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
motikmotik
3 years ago
10

How many grams are there in 2.00 moles of copper (ii) oxide

Chemistry
1 answer:
tatuchka [14]3 years ago
7 0

Answer: 159 grams

Explanation:

Copper (ii) oxide has the chemical formula CuO.

Now given that:

Mass of CuO in grams = ? (let unknown value be Z)

Number of moles = 2.00 moles

Molar mass of CuO = ?

For the molar mass of CuO: Atomic mass of Copper = 63.5g ; Oxygen = 16g

= 63.5g + 16g

= 79.5 g/mol

Apply the formula:

Number of molecules = (mass in grams/molar mass)

2.00 moles = (Z / 79.5 g/mol)

Z = 79.5 g/mol x 2.00 moles

Z = 159g

Thus, there are 159 grams in 2.00 moles of copper (ii) oxide

You might be interested in
Which of these is an example of a physical change ?
Gre4nikov [31]
It's 1. Melting a substance. The rest are chemical changes
8 0
3 years ago
What is the name of the phase where stars live out most of their lives?
lisov135 [29]
The correct option is B. 
Stars live out most of their lives at MAIN SEQUENCE. Stars generally are divided into three major stages, these are:
1. Pro stars and pre-main sequence star
2. Main sequence  and giant star
3. Variable stars
Major stages in the life of a star can last for millions of years.

8 0
3 years ago
What is the mass number of an element with an atomic number 10 and 10 neutrons
Bogdan [553]

Answer:

Neon

Explanation:

8 0
2 years ago
Read 2 more answers
What’s the answer!?!!
EastWind [94]

Answer: generic material and protein coat. Have a great day

Explanation:

3 0
3 years ago
Rutherford, geiger, and marsden’s experiment demonstrated that the volume of the nucleus is roughly what fraction of the volume
trasher [3.6K]
Rutherford, Geiger and Marsden's experiment proved that every atom has a nucleus and that this nucleus is of positive charge and contains the most of the mass of the atom. 0.005% of the volume occupied by the electrons is the volume of the nucleus.
4 0
2 years ago
Other questions:
  • Which phrase describes a hypothesis? a. reviewing information related to the problem b. testing a factor, or variable, in an exp
    5·1 answer
  • Can you place the following elements in order of decreasing atomic size: selenium, chlorine, fluorine, rubidium, calcium, and su
    14·2 answers
  • A blue jay's small ,curved feet hepls it grip on branches.Which type of adption is this?
    8·1 answer
  • How are cholesterol and bile related? Thank you!
    15·1 answer
  • The average atomic mass recorded on the periodic table for krypton is 83.80 u. This indicates that the most abundant isotope of
    7·1 answer
  • If heat is released when water vapor what phase change Occurs
    11·2 answers
  • Whats the ansewr giving brainliest
    8·1 answer
  • How is bakelite made and what is it used for?
    6·1 answer
  • Please help me with these questions
    10·1 answer
  • Plzzz help pls How many liters are in 6.74 x 1023 particles of PbCl2?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!