What is the concentration of K+K+ ions in a 0.025 M M K2CO3K2CO3 solution assuming complete dissociation? Express the concentration in molarity.

The molarity of the K+ ions is 0.050 M

Explanation:

Step 1: Data given

Molarity K2CO3 = 0.025 M

Step 2: The equation

K2CO3 ⇒ 2K+ + CO3^2-

Step 3: Calculate the concentration of K+

Concentration = 2*0.025 M = 0.050 M

The molarity of the K+ ions is 0.050 M

2h2o2--> 2h2o + o2

this reaction is of the spontaneous decomposition of hydrogen peroxide down into water and oxygen.

add 2 molecules of hydrogen peroxide and 2 molecules of water. since oxygen is naturally diatomic, the total number of atoms of each element is now the same on both sides of the equation so it is balanced.

this may not be entirely correct but let me know.

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