Molarity= moles/Volume => 9/15 = 0.6 mol/L
Answer : The number of sodium ions is equal to the number of formula units of salt.
Explanation : In the given reaction of NaCl the statement which describes it the best is that the number of sodium ions is found to be same along with the formula units in the product side.
+ ----> NaCl.
Its clear from the equation that one mole of Na and one mole of Cl combines together to give the product, which is one mole of NaCl. The number of ions on both the sides are equal.
Answer:
136.36 mL
Explanation:
Here we have to use the dilution formula
From C1V1= C2V2
Where;
C1= initial concentration of the solution= 12.0 M
C2= final concentration of the solution= 2.20 M
V1 = initial volume of the solution= 25.0 ml
V2= final volume of the solution= ?????
Then recall;
C1V1=C2V2
V2 = C1V1/C2
Substituting values from the parameters given;
V2= 12.0 × 25.0 / 2.20
V2= 136.36 mL
Substances that give ions when dissolved in water are called electrolytes. They can be divided into acids, bases, and salts because they all give ions when dissolved in water. These solutions conduct electricity due to the mobility of the positive and negative ions, which are called cations and anions respectively.
Electrolytes are composed of free-moving Charged Particles, i.e. ions. When a PD is applied across the electrolytes, the +ve ions move towards the -ve terminal and gain electrons to become neutral atoms, the opposite happens with the -ve atoms. Electrolytes lose their conductivity over time since they liberate some of the constituents of the electrolyte as gases or metals that settle at the bottom.
Answer:
The pH does not increase drastically because the NaOH reacts with the _HYDRAZOIC ACID__ present in the buffer solution.
Explanation:
NaOH reacts with the hydrazoic acid in the buffer
HN3 + OH? --> H2O + N3-
If you put acid in, it will react with N3-. Here is the equation below:
N3- + H+ --> HN3