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
aleksandr82 [10.1K]
3 years ago
8

How many moles of 0.225 M CaOH2 are present in 0.350 L of solution?

Chemistry
1 answer:
weeeeeb [17]3 years ago
7 0

Answer : The number of moles of solute Ca(OH)_2 is, 0.0788 moles.

Explanation : Given,

Molarity = 0.225 M

Volume of solution = 0.350 L

Formula used:

\text{Molarity}=\frac{\text{Moles of }Ca(OH)_2}{\text{Volume of solution (in L)}}

Now put all the given values in this formula, we get:

0.225M=\frac{\text{Moles of }Ca(OH)_2}{0.350L}

\text{Moles of }Ca(OH)_2=0.0788mol

Therefore, the number of moles of solute Ca(OH)_2 is, 0.0788 moles.

You might be interested in
Are the following solutions acidic, basic, ot neutral.
Slav-nsk [51]

Answer:

1) Basic

2) Basic

3) Acidic

Explanation:

pH of a solution is a measure of the H3O+ ions in the solution and hence reflects its acidity.

pH = -log[H3O+]

Solutions are classified as acidic, basic or neutral based on the pH range

-pH < 7, acidic

- pH = 7, neutral

- pH > 7, basic

1) [H3O+] = 2.5*10^-9M

pH = -log[H3O+]=-log[2.5*10^{-9}]=8.60

Since pH > 7, solution is basic

2)[OH-] = 1.6*10^-2M

pOH = -log[OH-]=-log[1.6*10^{-2}]=1.80

pH = 14 - pOH = 14 - 1.80 =12.2

Since pH > 7, solution is basic

3) [H3O+] = 7.9*10^-3M

pH = -log[H3O+]=-log[7.9*10^{-3}]=2.10

Since pH < 7, solution is acidic

6 0
3 years ago
What is significant about the temperature absolute zero?
Reptile [31]

Explanation:

The absolute temperature is the lowest possible temperature in the universe. At this temperature, all atoms become motionless and cease to move.

The value of the absolute zero is pegged at -273.16°C.

  • It is the lowest limit of the coldness of a body.
  • Nothing can be colder than a body at absolute temperature.
  • Many researches are underway to take advantage of this temperature value for scientific purpose.
  • Thermodynamically, all process stops at this temperature.
  • When a body is brought close a body at absolute zero, it can suffer cryogenic burn due to heat transfer.
4 0
3 years ago
Screw has very high efficiency.<br> a. True<br> b. False
NISA [10]
False the output force and input force is low because the formula is output force divided by input force. Just a note you are not doing much input force into the screw because you hold the screwdriver
5 0
3 years ago
Read 2 more answers
Use the following image to complete the matching exercise below. You will match the number from each white box in the image with
Marat540 [252]
Can you describe the image
7 0
3 years ago
What can a emerald be described as
aniked [119]

An emerald can be described as a precious gemstone that is commonly green. However, emeralds can be other colors. Emerald commonly describes a color, such as emerald green eyes.

3 0
3 years ago
Other questions:
  • Water and oxygen gas are the products of a chemical reaction.
    5·2 answers
  • When a drawing made with a black marker gets wet, the marker bleeds and more separates into several colors. What method of separ
    9·2 answers
  • Write structures for the three isomers of the aromatic hydrocarbon xylene, C6H4(CH3)2.
    5·1 answer
  • A cylinder is filled with 10.0L of gas and a piston is put into it. The initial pressure of the gas is measured to be 209.kPa. T
    5·1 answer
  • According to the law of conservation of mass, how much mercury was present in the mercury (II) oxide? *
    7·1 answer
  • It’s a test and only need 2 more problems!!!! Thank you and Appreciate it!!!
    12·1 answer
  • A bowling ball rests on the floor. The bowling ball is given a push.
    14·1 answer
  • What is the difference between theme and plot?
    7·2 answers
  • 9. In a neutralization reaction, an acid and a base react to produce a an oxide and water.
    11·1 answer
  • Consider each possible structure of carbon dioxide, c o 2. Determine whether the structure is correct and justify your decision.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!