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____ [38]
4 years ago
15

Which compound is an alkyne? (1) C2H2 (3) C4H8 (2) C2H4 (4) C4H10

Chemistry
2 answers:
Romashka [77]4 years ago
6 0

Answer: C_2H_2

Explanation:

Saturated hydrocarbons are defined as the hydrocarbons in which a single bond is present between carbon and carbon atoms. The general formula for these hydrocarbons is C_nH_{2n+2} and are called as alkanes.

Unsaturated hydrocarbons are defined as the hydrocarbons which have double or triple covalent C-C bonds. They are known as alkenes and alkynes respectively. The general formula for these hydrocarbons is C_nH_{2n} and C_nH_{2n-2} respectively.

C_4H_8 and C_2H_4 are alkenes.

C_4H_{10} is an alkane.

Thus C_2H_2 with general formula C_nH_{2n-2} is an alkyne.

olga2289 [7]4 years ago
5 0
The answer is C2H2 because an alkyne compound consists of a series of unsaturated hydrocarbons with a triple bond. 
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3 0
3 years ago
The density of a 20.3 m ch3oh (methanol) solution is 0.858 g/ml. what is the molality of this solution? h2o is the solvent.
aliina [53]

The difference of molarity and molality is in the units:

Molarity is expressed in mol solute / L solution;

<span> while Molality is expressed in mol solute / kg solvent</span>

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6 0
4 years ago
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4 years ago
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3 0
4 years ago
A balloon is filled with 0.250 mole of air at 35°C. If the volume of the balloon is 6.23 liters, what is the absolute pressure o
ruslelena [56]

Answer:

102.807 kPa

Explanation:

There are some assumptions to be made in the answer. The air inside the balloon acts as an ideal gas at a given temperature conditions.

Using the combined ideal gas equation.

PV = nRT\\

P= absolute pressure of air inside the balloon.

V= volume of air inside the balloon (6.23 L= 6.23 * 10⁻³ m³)

n= moles of gas(air). (0.250 mol)

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T= Temperature in Kelvin

T= 35 + 273.15 = 308.15 K

So, P = \frac{nRT}{V}

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P= 102.807 * 10³ Pa

P= 102.807 kPa

3 0
3 years ago
Read 2 more answers
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