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
Vesna [10]
3 years ago
8

The molar mass of water (H2O) is 18. 0 g/mol. A sample of water has a mass of 18. 0 g. How many moles of water are contained in

this sample? 1. 00 18. 0 36. 0 324.
Chemistry
1 answer:
sashaice [31]3 years ago
8 0

1 mole of water is contained in a sample of water that has a mass of 18.0 g.

HOW TO CALCULATE NUMBER OF MOLES:

The number of moles of a substance can be calculated by dividing the mass of that substance by its molar mass.

no. of moles = mass ÷ molar mass

According to this question, a sample of water has a mass of 18.0g. The number of moles is calculated as follows:

no. of moles of H2O = 18.0g ÷ 18g/mol

no. of moles of H2O = 1mol

Therefore, 1 mole of water is contained in a sample of water that has a mass of 18.0 g.

Learn more about mole calculations at: brainly.com/question/8101390?referrer=searchResults

You might be interested in
Near a volcano you would find?
Genrish500 [490]

Answer: Could you be more specific?

5 0
3 years ago
Determine the freezing point of a solution which contains 0.31 mol of sucrose in 175 g of water. kf = 1.86ï°c/m
barxatty [35]
Freezing point depression is a colligative property.

The formula that rules it is:

ΔT f = Kf * m

Where m is the molality of the solution => m = moles of solute / Kg of solvent

=> m = 0.31 mol / 0.175 kg = 1.771 m

And kf = 1.86 °C/m

=> ΔTf = 1.771 m * 1.86 °C / m = 3.3 °C

 => Freezing point of the solution = normal freezing point of water - 3.3 °C = 0 - 3.3°C = - 3.3°C.

Answer: -3.3 °C


8 0
4 years ago
Someone help me,
SashulF [63]

Answer:You can get the valence electrons in an atom's electronic arrangement by consulting the periodic table:

Explanation:

The Group 1 atoms have 1 valence electron.

The Group 2 atoms have 2 valence electrons.

The Group 3 atoms have 3 valence electrons.

The Group 4 atoms have 4 valence electrons.

6 0
3 years ago
Read 2 more answers
How many protons are in an atom of oxygen?<br><br><br> 6<br><br> 8<br><br> 16<br><br> 24
Monica [59]

Answer:

8 Protons

Explanation:

4 0
3 years ago
Who wants to play truth or dare
natima [27]

Iam willing to play truth and dare

Explanation:

because I love to play truth and dare

6 0
3 years ago
Read 2 more answers
Other questions:
  • Draw Lewis structures for the following molecules. Clearly label each center atom, then identify the molecular geometry for each
    11·1 answer
  • Calculate the volume of 817.5g of CH4 at STP.
    12·1 answer
  • If the pressure of a gas sample is quadrupled and the absolute temperature is doubled, by what factor does the volume of the sam
    5·1 answer
  • Consider the point on the plot where 10.0 g of NaOH have been added. What amount of NaOH, in moles, has been added? 0.308 mol Fe
    15·1 answer
  • How can a mixture of salt water be separated into salt and water
    5·1 answer
  • Be sure to answer all parts. Sulfonation of benzene has the following mechanism: (1) 2 H2SO4 ⇌ H3O+ + HSO4− + SO3 [fast] (2) SO3
    13·1 answer
  • Explain how muscle cells, blood cells and small intestine cells work together to keep the body moving.
    8·1 answer
  • 1. Calculate the pH if the [H3O+] = 6.29 x 10-2 M.
    14·1 answer
  • A new solution you came up with that will help with water pollution
    5·1 answer
  • Give a reason for each of the following laboratory practices:
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!