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3 years ago

What does the chemical formula C3H2O, tell about a molecule of the compound it represents?

Chemistry

2 answers:

Korvikt [17]3 years ago

5 0

Answer:

It tells the chemical formula

Explanation:

slamgirl [31]3 years ago

4 0

Chemical formulas are used to describe the types of atoms and their numbers in an element or compound. The atoms of each element are represented by one or two different letters. When more than one atom of a specific element is found in a molecule, a subscript is used to indicate this in the chemical formula.

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Calculate the molar solubility of PbBr2 (Ksp = 4.67x10-6) in 0.10M NaBr solution.

Softa [21]

Explanation:

$PbBr_{2}$ will dissociate into ions as follows.

$PbBr_{2}(s) \rightleftharpoons Pb^{2+}(aq) + 2Br^{-}(aq)$

Hence, $K_{sp}$ for this reaction will be as follows.

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

We take x as the molar solubility of $PbBr_{2}$ when we dissolve x moles of solution per liter.

Hence, ionic molarities in the saturated solution will be as follows.

$[Pb^{2+}]$ = $[Pb^{2+}]_{o}$ + x

$[Br^{-}]^{2}$ = $[Br^{-}]_{o}$ + 2x

So, equilibrium solubility expression will be as follows.

$K_{sp}$ = $([Pb^{2+}]_{o} + x)([Br^{-}]_{o} + 2x)^{2}$

Each sodium bromide molecule is giving one bromide ion to the solution. Therefore, one solution contains $[Br^{-}]_{o}$ = 0.10 and there will be no lead ions. So, $[Pb^{2+}]_{o}$ = 0

So, $[Br^{-}]_{o} + 2x$ will approximately equals to $[Br^{-}]_{o}$ .

Hence, $K_{sp} = x[Br^{-}]^{2}_{o}$

$4.67 \times 10^{-6} = x \times (0.10)^{2}$

x = $4.67 \times 10^{-4}$ M

Thus, we can conclude that molar solubility of $PbBr_{2}$ is $4.67 \times 10^{-4}$ M.

5 0

3 years ago

Read 2 more answers

C8H10N4O2 is the chemical formula for caffeine, there are 8 carbons. List the 3 remaining elements in caffeine and how many atom

Nataly [62]

Caffeine that is C8H10N402 is molecule which made up of 4 different elements. apart from carbon the other element includes

element symbol
nitrogen N
oxygen O
hydrogen H
The number of atom present in caffeine molecule are as follows

Nitrogen=4 atoms
Oxygen=2 atoms
Hydrogen=10 atoms

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3 years ago

Which type of atom has the strongest attraction for electrons in bond formation? barium (Ba) chlorine (Cl) iodine (I) strontium

bezimeni [28]

Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions.
The type of atom has the strongest attraction for electrons in bond formation Chlorine (Ci) c<span>onsider the location of barium, chlorine, iodine, and strontium on the periodic table.</span>

6 0

4 years ago

Read 2 more answers

I have no idea on how to do this here is the question (For the following pairs of atoms, show how they transfer valence electron

Maru [420]

Answer:

uhh

Explanation:

i hope you find this answer

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