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
erma4kov [3.2K]
3 years ago
6

How many molecules are in 7 g of H2O

Chemistry
2 answers:
SOVA2 [1]3 years ago
8 0

Answer:

2.342*10^23

Explanation:

# of molecules = Moles * NA

# of molecules = (Mass in grams) / (Molar Mass) * NA

Molar Mass of H2O = 18g/mol

Avogadro's number(NA) = 6.022*10^23

Now,

# of molecules = (7g/18gmol)*(6.022*10^23) = 2.342 * 10^23

Luda [366]3 years ago
5 0

Answer:

0.38

Explanation:its right bc it is

You might be interested in
If you are given 96.0 grams of O2, how many grams of H20 are made?
julsineya [31]

Answer:

10.66  grams

Explanation:

8 0
3 years ago
Write a report on waves
Bad White [126]

Answer:

The epic emotional journey of a suburban African American family as they navigate love, forgiveness and coming together in the wake of a tragic loss.

Explanation:

hope thsi helps if so please brainliest

Merry Christmas

6 0
3 years ago
What is the relationship between melting/boiling point and intermolecular forces
sattari [20]
Boiling points are a measure of intermolecular forces. The intermolecular forces increase with increasing polarization of bonds. Boiling point increases with molecular weight, and with surface area.
8 0
3 years ago
What is the mass of 3.50 moles of Ba(NO2)2?
Fofino [41]

Answer:

  802.69 g

Explanation:

The molar mass of Barium nitrite is 229.34 g/mol, so 3.5 moles of it will have a mass of ...

  3.5 mol × 229.34 g/mol = 802.69 g

8 0
3 years ago
Find the mass of 250.0 mL of benzene. The density of benzene is 0.90 g/mL.
guapka [62]

Answer:

<h2>225 g</h2>

Explanation:

The mass of a substance when given the density and volume can be found by using the formula

mass = Density × volume

From the question we have

mass = 0.9 × 250

We have the final answer as

<h3>225 g</h3>

Hope this helps you

7 0
3 years ago
Other questions:
  • You are looking at the inside of a cell. explain how you can tell wether the cell is animal or plant
    11·1 answer
  • Your answer should contain numbers and l's b what value of l minimizes the volume in part<br> a.?
    15·1 answer
  • Why is ethanol a liquid at room temperature but ethane is a gas?
    14·1 answer
  • Separating Mixtures Checkpoint ( giving brainly )
    8·2 answers
  • onsider the reaction, which takes place at a certain elevated temperature CO(g)+NH3(g)⇌HCONH2(g), Kc=0.860 If a reaction vessel
    5·1 answer
  • The energy of a wave will remain constant if which of the following changes are made to it?A The wavelength is cut in half, and
    14·1 answer
  • Which of these, all of which include earth, most likely contains the most dark matter
    9·1 answer
  • This is timed!!! Please help!
    9·1 answer
  • If carbon has the electron configuration of (2,4) what would the electron configuration of the element to the right of it on the
    14·1 answer
  • Trộn 100ml dung dịch HCL 0.1M với 100ml dung dịch H2SO4 0,05
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!