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
Sophie [7]
3 years ago
15

Antacid has a pH of 11. What does that tell you about its concentration of hydrogen ions? What does that tell you about its conc

entration of hydroxide ions?
Chemistry
1 answer:
MAVERICK [17]3 years ago
3 0

Answer: The concentration of hydrogen ions is 10^{-11}M and the concentration of hydroxide ions is 10^{-3}M. Thus the concentration of hydroxide ions is more than the concentration of hydrogen ions.

Explanation:

pH or pOH is the measure of acidity or alkalinity of a solution.

pH is calculated by taking negative logarithm of hydrogen ion concentration.  

pH=-\log [H^+]

pOH=-\log[OH^-]

Putting in the values:

11=-\log[H^+]

[H^+]=10^{-11}M

pH+pOH=14

pOH=14-11=3

3=-log[OH^-]

[OH^-]=10^{-3}M

Thus the concentration of hydroxide ions is more than the concentration of hydrogen ions.

You might be interested in
Which environmental changes occur fastest? oil spill changing seasons global warming pond succession Previous hurry plzz
ser-zykov [4K]
I’m not a 100% shure but I would personally say OIL SPILLS.
6 0
3 years ago
g The boiling of water is a Question 4 options: chemical and physical damage chemical change because a gas (steam) is given off
Strike441 [17]

Answer:

physical change because the gaseous water is chemically the same as the liquid

Explanation:

Matter can be defined as anything that has mass and occupies space. Any physical object that is found on earth is typically composed of matter. Matter are known to be made up of atoms and as a result has the property of existing in states.

Generally, matter exists in three (3) distinct or classical phases and these are; solid, liquid and gas.

A physical change can be defined as a type of change that only affects the physical form of a chemical substance (matter) without having any effect on its chemical properties. Thus, a physical change would only affect the physical appearance and properties of a chemical substance (matter) but not its chemical properties.

This ultimately implies that, a physical change result in a change of matter from one form or phase (liquid, solid or gas) to another without a corresponding change in chemical composition.

Hence, the boiling of water is considered to be a physical change because the gaseous water is chemically the same as the liquid i.e there isn't any changes in chemical composition of water when boiling.

8 0
3 years ago
I need to make up an experiment !! Please help
katen-ka-za [31]

Question: Baking a Cake Without Flour.

Hypothesis: I think that when I remove the flour from the standard cake recipe, I'll end up with a flat but tasty cake.

Procedure: I baked two cakes during my experiment. For my control, I baked a cake following a normal recipe. I used the Double Fudge Cake recipe on page 292 of the Betty Crocker Cookbook. For my experimental cake, I followed the same recipe but left out the flour. I first obtained a 2-quart mixing bowl.  

Results: My control cake, which I cooked for 25 minutes, measured 4 cm high.  Eight out of ten tasters that I picked at random from the class found it to be an acceptable dessert. After 25 minutes of baking, my experimental cake was 1.5 cm high and all ten tasters refused to eat it because it was burnt to a crisp.

What did I learn?/Conclusion: Since the experimental cake burned, my results did not support my hypothesis.  I think that the cake burned because it had less mass, but cooked for the same amount of time.  I propose that the baking time be shortened in subsequent trials.

-

I hope this helped :))

7 0
3 years ago
The table shows the volumes of different samples of liquid? Which sample has the greatest DENSITY.
arlik [135]

Answer:

Maybe B

Explanation:

4 0
4 years ago
Read 2 more answers
What are the products of photosynthesis?
gtnhenbr [62]

Answer:

Glucose also called(Energy)

4 0
4 years ago
Other questions:
  • What is the molar mass of sn(oh)4
    12·1 answer
  • What acid has a dissociation constant of 4.57x10^-3
    14·1 answer
  • Molarity tells us ___.
    14·1 answer
  • One of your classmates is having trouble understanding ions. He explains the formation of a cation like this:
    10·1 answer
  • Tim’s father bought a bicycle for Tim. To avoid head injury during a crash, his father also bought a child-size helmet. The helm
    11·1 answer
  • An ideal gas cannot exist outside of ideal gas conditions<br><br> true or false ?
    7·1 answer
  • Liquid molecules have a:
    10·1 answer
  • What is the slope of 8,-4 ad 0,0
    11·1 answer
  • Uranium hexafluoride is a solid at room temperature, but it boils at 56C. Determine the density of uranium hexafluoride at 60.C
    7·1 answer
  • in a fatty acid, the hydrogen atoms are of the double bond, which produces a kink in the carbon chain. in a fatty acid, the hydr
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!