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
Rudik [331]
4 years ago
5

Use the equation 2Cu+O2 —> 2CuO to find how many grams of copper react to form 3.64 mol CuO.

Chemistry
1 answer:
mylen [45]4 years ago
5 0
<h3>Answer:</h3>

231.31 g

<h3>Explanation:</h3>

<u>We are given;</u>

  • The mass of CuO produced as 3.64 moles
  • The equation fro the reaction as

2Cu+O2 → 2CuO

We are required to determine the mass of copper that would react.

  • In this case, we are going to use the concept on mole ratio.
  • From the balanced equation,

2 moles of Cu reacts with 1 mole of oxygen to yield 2 moles of CuO

  • Therefore, the mole ratio of copper (Cu) to CuO is 2: 2 or 1 : 1 (simplified)
  • Therefore;

Moles of Cu = moles of CuO

Thus, moles of Cu = 3.64 moles

But, Mass = Number of moles × atomic mass

Atomic mass of copper = 63.546

Thus,

Mass of Cu = 3.64 moles × 63.546 g/mol

                   = 231.31 g

Thus, 231.31 g of copper will react to produce 3.64 moles of CuO

You might be interested in
Description
adoni [48]
Wait what I am not understanding the question? comment on this and explain and i can help 

3 0
3 years ago
Classify the following reaction: When dissolved sodium chloride reacts with dissolved silver nitrate in water, aqueous sodium ni
Gnesinka [82]

Answer:

A

Explanation:

8 0
4 years ago
Nacl , or halite, dissolves in water. which type of bond is most abundant which allows it to dissolve?
Hitman42 [59]
Intermolecular bonding:
Water is a polar molecule exhibit dispersion forces and hydrogen bonding
Salt is a polar molecule exhibit dispersion forces and dipole dipole bonding

Same bonding capacity therefore similar bonding capacity, therefore salt able to dissolves in water
3 0
3 years ago
An unknown substance has the composition of 77.87% c, 11.76% h and 10.37% o. the compound has a molar mass of 154.25 g/mole. wha
frutty [35]
We need to first calculate the empirical formula. Empirical formula is the simplest ratio of whole numbers of components in a compound,
Mass percentages have been given. We need to then calculate for 100 g of the compound 
                               C                     H                           O
mass                    77.87 g              11.76 g                 <span>10.37 g
number of moles  77.87/12            11.76/1                 10.37/16
moles                  = 6.48                  = 11.76                 =0.648
divide by least number of moles 
                              6.48/0.648       11.76/0.648            0.648/0.648
                              = 10                 =18.1                      = 1
rounded off
C - 10 , H - 18 and O - 1
empirical formula - C</span>₁₀H₁₈O
mass of empirical unit = 12 x 10 + 1x 18 + 16 = 120 + 18 + 16 = 154 
number of empirical units = molecular mass / mass of one empirical unit 
                                         = 154.25 / 154 = 1.00 
Therefore molecular formula = C₁₀H₁₈O
6 0
3 years ago
How does the type of chemical bonds present in a substance affect the substances properties?
SCORPION-xisa [38]
Once a chemical bond is formed, the atoms are rearranged to form a stronger bond, affecting the hardness, malleability, etc. The stronger the bond, the easier a substance will break, or, if its a liquid, it will resist seperation.
8 0
3 years ago
Other questions:
  • What is the momentum of a 50-kilogram ice skater gliding across the ice at a speed of 5 m/s
    15·1 answer
  • What are at least two things that atoms/molecules must do in order to react in a chemical reaction ? Think similar to legos
    14·2 answers
  • Which of the following elements has the lowest electronegativity? A) Xe B) Rb C) I D) Cl
    6·1 answer
  • Boiling and evaporation aren't the same. Can you explain the difference????? ☺
    5·2 answers
  • Which phrase describes the charge and mass of a neutron? 1. a charge of +1 and no mass 2. a charge of +1 and an approximate mass
    8·2 answers
  • 2. Atoms of 160, 170, and 180 have the same number of
    5·1 answer
  • Read the information about the halogen family.
    9·1 answer
  • Brainliest is you answer quick!!!
    15·2 answers
  • What is the phase of water at 1.0 atm and 50°C?
    12·1 answer
  • What is the percent nitrogen in NaNO3?<br> 56.47%<br> 27.04%<br> 16.48%<br> 14.01%
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!