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
Andrew [12]
3 years ago
13

A chemist decomposes samples of several compounds; the masses of their constituent elements are listed. Calculate the empirical

formula for each compound.
a. 1.245 g Ni, 5.381 g I,
b. 2.677 g Ba, 3.115 g Br,
c. 2.128 g Be, 7.557 g S, 15.107 g

Chemistry
1 answer:
Zina [86]3 years ago
4 0

Answer:

you can see the empirical formula at the pic

You might be interested in
What is the pH of 15 mL of .2 M HCl
fenix001 [56]
Easy peasy! All we need to do is plug this formula into our calculator:

-log(M)

So, we'd plug in -log(.2), which is 0.7 :)
3 0
3 years ago
If 100% is not passed from one trophic level to the next, where does this energy go?
Sonja [21]
D is the answer to question

6 0
2 years ago
Read 2 more answers
The solubility product of PbI2 is 7.9x10^-9. What is the molar solubility of PbI2 in distilled water?
Agata [3.3K]

<u>Answer:</u> The molar solubility of PbI_2 is 1.25\times 10^{-3}mol/L

<u>Explanation:</u>

Solubility is defined as the maximum amount of solute that can be dissolved in a solvent at equilibrium.

Solubility product is defined as the product of concentration of ions present in a solution each raised to the power its stoichiometric ratio.

The balanced equilibrium reaction for the ionization of calcium fluoride follows:

PbI_2\rightleftharpoons Pb^{2+}+2I^-

                s       2s

The expression for solubility constant for this reaction will be:

K_{sp}=[Pb^{2+}][I^-]^2

We are given:

K_{sp}=7.9\times 10^{-9}

Putting values in above equation, we get:

7.9\times 10^{-9}=(s)\times (2s)^2\\\\7.9\times 10^{-9}=4s^3\\\\s=1.25\times 10^{-3}mol/L

Hence, the molar solubility of PbI_2 is 1.25\times 10^{-3}mol/L

3 0
3 years ago
What is bromin what is bromine what is bromine
yulyashka [42]

Answer:

Bromine is a chemical element with the symbol Br and atomic number 35. It is the third-lightest halogen, and is a fuming red-brown liquid at room temperature that evaporates readily to form a similarly colored gas.

3 0
3 years ago
Read 2 more answers
Electrons are:
Svetllana [295]

Answer:

B. Are fixed within electron orbitals

Explanation:

Electrons are found in the energy levels

4 0
3 years ago
Other questions:
  • 3 &amp; 4 Help pleaseeeee
    14·1 answer
  • What is the product of 3fe + 4h20 &gt; fe3o4+4h2
    13·1 answer
  • Which of the following is NOT an area of study in chemistry? * 1 point Biochemistry Physical chemistry Ergonomic chemistry Analy
    9·2 answers
  • How are elements with atomic masses greater than Uranium’s made?
    10·1 answer
  • How does induced transmutation produce trans uranium elements ?
    9·1 answer
  • Depicted below you will see the molecules COH2 and SO3 . Why is COH2 polar while SO3 isn’t?
    5·1 answer
  • The theory of _______ of matter states that cannot be created or destoryed
    9·1 answer
  • Which of the following substances contains a covalent bond?
    12·1 answer
  • A sealed 1.0L flask is filled with 0.500 mols of I_2 and 0.500 mols of Br_2. When the container achieves equilibrium the equilib
    10·1 answer
  • Which element has fewer than four dots in its electron dot diagrams?
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!