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4 years ago

The compounds 2-butanol and 2-butene both contain

2 answers:

4 0

The answer is (3) carbon atoms. For 2-butanol, it contains single bonds only and with C, O, H atoms. For 2-butene, it contains single bonds and double bonds both. And contains C, H atoms.

RoseWind [281]4 years ago

3 0

Answer:

(3) carbon atoms

Explanation:

2- butanol is a secondary alcohol containing C,H and O with a molecular formula: C4H10O and a structural formula: CH3CH2CH(OH)CH3

2- butene is an unsaturated hydrocarbon i.e. an alkene containing C and H only with a molecular formula: C4H8 and a structural formula:

CH3CH2CH=CH2

Based on the given options, the only common ground between 2-butanol and 2-butene is that both contain carbon atoms.

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How many moles are in 272 grams of hydrogen peroxide (H2O2) ?

Strike441 [17]

Answer:

8 moles

Explanation:

When we are asked to convert from grams of a substance into moles, we have to use the substance's molar mass.

Meaning that for this problem, we'll <em>use the molar mass of hydrogen peroxide</em> (H₂O₂), as follows:

272 g ÷ 34 g/mol = 8 mol

There are 8 moles in 272 grams of hydrogen peroxide.

7 0

3 years ago

✓7<br> Is it rational or irrational

Elden [556K]

Answer:

Irrational

Explanation:

5 0

4 years ago

Read 2 more answers

Which compounds, on heating with an excess of concentrated sulfuric acid, produce only one product with molecular formula C7H10?

podryga [215]

Answer:

1 and 2

Explanation:

When Concentrated H2SO4 reacted with the alcohols, they produce cycloalkenes. This is a mechanism known as dehydration of alcohols with an acid catalyst. This is because concentrated H2SO4 acts as a great oxidizing agent. In the process, the alcohols are heated to a high temperature with an excess of pure sulfuric acid. By passing the gases through a sodium hydroxide solution, the carbon dioxide and sulfur dioxide produced by reactive species are eliminated. The reaction mechanism shown in the image below indicates that only compounds 1 and 2 produce only one product.

8 0

3 years ago

CH4(g) + H2O(g) CO(g) + 3H2(g)

boyakko [2]

Presuming the arrow is between H20 and CO

On the left there are 2 gas moles.
On the right there are 4 gas moles.

The equilibrium will shift to the side with the most no. He gas moles when pressure is decreased.

Therefore the answer is A, since 4>2.

If you have any questions, feel free to ask

5 0

3 years ago

Calculate the mass percent composition of sulfur in Al2(SO4)3. Calculate the mass percent composition of sulfur in Al2(SO4)3. 28

ludmilkaskok [199]

Answer:

The mass percent of sulfur is 28.12% (option 1)

Explanation:

Step 1: Data given

Atomic mass of Al = 26.98 g/mol

Atomic mass of S = 32.065 g/mol

Atomic mass of O = 16.0 g/mol

Step 2: Calculate the molar mass of Al2(SO4)3

In 1 molecule Al2(SO4)3 we have 2 Aluminium atom, 3 Sulfur atoms and 12 oxygen atoms

Molar mass of Al2(SO4)3 = 2*26.98 + 3*32.065 + 12*16 .0

Molar mass of Al2(SO4)3 = 342.155 g/mol

Step 3: Calculate the mass percent of sulfur

In 1 molecule Al2(SO4)3 we have 2 Aluminium atom, 3 Sulfur atoms and 12 oxygen atoms

Mass % sulfur = (3*atomic mass of S/ molar mass of Al2(SO4)3) * 100 %

Mass % sulfur = (3*32.065 / 342.155) * 100%

Mass % sulfur = 28.12 %

The mass percent of sulfur is 28.12% (option 1)

3 0

4 years ago