answer.
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
Travka
4 months ago
8

When benzene (c6h6) reacts with bromine (br2) bromobenzene(c6h5br) is obtained: c6h6 + br2 → c6h5br + hbr what is the theoretica

l yield of bromobenzene in this reaction when 30.0g of benzene reacts with 65.0 g of bromine?
b. if the actual yield of bromobenzene was 56.7 g what was the percentage yield?
Chemistry
1 answer:
Anarel [2.9K]4 months ago
3 0

Answer A): First, find the number of moles of benzene used:

30 g divided by the molar mass of benzene (78 g/mol) equals 0.384 moles


For bromine, calculate similarly:

65 g divided by its molar mass (159.8 g/mol) equals 0.406 moles


The balanced reaction shows a 1:1 molar ratio between bromine and benzene.


Calculate the molar mass of bromobenzene:

6 carbons × 12 + 5 hydrogens × 1 + bromine (79.90) = 156.9 g/mol


The mass of bromobenzene formed equals 156.9 g/mol × 0.3846 mol = 60.343 g


Thus, the theoretical yield is 60.34 g.


Answer B): The percent yield is found by dividing the actual yield by the theoretical yield and multiplying by 100%:


(56.7 g ÷ 60.343 g) × 100% = 93.96%


This means the reaction achieved a 93.96% yield, acknowledging that 100% yield is unattainable in chemical reactions.

You might be interested in
A person loses 2.70 lbs in two weeks how many grams did he lose?
VMariaS [2998]
He lost 1224.7 grams.
6 0
4 months ago
Read 2 more answers
Which statement best describes the direction of heat flow by conduction between two samples of the same material?
VMariaS [2998]

Response: 2. When molecules with different speeds collide, heat is transferred from the faster ones to the slower ones.

Clarification: I hope this was useful!:)

6 0
3 months ago
Read 2 more answers
Sodium combines with water to produce sodium hydroxide and hydrogen gas. Which word equation represents this violent reaction?
alisha [2963]

Response: sodium + water → sodium hydroxide + hydrogen

Clarification:

1) The initial part of the statement "sodium combines with water" indicates that these pure substances serve as the reactants.

Sodium belongs to the alkali metals (group 1: Li, Na, K, Rb, Cs, Fr).

A common characteristic of alkali metals is their reactive behavior with water, resulting in the formation of the respective hydroxide and hydrogen gas.

2) The following words, "to produce" suggest that what comes next represents the products of the reaction. In chemical equations, this is indicated by the arrow →

3) Finally, it specifies the products of the reaction: sodium hydroxide and hydrogen gas.

4) The word equation observes the sequence reactants → products, translates here as sodium + water → sodium hydroxide + hydrogen

5) Using chemical symbols and formats, this can be represented as:

Na(s) + H₂O (l) → NaOH(aq) + H₂(g).

5 0
3 months ago
Read 2 more answers
Other questions:
  • You've just solved a problem and the answer is the mass of an electron, me=9.11×10−31 kilograms. How would you enter this number
    5·1 answer
  • PLEASE HELP!!! The image represents the reaction between a certain number of molecules of N2 and H2.
    14·2 answers
  • A magnesium ion, Mg2+, with a charge of 3.2×10−19C and an oxide ion, O2−, with a charge of −3.2×10−19C, are separated by a dista
    6·1 answer
  • Lysine is an amino acid that is an essential part of nutrition but which is not synthesized by the human body. What is the molar
    7·2 answers
  • Identify some of the ways nuclear reaction equations differ from chemical reaction equations by matching each statement with the
    8·1 answer
  • Interpret: Since hot packs release heat, you might assume that cold packs release cold. Use the definition of endothermic to exp
    13·1 answer
  • Chlorine can bond with fluorine to form CIF. Chlorine can also bond with lithium to form LiCI Which compound will have a greater
    12·1 answer
  • Ice is lighter and floats in water because it is a crystalline structure in which each water molecule is bonded to a maximum of
    5·1 answer
  • Which type of bond will chromium atoms likely to form with other chromium atoms
    7·2 answers
  • In April 2010, the worst oil spill ever recorded occurred when an explosion and fire on the Deepwater Horizon offshore oil-drill
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!