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
mars1129 [50]
3 years ago
6

How many molecules are there in 39 grams of water

Chemistry
2 answers:
choli [55]3 years ago
8 0

Answer:

39 g H2O contains 1.3 ×1024molecules H2O.

Explanation:

yaroslaw [1]3 years ago
6 0

Answer:

I think its 117

Explanation:

H20

2*39 (hydrogens)

78

78+39(oxygens)

117

You might be interested in
An air mattress is filled with 16.5 moles of air. The air inside the mattress has a temperature of 295 K and a gauge pressure of
postnew [5]
PV=nRT
3.5×X=16.5×0.082×295
X= 114 L
The volume of the air mattress is 114 liters.
7 0
3 years ago
Read 2 more answers
Hexane is a chain organic compound that has the formula C6H14. What type of organic compound is hexane?
jeka94

Answer:

2-Methylpentane is a branched-chain alkane with the molecular formula C6H14. It is a structural isomer of hexane composed of a methyl group bonded to the second carbon atom in a pentane chain.

5 0
3 years ago
Read 2 more answers
What will be the volume occupied by 2.5 moles of nitrogen gas exerting 1.75 atm of pressure at 475K?
Marina86 [1]

Answer:

THE VOLUME OF THE NITROGEN GAS AT 2.5  MOLES , 1.75 ATM AND 475 K IS 55.64 L

Explanation:

Using the ideal gas equation

PV = nRT

P = 1.75 atm

n = 2.5 moles

T = 475 K

R = 0.082 L atm/mol K

V = unknown

Substituting the variables into the equation we have:

V = nRT / P

V = 2.5 * 0.082 * 475 / 1.75

V = 97.375 / 1.75

V = 55.64 L

The volume of the 2.5 moles of nitrogen gas exerted by 1.75 atm at 475 K is 55.64 L

6 0
3 years ago
In our simulation what did the σ (sigma) stand for?
soldier1979 [14.2K]

Answer:

C -The atomic radius

Explanation:

I took the test :)

6 0
3 years ago
What is the percent of copper in CuS?
bonufazy [111]

Answer:

Element Symbol Mass Percent

Cuprum Cu 66.464%

Sulfur S 33.537%

Explanation:

I got this out of my module, sorry if it's wrong but i am pretty sure 97% this is correct!

7 0
3 years ago
Other questions:
  • Calculate the number of moles in 456 g of lead, Pb
    10·1 answer
  • 3. A tea kettle holds about<br> of water.<br> 2 mL<br> 200 mL<br> 2L<br> 200 L
    8·2 answers
  • Compounds with very high vapor pressures must have very minimal intermolecular forces true or false
    14·1 answer
  • Calculate the molarity of the solution.
    5·2 answers
  • If the detergent requires using 0.61 kg detergent per load of laundry, determine what percentage (by mass) of the detergent shou
    7·1 answer
  • 20950 joules of heat are added to a container with 400 g of water. how much does the temperature change??? Show work and formula
    10·1 answer
  • Help help help help help<br> What is an action your citizens can take to prevent water waste?
    7·1 answer
  • Explain why seeing a gas doesn not always indicate that there was a chemical change. ​
    7·1 answer
  • The diagram below shows a food web in a woodland.
    5·1 answer
  • Which of the following is TRUE about a physical change to a substance?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!