Answer : The molarity of the new solution is, 4.069 M
Solution : Given,
Molarity of KOH solution = 4 M
Volume of KOH solution = 2.5 L
Volume of water added = 1.8 L
First we have to calculate the volume of new solution.
Volume of new solution = volume of KOH solution + volume of water added
Volume of new solution = 2.5 L + 1.8 L = 4.3 L
Now we have to calculate the molarity of the new solution.
Formula used :

where,
= molarity of KOH solution
= molarity of new solution
= volume of KOH solution
= volume of new solution
Now put all the given values in the above formula, we get the molarity of the new solution.


Therefore, the molarity of the new solution is, 4.069 M
Are produced along with a large quantitu of heat
To make food for the plant
Answer:
organisms in rain water and the number of organisms in pond water because the dependant variable never changes
Explanation:
because the dependant variable never changes
The 3 common gases that give off reactions are Hydrogen sulfide, Carbon monoxide, Nitrogen oxides.
<h3>What are off reactions</h3>
Off reactions are defined as chemical reactions that occurs when something burns or during combustion of materials which gives off energy.
Some gases that give off reaction are:
- Hydrogen sulfide
- Carbon monoxide
- Nitrogen oxides
Note that these gases are mostly poisonous.
Therefore, the 3 common gases that give off reactions are Hydrogen sulfide, Carbon monoxide, Nitrogen oxides.
Learn more about off reactions here:
brainly.com/question/16416932
#SPJ12