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
qaws [65]
3 years ago
6

Calculate the number of molecules present in .20 moles of H2O

Chemistry
1 answer:
trasher [3.6K]3 years ago
4 0

Answer:

Number of moles =20

Number of molecules present = 20 multipled by avogadro's number.

You might be interested in
PLZ HELP!!!!
Greeley [361]
In oil and gas industry:
When crude oil get extracted from well, salt water and some other stuff needs to be removed before oil can be sued in the car


6 0
4 years ago
A 20-liter container contains 2. 0 moles of oxygen at a pressure of 92 kpa. The average kinetic energy of translation of oxygen
Elodia [21]

The average kinetic energy of translation of oxygen molecules in the gas is 5.05 × 10⁻²¹

The given data is

n = 2

v = 20

P = 92

K.E = 3 / 2 KbT

      = 3 / 2 PV / N

     = 3 / 2 Pv / nNa

K.E = 3 / 2 × 9 × 1.013 × 10⁵ × 20 × 10⁻³ / 2 × 6.022 × 10²³

K. E = 5.05 × 10⁻²¹ J

<h3>Average kinetic energy</h3>

The average kinetic energy (K) is equal to one half of the mass of each gas molecule times the RMS speed squared

Hence, the average kinetic energy is 5.05 × 10⁻²¹ J

Learn more about the average kinetic energy on

brainly.com/question/3249165

#SPJ4

7 0
1 year ago
Is it true or false I need help.
dsp73

Answer:

true

Explanation:

4 0
3 years ago
What is the correct way to write 1,550,000,000 in scientific notation?
mr_godi [17]

Answer: a

Explanation:

scientific notation is about how many places passed the decimial place you are moving. therefor in order to get  1,550,000,000 you would move the decimial from 1.55 over nine times to the right

4 0
4 years ago
Read 2 more answers
How many molecules are in 3.10*10^-3 g of C6H12O6
joja [24]
Molas mass C6H12O6 = 180.15 g/mol

1 mole C6H12O6 -------------- 180.15 g
?? molesC6H12O6 ------------ 3.10x10⁻³ g

3.10x10⁻³ x 1 / 180.15 => 0.00001720 moles

1 mole ------------------------- 6.02x10²³ molecules
0.00001720 moles ---------- ??

0.00001720 x (6.02x10²³) / 1 => 1.035x10¹⁹ molecules
6 0
3 years ago
Other questions:
  • How many valence electrons are in an atom of phosphorus? (atomic number 15)?
    12·2 answers
  • Which probably best indicates that a compound contains an ionic bond
    11·1 answer
  • How does the ionic radius and atomic radius of an element compare
    10·1 answer
  • Complete ionic,net and spectator ions for the following
    10·1 answer
  • If a cell has waste who is responsible for taking it out
    12·2 answers
  • If a gas at 25.0 °C occupies 3.60 liters at a pressure of 2.00 atm, what will be its volume at a pressure of 3.50 atm? *
    7·1 answer
  • Iron (III) oxide reacts with carbon to give iron and carbon
    12·1 answer
  • What is the molarity of a solution containing 72.9 grams of HCl in enough water to make
    8·1 answer
  • It supplies energy in an electric circuit ​
    8·2 answers
  • Which option is an isotope with 6 protons and 8 neutrons? (1 point)
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!