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malfutka [58]
2 years ago
8

Using the following equation

Chemistry
2 answers:
Valentin [98]2 years ago
7 0
Thermal energy when solid, liquor , and gas combine
Reil [10]2 years ago
6 0

Answer : The mass of H_2O produced will be, 17 grams.

Explanation : Given,

Mass of C_2H_6 = 9.5 g

Mass of O_2 = 130 g

Molar mass of C_2H_6 = 30 g/mole

Molar mass of O_2 = 32 g/mole

Molar mass of H_2O = 18 g/mole

First we have to calculate the moles of C_2H_6 and O_2.

\text{Moles of }C_2H_6=\frac{\text{Mass of }C_2H_6}{\text{Molar mass of }C_2H_6}=\frac{9.5g}{30g/mole}=0.317moles

\text{Moles of }O_2=\frac{\text{Mass of }O_2}{\text{Molar mass of }O_2}=\frac{130g}{32g/mole}=4.06moles

Now we have to calculate the limiting and excess reagent.

The balanced chemical reaction is,

2C_2H_6+7O_2\rightarrow 4CO_2+6H_2O

From the balanced reaction we conclude that

As, 2 moles of C_2H_6 react with 7 mole of O_2

So, 0.317 moles of C_2H_6 react with \frac{7}{2}\times 0.317=1.109 moles of O_2

From this we conclude that, O_2 is an excess reagent because the given moles are greater than the required moles and C_2H_6 is a limiting reagent and it limits the formation of product.

Now we have to calculate the moles of H_2O.

As, 2 moles of C_2H_6 react to give 6 moles of H_2O

So, 0.317 moles of C_2H_6 react to give \frac{6}{2}\times 0.317=0.951 moles of H_2O

Now we have to calculate the mass of H_2O.

\text{Mass of }H_2O=\text{Moles of }H_2O\times \text{Molar mass of }H_2O

\text{Mass of }H_2O=(0.951mole)\times (18g/mole)=17.118g\approx 17g

Therefore, the mass of H_2O produced will be, 17 grams.

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attashe74 [19]

Answer:

The temperature and pressure below which a supercritical fluid exists.

Explanation:

Critical point is a region on the phase diagram where fluid phases (liquids and gases) have the equal density.

This is caused by increased temperature and pressure of the fluid particles in a confided container. Supercritical fluids exist in a state above critical point.

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Explanation:

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What is the number of oxygen atoms in 32grams of the gas​
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One mole of oxygen gas, which has the formula O2, has a mass of 32 g and contains 6.02 X 1023 molecules of oxygen but 12.04 X 1023 (2 X 6.02 X 1023) atoms, because each molecule of oxygen contains two oxygen atoms.

7 0
2 years ago
What is the appropriate chemical formula for Iron(III) Sulfate? Sulfate is SO_4^2 Fe3SO4 O a . Fe2(SO4)3 O b. O c. Fe2SO4 O d. F
AnnyKZ [126]

<u>Answer:</u> The chemical formula of Iron (III) sulfate is Fe_2(SO_4)_3

<u>Explanation:</u>

Iron is the 26th element of periodic table having electronic configuration of [Ar]3d^64s^2.

To form Fe^{3+} ion, this element will loose 3 electrons.

Sulfate ion is a polyatomic ion having chemical formula of SO_4^{2-}

By criss-cross method, the oxidation state of the ions gets exchanged and they form the subscripts of the other ions. This results in the formation of a neutral compound.

So, the chemical formula for Iron (III) sulfate is Fe_2(SO_4)_3

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3 years ago
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