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3 years ago

What is the theoretical yield of so3 produced by the quantities described in part a? express your answer numerically in grams?

1 answer:

8 0

Sulfur reacts with oxygen to yield SO3 as shown in the equation below;
2S(g)+ 3O2(g) = 2SO3(g)
From part A 7.49 g of S were used.
The atomic mass of sulfur is 32.06 g/mol
Hence, the number of moles of sulfur used
7.49 / 32.06 = 0.2336 moles
The mole ratio of S : SO3 is 1:1
Thus the mass of SO3 will be ( 1 mol of SO3= 80.06 g)
0.2336 moles × 80.06 = 18.7 g

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Interpret the equations in terms of particles moles and mass

pickupchik [31]

The equations in terms of particles moles and mass

a. 2PbS +3O2 = 2PbO +2SO2

b. 4HCl +O2 = 2H2O + 2Cl2

a) 2 Molecules of Pbs + 3 molecules of O2 = 2 Molecules of PbO + 2 molecules of SO2

2 Moles of PbS + 3 Moles of O2 = 2 moles of PbO + 2 Moles of SO2

478.6 grams of PbS+ 48 grams of 02 = 446.4 grams + 128 grams SO2

b). 4 molecules of HCl + 1 molecule of oxygen = 2 molecules of water +2 molecules pf Cl2

4 mole of HCl + 1 mole of oxygen = 2 mole of water + 2 moles of Cl2

146.4 grams of HCl + 31.8 grams = 36 grams of H20 + 159.8 grams of Cl2.

Explanation:

Calculation of:

particles =?

moles =?

mass =?

Equation given:

a) 2PbS +3O2 = 2PbO +2SO2

2 Molecules of Pbs + 3 molecules of O2 = 2 Molecules of PbO + 2 molecules of SO2

2 Moles of PbS + 3 Moles of O2 = 2 moles of PbO + 2 Moles of SO2

Mass of the reactant and product is calculated as:

number of moles x atomic mass

so,

atomic mass of PbS =239.3 grams/mole

mass = 2 x 239.3

= 478.6 grams

atomic mass of O2 = 16 grams/mole

mass = 3 x 16

= 48 grams

atomic mass of PbO = 223.2 grams/mole

mass = 2 x 223.2

= 446.4 grams

atomic mass of SO2 = 64 grams/mole

mass = 2 x 64

= 128 grams

b) Calculation of:

particles =?

moles =?

mass =?

Equation given:

4HCl +O2 = 2H2O + 2Cl2

4 molecules of HCl + 1 molecule of oxygen = 2 molecules of water +2 molecules pf Cl2

4 mole of HCl + 1 mole of oxygen = 2 mole of water + 2 moles of Cl2

To calculate mass, formula used is

mass = number of moles x atomic mass

atomic mass of HCl =36.46 gram/mole

mass = 4 x 36.46 = 146.4 grams

atomic mass of oxygen

mass = 2x 15.9 = 31.8 grams

atomic mass of water = 18 grams,mole

mass = 2 x 18 = 36 grams

atomic mass of Cl2 = 79.90 grams/mole

mass = 2 x 79.90 = 159.8 grams

5 0

3 years ago

Consider the reaction of cyclohexanol and an acid catalyst to obtain cyclohexene.

amid [387]

Answer : The percent yield of the reaction is, 86.5 %

Solution : Given,

Mass of Cyclohexanol = 3.1 g

Molar mass of Cyclohexanol = 100.16 g/mole

Molar mass of Cyclohexene = 82.14 g/mole

First we have to calculate the moles of Cyclohexanol.

$\text{ Moles of Cyclohexanol }=\frac{\text{ Mass of Cyclohexanol }}{\text{ Molar mass of Cyclohexanol }}=\frac{3.1g}{100.16g/mole}=0.03095moles$

Now we have to calculate the moles of Cyclohexene.

The balanced chemical reaction is,

$Cyclohexanol\rightarrow Cyclohexene$

From the reaction, we conclude that

As, 1 mole of Cyclohexanol react to give 1 mole of Cyclohexene

So, 0.03095 mole of Cyclohexanol react to give 0.03095 mole of Cyclohexene

Now we have to calculate the mass of Cyclohexene.

$\text{ Mass of Cyclohexene}=\text{ Moles of Cyclohexene}\times \text{ Molar mass of Cyclohexene}$

$\text{ Mass of Cyclohexene}=(0.03095moles)\times (82.14g/mole)=2.542g$

Theoretical yield of Cyclohexene = 2.542 g

Experimental yield of Cyclohexene = 2.2 g

Now we have to calculate the percent yield of reaction.

$\% \text{ yield of reaction}=\frac{\text{ Experimental yield of Cyclohexene}}{\text{ Theretical yield of Cyclohexene}}\times 100$

$\% \text{ yield of reaction}=\frac{2.2g}{2.542g}\times 100=86.5\%$

Therefore, the percent yield of the reaction is, 86.5 %

5 0

3 years ago

The diagonals of a rhombus are 6 and 8. The area of the rhombus is 20 24 48

Serhud [2]

Answer:

= 24 square units

Explanation:

The area of a rhombus is given by the formula;

Area = pq/2

Where p and q are the diagonals of the rhombus.

In this case; p = 6 and q = 8

Therefore;

Area = (6×8)/2

= 24 square units

6 0

3 years ago

Read 2 more answers

What type of bond exists between Na and N

Olegator [25]

Na is a metal

N is a nonmetal

thus, they form an ionic bond, where electrons are transferred from the metal, to the nonmetal

6 0

2 years ago

Some types of organisms can reproduce either sexually or asexually. If environmental conditions forced a population of these org

DIA [1.3K]

The genetic variation would decrease or stay the same. the offspring of the organisms that are repopulating with mate with each other because those are the only same organisms around ( low key gross but it's true)

3 0

3 years ago