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aliina [53]
3 years ago
11

Gasoline is a molecule wich consist of

Chemistry
1 answer:
lyudmila [28]3 years ago
5 0

Gasoline is made up of almost entirely of hydrocarbons. Hydrocarbons is a molecule made up of carbon and hydrogen. Some of the compunds present in gasoline also contain small amounts of other elements, including sulfur, nitrogen, and oxygen.

Hope this helps!!!

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5. What mass of aluminum is produced by the decomposition of 6.50<br> kg of aluminum oxide?
aleksandr82 [10.1K]

Answer:  3.44 kg

Explanation:   Formula of Aluminium oxide is   Al2O3

Molar mass M = 2·26.98 + 3·16 = 101.96 g/mol

m-% of Al is 2·26.98 / 101.96 = 52.92 % = 0.5292

Mass of Al in Aluminium oxide is 0.5292 · 6.50 kg

4 0
3 years ago
When aluminum is placed in concentrated hydrochloric acid, hydrogen gas is produced.
KatRina [158]

Answer : The mass of aluminium (Al) is 0.413 g

Solution : Given,

Volume of H_{2}(g) at STP = 513 ml = 0.513 L           ( 1 L = 1000 ml )

Molar mass of aluminium = 26.98 g/mole

First we have to calculate the moles of H_{2}(g).

At STP,    

1 mole occupies 22.4 L volume

now, 0.513 L gives \frac{1mole\times0.513L}{22.4L} moles of H_{2}(g)

The moles of H_{2}(g) = 0.0229 moles

The Net balanced chemical reaction is,

2Al(s)+6HCl(aq)\rightarrow 2AlCl_3(aq)+3H_2(g)

From the balanced chemical reaction, we conclude that

2 moles of Aluminium (Al) produces 3 moles of hydrogen gas

Now the number of moles of aluminium required in 0.0229 moles of hydrogen gas = \frac{2moles\times 0.0229moles}{3moles} = 0.0153 moles

Now we have to calculate the mass of aluminium.

Mass of aluminium = number of moles × Molar mass = 0.0153 moles × 26.98 g/mole = 0.413 g

The mass of aluminium required is 0.413 g.

7 0
3 years ago
Discuss the unique properties of carbon as a group 4a element
zhuklara [117]

Answer:

Carbon is dull, have a low density, and are poor conductors of heat.

Explanation:

Carbon is a non-metal, therefore bearing properties of a non-metal element.

7 0
3 years ago
#71 what is the molar mass of fungal lactate
rewona [7]
MCu: 63,5 g/mol

4 × mCu = 63,5×4 = 254 g

254g ------ 0,39%
Xg ---------- 100%
X = (254×100)/0,39
X = 65128,2 g/ mol <<<< molar mass

3 0
3 years ago
Measure out 2.87 moles of sodium chloride (Nacl) into a clean dry cup. ​
Anettt [7]

Answer: weigh is m = n × M = 2.87 mol × 58.44 g/mol

Explanation: mass = amount of substance × molar mass

M((NaCl) = 22.99 +35.45

6 0
3 years ago
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