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levacccp [35]
3 years ago
6

Nitroglycerin (c3h5n3o9) is a powerful explosive. its decomposition may be represented by 4c3h5n3o9 → 6n2 12co2 10h2o o2 this re

action generates a large amount of heat and gaseous products. it is the sudden formation of these gases, together with their rapid expansion, that produces the explosion. (a) what is the maximum amount of o2 in grams that can be obtained from 4.50 × 102 g of nitroglycerin
Chemistry
2 answers:
professor190 [17]3 years ago
7 0
The balanced chemical reaction describing this decomposition is as follows:
<span>4c3h5n3o9 .............> 6N2 + 12CO2 +10H2O + O2

From the periodic table:
mass of oxygen = 16 grams
mass of nitrogen = 14 grams
mass of hydrogen = 1 gram
mass of carbon = 12 grams
Therefore:
mass of </span><span>C3H5N3O9 = 3(12) + 5(1) + 3(14) + 9(16) = 227 grams
mass of O2 = 2(16) = 32 grams

From the balanced chemical equation:
4(227) = 908 grams of </span>C3H5N3O9 produce 32 grams of O2. Therefore, to know the amount of oxygen produced from 4.5*10^2 grams <span>C3H5N3O9, all we need to do is cross multiplication as follows:
amount of oxygen = (4.5*10^2*32) / (908) = 15.859 grams</span>
N76 [4]3 years ago
4 0

Answer:

15.8528 grams of oxygen will be obtained.

Explanation:

4C_3H_5N_3O_9\rightarrow 6N_2+12CO_2+10H_2O+O_2

Mass of nitroglycerin = 4.50\times 10^{2} g

Moles of nitroglycerin:

\frac{4.50\times 10^{2} g}{227.08 g/mol}=1.9816 mol

According to reaction, 4 moles of nitroglycerin gives 1 mole of oxygen gas.

then 1.9816 mol of nitroglycerin will give:

\frac{1}{4}\times 1.9816=0.4954 moles of oxygen gas.

Mass of oxygen ;

0.4954 mol\times 32 g/mol=15.8528 g

15.8528 grams of oxygen will be obtained.

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g 1.000 atm of oxygen gas, placed in a container having a pinhole opening in its side, leaks from the container 2.14 times faste
Ivan

The question is incomplete, the complete question is;

1.000 atm of Oxygen gas, placed in a container having apinhole opening in its side. leaks from the container 2.14 timesfaster thatn 1.000 atm of an unknown gas placed in this sameapparatus. Which of the following species could be theunknown gas?

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Answer:

SF6

Explanation:

From Graham's law;

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Let the rate of diffusion of unknown base be R2

Let the molar mass of oxygen by M1

Let the molar mass of unknown gas be M2

Hence;

R1/R2 = √M2/M1

So;

2.14/1 = √M2/32

(2.14/1)^2 = M/32

M= (2.14/1)^2 × 32

M= 146.6

This is the molar mass of SF6 hence the answer above.

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3 years ago
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Sergeeva-Olga [200]

Answer:

100 mL is the volume of HCl needed to neutralize the 44.3 of Ba(OH)₂

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Volume of acid = (0.274 . 44.3) / 0.121 → 100

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*brings you good news*

The answer is D. 12 

Hope i will help you angain sometime :)

~~~~~SoraKeyblader~~~~~
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