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dimulka [17.4K]
2 years ago
13

A compound contains 73.47% carbon, 10.20% hydrogen and 16.33% by mass of oxygen. The

Chemistry
1 answer:
DochEvi [55]2 years ago
8 0
322 g/mol it’s the answer for the calculate the molecular formula
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A substance that increases the concentration of hydroxide ions in aqueous solution.
stepladder [879]
The answer that complete the sentence is "Arrhenius base".

The complete sentence is: A substance that increases the concentration of hydroxide ions in aqueous solution is an Arrhenius base.

Arrhenius' acid and base model says that an acid is a substance that contains hydrogen and ionizes in aqueous solution producing protons (H+) and a base is a substance that cointains hydroxide and release it in aqueous solution.
5 0
3 years ago
Diamond is a natural form of pure carbon. What number of atoms of carbon are in a 1.00-carat diamond (1.00 carat = 0.200 g)?
slega [8]

Answer:

1.004×10²²

Explanation:

The molar mass of carbon is 12 g/mol

which means that:

<u>1 mole of carbon atoms has a mass of 12 grams.</u>

Since, diamond is a allotrope of carbon.

Mass of  1.00-carat diamond in grams is:

1.00 carat = 0.200 g

<u> Since, 1 mole of C contains 6.022×10²³ atoms of C</u>

So,  

12 grams contains 6.022×10²³ atoms of C

1 gram contains 6.022×10²³/ 12 atoms of C

0.200 gram contains (6.022×10²³/ 12)×0.200 atoms of C

Thus,

<u>1 carat diamond contains 1.004×10²² atoms of C.</u>

8 0
2 years ago
Identify which of the following two reactions you would expect to occur more rapidly: (1) addition of HBr to 2-methyl-2-pentene
arlik [135]

Answer:

(1) addition of HBr to 2-methyl-2-pentene

Explanation:

In this case, we will have the formation of a <u>carbocation</u> for each molecule. For molecule 1 we will have a <u>tertiary carbocation</u> and for molecule 2 we will have a <u>secondary carbocation</u>.

Therefore the <u>most stable carbocation</u> is the one produced by the 2-methyl-2-pentene. So, this molecule would react faster than 4-methyl-1-pentene. (See figure)

3 0
3 years ago
When bonding atoms seek to achieve a stable
Ronch [10]

Answer:

a stable octet state

Explanation:

a stable octet state is when all the energy levels of the atoms are filled with electrons and they are stabe

6 0
3 years ago
Over coffee and croissants at breakfast one day, your friend Reuben (an expert chemist) says this: "Soluble metal oxides form hy
Kitty [74]

Answer:

Explanation:

The product formed will be alkaline solution of potassium hydroxide .

K₂O + H₂O = 2 KOH .

Therefore  K₂O is called basic oxide .

5 0
3 years ago
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