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shtirl [24]
2 years ago
14

To identify a diatomic gas (X2), a researcher carried out the following experiment: She weighed an empty 3.6-L bulb, then filled

it with the gas at 2.00 atm and 24.0 ∘C and weighed it again. The difference in mass was 8.3 g . Identify the gas.
Chemistry
1 answer:
aleksandrvk [35]2 years ago
5 0

Answer:

The gas was N₂

Explanation:

V = 3.6L

P = 2.0 atm

T = 24.0°C = 297K

R = 0.0821 L.atm/K.mol

m = 8.3g

M = molar mass = ?

Using ideal gas equation;

PV = nRT

n = no. Of moles = mass / molar mass

n = m/M

PV = m/M * RT

M = mRT / PV

M = (8.3*0.0821*297) / (2.0*3.6)

M = 28.10

Since X is a diatomic molecule

M = 28.10 / 2 = 14.05 g/mol

M = Nitrogen

X = N₂

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aleksandrvk [35]

Answer:

1.5 moles of Fe produced.

Explanation:

Given data:

Moles of FeO react = 1.50 mol

Moles of iron produced = ?

Solution:

Chemical equation:

FeO + CO       →       Fe + CO₂

Now we will compare the moles of ironoxide with iron.

                           FeO          :           Fe

                              1             :             1

                             1.5           :           1.5

Thus from 1.5 moles of FeO 1.5 moles of Fe are produced.                                    

5 0
3 years ago
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Sidana [21]

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Explanation:

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Bicarbonate however can corrode certain metals and painted surfaces leaving your preparation area encrusted and grimy.

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The answer to the above is true the bicarbonate mixture can help save time and few routine.

3 0
3 years ago
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asambeis [7]

The answer is bimass power plant.

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ASHA 777 [7]
Although a scientific theories will support and wildly excepted, what might cause of the change?

the answer would be A, New Evidence.
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sergejj [24]

When you see a long dash joining two elements in the structural formula of a chemical molecule you can assume that the chemical bonds in the compound are simple bonds.

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8 0
3 years ago
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