1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Paladinen [302]
3 years ago
14

what is the percent yield of titanium (II) oxide if 20.0 grams of titanium (II) sulfide is reacted with water? The actual yield

of titanium (II) oxide obtained was 22.8 grams. what could have caused the percent yield to be so high
Chemistry
1 answer:
earnstyle [38]3 years ago
5 0

Answer : The percent yield of titanium (II) oxide is, 142.5 % and the impurities could have caused the percent yield to be so high.

Explanation : Given,

Mass of titanium(II) sulfide = 20.0 g

Molar mass of titanium(II) sulfide = 79.9 g/mole

Molar mass of titanium(II) oxide = 63.9 g/mole

First we have to calculate the moles of titanium(II) sulfide.

\text{ Moles of titanium(II) sulfide}=\frac{\text{ Mass of titanium(II) sulfide}}{\text{ Molar mass of titanium(II) sulfide}}=\frac{20.0g}{79.9g/mole}=0.2503moles

Now we have to calculate the moles of titanium(II) oxide.

The balanced chemical reaction is,

TiS+H_2O\rightarrow TiO+H_2S

From the reaction, we conclude that

As, 1 mole of titanium(II) sulfide react to give 1 mole of titanium(II) oxide

So, 0.2503 mole of titanium(II) sulfide react to give 0.2503 mole of titanium(II) oxide

Now we have to calculate the mass of titanium(II) oxide.

\text{ Mass of titanium(II) oxide}=\text{ Moles of titanium(II) oxide}\times \text{ Molar mass of titanium(II) oxide}

\text{ Mass of titanium(II) oxide}=(0.2503moles)\times (63.9g/mole)=15.99g

To calculate the percentage yield of titanium (II) oxide, we use the equation:

\%\text{ yield}=\frac{\text{Experimental yield}}{\text{Theoretical yield}}\times 100

Experimental yield of titanium (II) oxide = 22.8 g

Theoretical yield of titanium (II) oxide = 15.99 g

Putting values in above equation, we get:

\%\text{ yield of titanium (II) oxide}=\frac{22.8g}{15.99g}\times 100\\\\\% \text{yield of titanium (II) oxide}=142.5\%

Hence, the percent yield of titanium (II) oxide is, 142.5 %

If the percent yields is greater than 100% that means the product of the reaction contains impurities which cause its mass to be greater than it actually.

You might be interested in
Calculate the empirical formula of each of the following substances with the following compositions.
OleMash [197]

Explanation:

Note: Molar masses of elements can be found online or in the periodic table.

Moles of Magnesium

= 3.60g / (24.3g/mol) = 0.148mol.

Moles of Chlorine

= 10.65g / (35.45g/mol) = 0.300mol.

Mole ratio of Magnesium to Chlorine

= 0.148mol : 0.300mol = 1 : 2.

Hence we have the empirical formula MgCl2.

Moles of Lithium

= 9.1g / (6.94g/mol) = 1.311mol.

Moles of Oxygen

= 10.4g / (16g/mol) = 0.650mol.

Moles ratio of Lithium to Oxygen

= 1.311mol : 0.650mol = 2 : 1.

Hence we have the empirical formula Li2O.

7 0
2 years ago
How does chemical change affect the composition of matter
Sergio039 [100]
Beacuse it gets oxagin and changes ur wlecome

8 0
2 years ago
_____states that the physical and chemical properties of the elements are periodic within the sequence of their atomic numbers.
Novay_Z [31]
The answer is Periodic
4 0
3 years ago
Read 2 more answers
Which of the following is an example of electrical energy being converted to chemical energy?
marishachu [46]

The correct answer is option D, that is, a storage battery is charged using an electric current.  

The transformation of one form of energy into another, generally to transform the energy into more useful kind is known as energy conversion. The energy can neither be created nor be destroyed, it can only be transformed. The different forms of energy comprise light, heat, mechanical, electrical, sound, nuclear, and sound.  

In the given question, the charging of a storage battery using electric current is an example of electrical energy being converted into chemical energy.  


5 0
3 years ago
Read 2 more answers
How much eat is absorbed when 50.0g of water changes from 25.0 Celsius to 37.0 Celsius?
Firdavs [7]
27 I think beacuse if you subtract
5 0
3 years ago
Read 2 more answers
Other questions:
  • Most of an atom's volume is the space in which electrons move true or false
    10·1 answer
  • What mass of carbon monoxide must be burned to produce 175 kj of heat under standard state conditions?
    13·2 answers
  • 8. Ascorbic acid (Vitamin C) cannot be stored in the body, so it must be supplied in the diet. It is a C, H, O compound. If 7.75
    14·1 answer
  • How did the quantum mechanical model of the atom improve on Borh's atomic model?
    9·1 answer
  • KOH and LiOH are examples of (URGENT)
    12·2 answers
  • What is a periodic element that was named after Einstein?
    9·1 answer
  • What is the chemical formula for the name lithium fluoride?
    6·2 answers
  • How is the earth’s groundwater and surface water replenished? blank replenishes the earth’s groundwater and surface water.
    12·2 answers
  • Select the correct answer.
    9·2 answers
  • 3. In a neutral atom, this element has an atomic mass of 23 AMU and has 11 protons.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!