope different from the standard form of a chemical element?
velikii [3]

Answer:

  • The standard form of a chemical element is the natural mixture of several isotopes of the same element, which is atoms with the same number of protons but different number of neutrons, while an isotope is a particular kind of atom with a definite number of neutrons.

Explanation:

A <em>chemical element</em> is a pure substance formed by atoms with the same atomic number (number of protons). This is because it is the number of protons what identifies an element.

For example: oxygen is a chemical element, so oxygen is formed by only atoms of oxygen, and the atomic number of those atoms is 8, because every oxygen atom has 8 protons.

Nevertheless, some atoms of oxygen, may have different number of neutrons. Isotopes are different kind of atoms of the same element, which only differ in the number of neutrons. So, some atoms of oxygen will have 8 neutrons, other 9 neutrons, and other 10 neutrons (those are the stable isotopes of oxygen).

That difference in neutrons, is generally accepted that, does not modifiy substantially the chemical properties of the element, but the mass number. So, the isotopes with more neutrons wil be heavier, and the isotopes with less neutrons will be lighter.

  • Mass number = number of protons + number of neutrons.

In general a chemical element is formed by a mixutre of isotopes of the same element.

4 0
3 years ago
Read 2 more answers
Is mercury good in making battery
mars1129 [50]

Answer:

No, Mercury can actually cause poisoning. That is why other metals, such as Alkaline metals, are used in making batteries

7 0
3 years ago
Read 2 more answers
.............................................................
mafiozo [28]

5 oxygen atoms are there in the product

4 0
3 years ago
Read 2 more answers
Looking at the periodic table, which of these elements has the smallest atomic radius?
Sauron [17]
Helium
Remember: electron filling of atomic shell  ...
 The element which have electron in the lowest quantum shell will have the smallest atomic radius\

He:1s1   (Helium)

H:1s2   (hydrogen)
8 0
2 years ago
Other questions:
  • Determine the molecular mass of a gas where 3.87 g occupies 0.896 l at standard conditions.
    12·1 answer
  • Which conversion factor should you use first to calculate the number of grams of co2 produced by the reaction of 50.6 g of ch4 w
    15·1 answer
  • When you turn on a radio, what type of energy transformation takes place?
    11·1 answer
  • How are the physical and chemical properties of atoms represented on the periodic table of elements
    8·1 answer
  • B) How many kilograms of carbon dioxide are formed when 24.42 g of iron is<br> produced?
    5·1 answer
  • Calculate the pressure of the CO₂ (g) in the container at 425 K.
    12·1 answer
  • For a wind farm to be effective, it needs to be in a place with what kind of wind?
    7·2 answers
  • What is the purpose of the periodic table?
    10·1 answer
  • Plz help!<br><br> What must change in order to change the amount of power?
    8·1 answer
  • 5 Facts about Geology
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!