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lys-0071 [83]
3 years ago
14

calculate the amount of hydrogen sulphide that would be liberated by the action of sulphuric acid on 4.4 gram of ferrous sulphid

e. (Fe=56;S=32)​
Chemistry
1 answer:
zaharov [31]3 years ago
7 0

You will get iron sulfate and hydrogen sulfide gas (a.k.a. rotten egg gas).

FeS + H2SO4 = FeSO4 + H2S(g)

Change in Free Energy: ΔG(20C) = -66.6kJ (negative, so the reaction runs)

Change in Enthalpy: ΔH(20C) = -37.3kJ (negative, so the reaction is exothermic)

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The standard temperature and pressure of gases are OK and 1 atm, respectively. (T/F)
babymother [125]

Answer:

Explanation:

0 degrees kelvin is mighty cold. It should be 0 degrees Celsius.

The answer is false.

8 0
4 years ago
Please help me!! I have been stuck on this question for an hour
Gekata [30.6K]

If a fishbowl is placed in front of a sunny window the temperature will rise depending on how much thermal energy and radiant light is outside and making its way in through the window.

8 0
3 years ago
Why is helium nucleus containing no neutrons is likely to be unstable
jolli1 [7]
<span>A Helium nucleus is likely to be unstable if it has no neutrons because the remaining protons will repel electromagnetically and basically cause the atom to fall apart. The neutrons could have helped in holding everything together, and not make the protons repel.</span>
8 0
4 years ago
When an object floats in water, it displaces a volume of water that has a weight equal to the weight of the object. If a ship ha
swat32

The amount of seawater that will be displaced would be 1.3274 x 10^5  ft^3

<h3>Density and volume</h3>

Density = mass/volume.

Since a floating object displaces its own weight, a 4247 tons ship will also displace the same amount of water.

4247 tons of seawater = 3.8528 x 10^9 g

volume of 3.8528 x 10^9 g seawater = mass/density = 3.8528 x 10^9 g/1.025 = 3758829268.29 cubic centimeter.

3758829268.29 cm^3 = 132741.80 ft^3 or 1.3274 x 10^5  ft^3

More on density can be found here: brainly.com/question/15164682

#SPJ1

6 0
3 years ago
The second reaction in the formation of sulfuric acid occurs slowly.
rjkz [21]

<u>Answer:</u> The correct option is NO_2(g)

<u>Explanation:</u>

A catalyst is defined as the chemical species that increases the reaction rate but does not participate in it and is left behind after the completion.

A homogeneous catalyst is one that is present in the same phase as the reactants and products.

A heterogeneous catalyst is one that is present in different phase as that of reactants and products.

For the given chemical reaction:

2SO_2(g)+O_2(g)\rightarrow 2SO_3(g)

As all the reactants and products are in gaseous state so, the homogeneous catalyst must also be in the gaseous state only.

Hence, the correct option is NO_2(g)

5 0
3 years ago
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