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
Afina-wow [57]
3 years ago
9

Convert 22.5 grams H2O to moles​

Chemistry
2 answers:
TEA [102]3 years ago
5 0

Answer:

1.25mol

Explanation:

moles(n)=mass/Mr

Mr of H2O=(1*2)+16

                 =18

n=22.5/18

 =1.25 mol

kenny6666 [7]3 years ago
4 0

Answer:

18.01528

Explanation:

The answer is 18.01528.

You might be interested in
A quantity that had just a number
Mama L [17]

Answer:

sa

Explanation:

4 0
3 years ago
The molecular weight of NaCl is 58.44 grams/moles. How many grams of NaCl are found in a beaket with 100 ml of a 0.0050 M soluti
Viktor [21]

Answer:

The mass of NaCl is 0.029 grams

Explanation:

Step 1: Data given

Molecular weight of NaCl = 58.44 g/mol

Volume of solution = 100 mL = 0.100 L

Molarity = 0.0050 M

Step 2: Calculate moles NaCl

Moles NaCl = molarity * volume

Moles NaCl = 0.0050 M * 0.100 L

Moles NaCl = 0.00050 moles

Step 3: Calculate mass NaCl

Mass NaCl = moles NaCl * molar mass NaCl

Mass NaCl = 0.00050 moles * 58.44 g/mol

Mass NaCl = 0.029 grams

The mass of NaCl is 0.029 grams

4 0
3 years ago
The boiling point of chloroform is 61.7 C. The enthalapy of vaporization is 31.4 kj/mol. Caculate the entropy of vaporization. D
dedylja [7]

Answer:

Δ S = 93.8 J/mol-K

Explanation:

Given,

Boiling point of chloroform = 61.7 °C

                                             = 273 + 61.7 = 334.7 K.

Enthalapy of vapourization = 31.4 kJ/mol.

Using Gibbs free   energy equation

Δ G = Δ H - T (ΔS)

at equilibrium (when the liquid is boiling), Δ G = 0

so,  0 = ΔH - T (Δ S)

      T (Δ S) = Δ H

and ΔS = ΔH / T

Δ S = (31400 J/mol.) / 334.7 K

Δ S = 93.8 J/mol-K

6 0
3 years ago
How many bonds are broken in 2O2
nirvana33 [79]

Answer:

c5mvmifvidvj8dvj9r kf9,g

8 0
3 years ago
Is KNO a strong acid?
stira [4]

Answer:

First of all, it's KNO₃ not KNO.

Second, KNO₃ is neither an acid nor it is a base, infact, it is a salt and therefore it's neutral.

hope that helps...

3 0
2 years ago
Other questions:
  • It takes 338. kJ/mom to break a carbon-chlorine single bond. Calculate the maximum wavelength of light for which a carbon-chlori
    15·1 answer
  • The coinage metals (Group 1B) copper, silver, and gold have specific heats of 0.385, 0.233, and 0.129 J/g-K, respectively. Among
    13·2 answers
  • What was Aristotle’s theory of matter? Was it atomistic or formal?
    10·1 answer
  • Kepler was able to determine that the planets move slowest when they are _____.
    9·2 answers
  • Round to 4 significant figures.<br> 35.5450
    5·2 answers
  • What is the maximum volume of a 0.788 M CaCl2 solution that can be prepared using 85.3 g CaCl2?
    11·1 answer
  • Which statement about the Nobel gases is most reliable
    12·1 answer
  • A solution contains two isomers, n-propyl alcohol and isopropyl alcohol, at 25°C. The total vapor pressure is 38.6 torr. What ar
    9·1 answer
  • Count then plot the total number of atoms in the reactants to total atoms
    5·1 answer
  • PLS HELP! WILL MARK BRAINLIEST!!! 50 PTS
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!